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Perform KABI checks in parallel 

Reduce the time required for ./configure to perform the needed
KABI checks by allowing kbuild to compile multiple test cases in
parallel.  This was accomplished by splitting each test's source
code from the logic handling whether that code could be compiled
or not.

By introducing this split it's possible to minimize the number of
times kbuild needs to be invoked.  As importantly, it means all of
the tests can be built in parallel.  This does require a little extra
care since we expect some tests to fail, so the --keep-going (-k)
option must be provided otherwise some tests may not get compiled.
Furthermore, since a failure during the kbuild modpost phase will
result in an early exit; the final linking phase is limited to tests
which passed the initial compilation and produced an object file.

Once everything has been built the configure script proceeds as
previously.  The only significant difference is that it now merely
needs to test for the existence of a .ko file to determine the
result of a given test.  This vastly speeds up the entire process.

New test cases should use ZFS_LINUX_TEST_SRC to declare their test
source code and ZFS_LINUX_TEST_RESULT to check the result.  All of
the existing kernel-*.m4 files have been updated accordingly, see
config/kernel-current-time.m4 for a basic example.  The legacy
ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases
but it's use is not encouraged.

                  master (secs)   patched (secs)
                  -------------   ----------------
autogen.sh        61              68
configure         137             24  (~17% of current run time)
make -j $(nproc)  44              44
make rpms         287             150

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8547 
Closes #9132
Closes #9341
This commit is contained in:
Brian Behlendorf 2019-10-01 12:50:34 -07:00 committed by GitHub
parent 99573cc053
commit 608f8749a1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
118 changed files with 3262 additions and 2144 deletions
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1
.gitignore vendored
View File

@ -36,6 +36,7 @@ Makefile.in
# Top level generated files specific to this top level dir
#
/bin
/build
/configure
/config.log
/config.status

6
Makefile.am
View File

@ -55,7 +55,7 @@ BUILT_SOURCES = gitrev
# Double-colon rules are allowed; there are multiple independent definitions.
distclean-local::
-$(RM) -R autom4te*.cache
-$(RM) -R autom4te*.cache build
-find . \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
-o -name .pc -o -name .hg -o -name .git \) -prune -o \
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
@ -104,8 +104,8 @@ commitcheck:
fi
cstyle:
@find ${top_srcdir} -name '*.[hc]' ! -name 'zfs_config.*' \
! -name '*.mod.c' -type f \
@find ${top_srcdir} -name build -prune -o -name '*.[hc]' \
! -name 'zfs_config.*' ! -name '*.mod.c' -type f \
-exec ${top_srcdir}/scripts/cstyle.pl -cpP {} \+
filter_executable = -exec test -x '{}' \; -print

3
config/iconv.m4
View File

@ -269,8 +269,7 @@ size_t iconv();
[am_cv_proto_iconv_arg1="const"])
am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
AC_MSG_RESULT([
$am_cv_proto_iconv])
AC_MSG_RESULT([$am_cv_proto_iconv])
else
dnl When compiling GNU libiconv on a system that does not have iconv yet,
dnl pick the POSIX compliant declaration without 'const'.

18
config/kernel-access-ok-type.m4
View File

@ -4,17 +4,23 @@ dnl #
dnl # - access_ok(type, addr, size)
dnl # + access_ok(addr, size)
dnl #
AC_DEFUN([ZFS_AC_KERNEL_ACCESS_OK_TYPE], [
AC_MSG_CHECKING([whether access_ok() has 'type' parameter])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_ACCESS_OK_TYPE], [
ZFS_LINUX_TEST_SRC([access_ok_type], [
#include <linux/uaccess.h>
],[
const void __user __attribute__((unused)) *addr = (void *) 0xdeadbeef;
const void __user __attribute__((unused)) *addr =
(void *) 0xdeadbeef;
unsigned long __attribute__((unused)) size = 1;
int error __attribute__((unused)) = access_ok(0, addr, size);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_ACCESS_OK_TYPE], [
AC_MSG_CHECKING([whether access_ok() has 'type' parameter])
ZFS_LINUX_TEST_RESULT([access_ok_type], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ACCESS_OK_TYPE, 1, [kernel has access_ok with 'type' parameter])
AC_DEFINE(HAVE_ACCESS_OK_TYPE, 1,
[kernel has access_ok with 'type' parameter])
],[
AC_MSG_RESULT(no)
])

257
config/kernel-acl.m4
View File

@ -3,32 +3,26 @@ dnl # Check if posix_acl_release can be used from a ZFS_META_LICENSED
dnl # module. The is_owner_or_cap macro was replaced by
dnl # inode_owner_or_capable
dnl #
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_RELEASE], [
AC_MSG_CHECKING([whether posix_acl_release() is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_RELEASE], [
ZFS_LINUX_TEST_SRC([posix_acl_release], [
#include <linux/cred.h>
#include <linux/fs.h>
#include <linux/posix_acl.h>
],[
struct posix_acl* tmp = posix_acl_alloc(1, 0);
], [
struct posix_acl *tmp = posix_acl_alloc(1, 0);
posix_acl_release(tmp);
],[
], [], [$ZFS_META_LICENSE])
])
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_RELEASE], [
AC_MSG_CHECKING([whether posix_acl_release() is available])
ZFS_LINUX_TEST_RESULT([posix_acl_release], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_POSIX_ACL_RELEASE, 1,
[posix_acl_release() is available])
AC_MSG_CHECKING([whether posix_acl_release() is GPL-only])
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
#include <linux/cred.h>
#include <linux/fs.h>
#include <linux/posix_acl.h>
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
struct posix_acl* tmp = posix_acl_alloc(1, 0);
posix_acl_release(tmp);
],[
ZFS_LINUX_TEST_RESULT([posix_acl_release_license], [
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
@ -46,24 +40,25 @@ dnl # set_cached_acl() and forget_cached_acl() changed from inline to
dnl # EXPORT_SYMBOL. In the former case, they may not be usable because of
dnl # posix_acl_release. In the latter case, we can always use them.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SET_CACHED_ACL_USABLE], [
AC_MSG_CHECKING([whether set_cached_acl() is usable])
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
AC_DEFUN([ZFS_AC_KERNEL_SRC_SET_CACHED_ACL_USABLE], [
ZFS_LINUX_TEST_SRC([set_cached_acl], [
#include <linux/cred.h>
#include <linux/fs.h>
#include <linux/posix_acl.h>
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
], [
struct inode *ip = NULL;
struct posix_acl *acl = posix_acl_alloc(1, 0);
set_cached_acl(ip, ACL_TYPE_ACCESS, acl);
forget_cached_acl(ip, ACL_TYPE_ACCESS);
],[
], [], [$ZFS_META_LICENSE])
])
AC_DEFUN([ZFS_AC_KERNEL_SET_CACHED_ACL_USABLE], [
AC_MSG_CHECKING([whether set_cached_acl() is usable])
ZFS_LINUX_TEST_RESULT([set_cached_acl_license], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SET_CACHED_ACL_USABLE, 1,
[posix_acl_release() is usable])
[set_cached_acl() is usable])
],[
AC_MSG_RESULT(no)
])
@ -77,14 +72,25 @@ dnl #
dnl # 3.14 API change,
dnl # posix_acl_chmod() is changed to __posix_acl_chmod()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_CHMOD], [
AC_MSG_CHECKING([whether posix_acl_chmod exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_CHMOD], [
ZFS_LINUX_TEST_SRC([posix_acl_chmod], [
#include <linux/fs.h>
#include <linux/posix_acl.h>
],[
posix_acl_chmod(NULL, 0, 0)
])
ZFS_LINUX_TEST_SRC([__posix_acl_chmod], [
#include <linux/fs.h>
#include <linux/posix_acl.h>
],[
__posix_acl_chmod(NULL, 0, 0)
])
])
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_CHMOD], [
AC_MSG_CHECKING([whether posix_acl_chmod exists])
ZFS_LINUX_TEST_RESULT([posix_acl_chmod], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_POSIX_ACL_CHMOD, 1, [posix_acl_chmod() exists])
],[
@ -92,14 +98,10 @@ AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_CHMOD], [
])
AC_MSG_CHECKING([whether __posix_acl_chmod exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
#include <linux/posix_acl.h>
],[
__posix_acl_chmod(NULL, 0, 0)
],[
ZFS_LINUX_TEST_RESULT([__posix_acl_chmod], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE___POSIX_ACL_CHMOD, 1, [__posix_acl_chmod() exists])
AC_DEFINE(HAVE___POSIX_ACL_CHMOD, 1,
[__posix_acl_chmod() exists])
],[
AC_MSG_RESULT(no)
])
@ -109,18 +111,22 @@ dnl #
dnl # 3.1 API change,
dnl # posix_acl_equiv_mode now wants an umode_t* instead of a mode_t*
dnl #
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T], [
AC_MSG_CHECKING([whether posix_acl_equiv_mode() wants umode_t])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T], [
ZFS_LINUX_TEST_SRC([posix_acl_equiv_mode], [
#include <linux/fs.h>
#include <linux/posix_acl.h>
],[
umode_t tmp;
posix_acl_equiv_mode(NULL,&tmp);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T], [
AC_MSG_CHECKING([whether posix_acl_equiv_mode() wants umode_t])
ZFS_LINUX_TEST_RESULT([posix_acl_equiv_mode], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_POSIX_ACL_EQUIV_MODE_UMODE_T, 1,
[ posix_acl_equiv_mode wants umode_t*])
[posix_acl_equiv_mode wants umode_t*])
],[
AC_MSG_RESULT(no)
])
@ -130,9 +136,8 @@ dnl #
dnl # 4.8 API change,
dnl # The function posix_acl_valid now must be passed a namespace.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS], [
AC_MSG_CHECKING([whether posix_acl_valid() wants user namespace])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_VALID_WITH_NS], [
ZFS_LINUX_TEST_SRC([posix_acl_valid_with_ns], [
#include <linux/fs.h>
#include <linux/posix_acl.h>
],[
@ -141,7 +146,12 @@ AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS], [
int error;
error = posix_acl_valid(user_ns, acl);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS], [
AC_MSG_CHECKING([whether posix_acl_valid() wants user namespace])
ZFS_LINUX_TEST_RESULT([posix_acl_valid_with_ns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_POSIX_ACL_VALID_WITH_NS, 1,
[posix_acl_valid() wants user namespace])
@ -155,9 +165,8 @@ dnl # 2.6.27 API change,
dnl # Check if inode_operations contains the function permission
dnl # and expects the nameidata structure to have been removed.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION], [
AC_MSG_CHECKING([whether iops->permission() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_PERMISSION], [
ZFS_LINUX_TEST_SRC([inode_operations_permission], [
#include <linux/fs.h>
int permission_fn(struct inode *inode, int mask) { return 0; }
@ -166,8 +175,12 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION], [
iops __attribute__ ((unused)) = {
.permission = permission_fn,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION], [
AC_MSG_CHECKING([whether iops->permission() exists])
ZFS_LINUX_TEST_RESULT([inode_operations_permission], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PERMISSION, 1, [iops->permission() exists])
],[
@ -180,9 +193,8 @@ dnl # 2.6.26 API change,
dnl # Check if inode_operations contains the function permission
dnl # and expects the nameidata structure to be passed.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION_WITH_NAMEIDATA], [
AC_MSG_CHECKING([whether iops->permission() wants nameidata])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_PERMISSION_WITH_NAMEIDATA], [
ZFS_LINUX_TEST_SRC([inode_operations_permission_with_nameidata], [
#include <linux/fs.h>
#include <linux/sched.h>
@ -193,8 +205,12 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION_WITH_NAMEIDATA], [
iops __attribute__ ((unused)) = {
.permission = permission_fn,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION_WITH_NAMEIDATA], [
AC_MSG_CHECKING([whether iops->permission() wants nameidata])
ZFS_LINUX_TEST_RESULT([inode_operations_permission_with_nameidata], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PERMISSION, 1, [iops->permission() exists])
AC_DEFINE(HAVE_PERMISSION_WITH_NAMEIDATA, 1,
@ -208,9 +224,8 @@ dnl #
dnl # 2.6.32 API change,
dnl # Check if inode_operations contains the function check_acl
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL], [
AC_MSG_CHECKING([whether iops->check_acl() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_CHECK_ACL], [
ZFS_LINUX_TEST_SRC([inode_operations_check_acl], [
#include <linux/fs.h>
int check_acl_fn(struct inode *inode, int mask) { return 0; }
@ -219,8 +234,12 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL], [
iops __attribute__ ((unused)) = {
.check_acl = check_acl_fn,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL], [
AC_MSG_CHECKING([whether iops->check_acl() exists])
ZFS_LINUX_TEST_RESULT([inode_operations_check_acl], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CHECK_ACL, 1, [iops->check_acl() exists])
],[
@ -232,9 +251,8 @@ dnl #
dnl # 2.6.38 API change,
dnl # The function check_acl gained a new parameter: flags
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS], [
AC_MSG_CHECKING([whether iops->check_acl() wants flags])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS], [
ZFS_LINUX_TEST_SRC([inode_operations_check_acl_with_flags], [
#include <linux/fs.h>
int check_acl_fn(struct inode *inode, int mask,
@ -244,8 +262,12 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS], [
iops __attribute__ ((unused)) = {
.check_acl = check_acl_fn,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS], [
AC_MSG_CHECKING([whether iops->check_acl() wants flags])
ZFS_LINUX_TEST_RESULT([inode_operations_check_acl_with_flags], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CHECK_ACL, 1, [iops->check_acl() exists])
AC_DEFINE(HAVE_CHECK_ACL_WITH_FLAGS, 1,
@ -259,9 +281,8 @@ dnl #
dnl # 3.1 API change,
dnl # Check if inode_operations contains the function get_acl
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL], [
AC_MSG_CHECKING([whether iops->get_acl() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_GET_ACL], [
ZFS_LINUX_TEST_SRC([inode_operations_get_acl], [
#include <linux/fs.h>
struct posix_acl *get_acl_fn(struct inode *inode, int type)
@ -271,8 +292,12 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL], [
iops __attribute__ ((unused)) = {
.get_acl = get_acl_fn,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL], [
AC_MSG_CHECKING([whether iops->get_acl() exists])
ZFS_LINUX_TEST_RESULT([inode_operations_get_acl], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GET_ACL, 1, [iops->get_acl() exists])
],[
@ -284,20 +309,23 @@ dnl #
dnl # 3.14 API change,
dnl # Check if inode_operations contains the function set_acl
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL], [
AC_MSG_CHECKING([whether iops->set_acl() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_SET_ACL], [
ZFS_LINUX_TEST_SRC([inode_operations_set_acl], [
#include <linux/fs.h>
int set_acl_fn(struct inode *inode, struct posix_acl *acl, int type)
{ return 0; }
int set_acl_fn(struct inode *inode, struct posix_acl *acl,
int type) { return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.set_acl = set_acl_fn,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL], [
AC_MSG_CHECKING([whether iops->set_acl() exists])
ZFS_LINUX_TEST_RESULT([inode_operations_set_acl], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists])
],[
@ -311,16 +339,79 @@ dnl # The kernel get_acl will now check cache before calling i_op->get_acl and
dnl # do set_cached_acl after that, so i_op->get_acl don't need to do that
dnl # anymore.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE], [
AC_MSG_CHECKING([whether uncached_acl_sentinel() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_GET_ACL_HANDLE_CACHE], [
ZFS_LINUX_TEST_SRC([get_acl_handle_cache], [
#include <linux/fs.h>
],[
void *sentinel __attribute__ ((unused)) = uncached_acl_sentinel(NULL);
],[
void *sentinel __attribute__ ((unused)) =
uncached_acl_sentinel(NULL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE], [
AC_MSG_CHECKING([whether uncached_acl_sentinel() exists])
ZFS_LINUX_TEST_RESULT([get_acl_handle_cache], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KERNEL_GET_ACL_HANDLE_CACHE, 1, [uncached_acl_sentinel() exists])
AC_DEFINE(HAVE_KERNEL_GET_ACL_HANDLE_CACHE, 1,
[uncached_acl_sentinel() exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 4.16 kernel: check if struct posix_acl acl.a_refcount is a refcount_t.
dnl # It's an atomic_t on older kernels.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_ACL_HAS_REFCOUNT], [
ZFS_LINUX_TEST_SRC([acl_refcount], [
#include <linux/backing-dev.h>
#include <linux/refcount.h>
#include <linux/posix_acl.h>
],[
struct posix_acl acl;
refcount_t *r __attribute__ ((unused)) = &acl.a_refcount;
])
])
AC_DEFUN([ZFS_AC_KERNEL_ACL_HAS_REFCOUNT], [
AC_MSG_CHECKING([whether posix_acl has refcount_t])
ZFS_LINUX_TEST_RESULT([acl_refcount], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ACL_REFCOUNT, 1, [posix_acl has refcount_t])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_ACL], [
ZFS_AC_KERNEL_SRC_POSIX_ACL_RELEASE
ZFS_AC_KERNEL_SRC_SET_CACHED_ACL_USABLE
ZFS_AC_KERNEL_SRC_POSIX_ACL_CHMOD
ZFS_AC_KERNEL_SRC_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T
ZFS_AC_KERNEL_SRC_POSIX_ACL_VALID_WITH_NS
ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_PERMISSION
ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_PERMISSION_WITH_NAMEIDATA
ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_CHECK_ACL
ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS
ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_GET_ACL
ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_SET_ACL
ZFS_AC_KERNEL_SRC_GET_ACL_HANDLE_CACHE
ZFS_AC_KERNEL_SRC_ACL_HAS_REFCOUNT
])
AC_DEFUN([ZFS_AC_KERNEL_ACL], [
ZFS_AC_KERNEL_POSIX_ACL_RELEASE
ZFS_AC_KERNEL_SET_CACHED_ACL_USABLE
ZFS_AC_KERNEL_POSIX_ACL_CHMOD
ZFS_AC_KERNEL_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T
ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS
ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION
ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION_WITH_NAMEIDATA
ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL
ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS
ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL
ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL
ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE
ZFS_AC_KERNEL_ACL_HAS_REFCOUNT
])

14
config/kernel-aio-fsync.m4
View File

@ -1,21 +1,23 @@
dnl #
dnl # Linux 4.9-rc5+ ABI, removal of the .aio_fsync field
dnl #
AC_DEFUN([ZFS_AC_KERNEL_AIO_FSYNC], [
AC_MSG_CHECKING([whether fops->aio_fsync() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_AIO_FSYNC], [
ZFS_LINUX_TEST_SRC([aio_fsync], [
#include <linux/fs.h>
static const struct file_operations
fops __attribute__ ((unused)) = {
.aio_fsync = NULL,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_AIO_FSYNC], [
AC_MSG_CHECKING([whether fops->aio_fsync() exists])
ZFS_LINUX_TEST_RESULT([aio_fsync], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FILE_AIO_FSYNC, 1, [fops->aio_fsync() exists])
],[
AC_MSG_RESULT(no)
])
])

13
config/kernel-automount.m4
View File

@ -5,16 +5,19 @@ dnl # solution to handling automounts. Prior to this cifs/nfs clients
dnl # which required automount support would abuse the follow_link()
dnl # operation on directories for this purpose.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_AUTOMOUNT], [
AC_MSG_CHECKING([whether dops->d_automount() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_AUTOMOUNT], [
ZFS_LINUX_TEST_SRC([dentry_operations_d_automount], [
#include <linux/dcache.h>
struct vfsmount *d_automount(struct path *p) { return NULL; }
struct dentry_operations dops __attribute__ ((unused)) = {
.d_automount = d_automount,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_AUTOMOUNT], [
AC_MSG_CHECKING([whether dops->d_automount() exists])
ZFS_LINUX_TEST_RESULT([dentry_operations_d_automount], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_AUTOMOUNT, 1, [dops->automount() exists])
],[

17
config/kernel-bdev-logical-size.m4
View File

@ -5,21 +5,22 @@ dnl # it has been true for a while that there was no strict 1:1 mapping
dnl # between physical sector size and logical block size this change makes
dnl # it explicit.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BDEV_LOGICAL_BLOCK_SIZE], [
AC_MSG_CHECKING([whether bdev_logical_block_size() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BDEV_LOGICAL_BLOCK_SIZE], [
ZFS_LINUX_TEST_SRC([bdev_logical_block_size], [
#include <linux/blkdev.h>
],[
struct block_device *bdev = NULL;
bdev_logical_block_size(bdev);
],[
], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BDEV_LOGICAL_BLOCK_SIZE], [
AC_MSG_CHECKING([whether bdev_logical_block_size() is available])
ZFS_LINUX_TEST_RESULT([bdev_logical_block_size], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BDEV_LOGICAL_BLOCK_SIZE, 1,
[bdev_logical_block_size() is available])
[bdev_logical_block_size() is available])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

17
config/kernel-bdev-physical-size.m4
View File

@ -19,21 +19,22 @@ dnl #
dnl # Unfortunately, this interface isn't entirely reliable because
dnl # drives are sometimes known to misreport this value.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BDEV_PHYSICAL_BLOCK_SIZE], [
AC_MSG_CHECKING([whether bdev_physical_block_size() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BDEV_PHYSICAL_BLOCK_SIZE], [
ZFS_LINUX_TEST_SRC([bdev_physical_block_size], [
#include <linux/blkdev.h>
],[
struct block_device *bdev = NULL;
bdev_physical_block_size(bdev);
],[
], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BDEV_PHYSICAL_BLOCK_SIZE], [
AC_MSG_CHECKING([whether bdev_physical_block_size() is available])
ZFS_LINUX_TEST_RESULT([bdev_physical_block_size], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BDEV_PHYSICAL_BLOCK_SIZE, 1,
[bdev_physical_block_size() is available])
[bdev_physical_block_size() is available])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

78
config/kernel-bdi.m4
View File

@ -1,55 +1,81 @@
dnl #
dnl # 2.6.32 - 2.6.33, bdi_setup_and_register() is not exported.
dnl # 2.6.34 - 3.19, bdi_setup_and_register() takes 3 arguments.
dnl # 4.0 - 4.11, bdi_setup_and_register() takes 2 arguments.
dnl # 4.12 - x.y, super_setup_bdi_name() new interface.
dnl # Check available BDI interfaces.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BDI], [
AC_MSG_CHECKING([whether super_setup_bdi_name() exists])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BDI], [
ZFS_LINUX_TEST_SRC([super_setup_bdi_name], [
#include <linux/fs.h>
struct super_block sb;
], [
char *name = "bdi";
atomic_long_t zfs_bdi_seq;
int error __attribute__((unused)) =
super_setup_bdi_name(&sb, "%.28s-%ld", name, atomic_long_inc_return(&zfs_bdi_seq));
], [super_setup_bdi_name], [fs/super.c], [
super_setup_bdi_name(&sb, "%.28s-%ld", name,
atomic_long_inc_return(&zfs_bdi_seq));
])
ZFS_LINUX_TEST_SRC([bdi_setup_and_register], [
#include <linux/backing-dev.h>
struct backing_dev_info bdi;
], [
char *name = "bdi";
int error __attribute__((unused)) =
bdi_setup_and_register(&bdi, name);
])
ZFS_LINUX_TEST_SRC([bdi_setup_and_register_3args], [
#include <linux/backing-dev.h>
struct backing_dev_info bdi;
], [
char *name = "bdi";
unsigned int cap = BDI_CAP_MAP_COPY;
int error __attribute__((unused)) =
bdi_setup_and_register(&bdi, name, cap);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BDI], [
dnl #
dnl # 4.12, super_setup_bdi_name() introduced.
dnl #
AC_MSG_CHECKING([whether super_setup_bdi_name() exists])
ZFS_LINUX_TEST_RESULT_SYMBOL([super_setup_bdi_name],
[super_setup_bdi_name], [fs/super.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SUPER_SETUP_BDI_NAME, 1,
[super_setup_bdi_name() exits])
], [
AC_MSG_RESULT(no)
dnl #
dnl # 4.0 - 4.11, bdi_setup_and_register() takes 2 arguments.
dnl #
AC_MSG_CHECKING(
[whether bdi_setup_and_register() wants 2 args])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/backing-dev.h>
struct backing_dev_info bdi;
], [
char *name = "bdi";
int error __attribute__((unused)) =
bdi_setup_and_register(&bdi, name);
], [bdi_setup_and_register], [mm/backing-dev.c], [
ZFS_LINUX_TEST_RESULT_SYMBOL([bdi_setup_and_register],
[bdi_setup_and_register], [mm/backing-dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_2ARGS_BDI_SETUP_AND_REGISTER, 1,
[bdi_setup_and_register() wants 2 args])
], [
AC_MSG_RESULT(no)
dnl #
dnl # 2.6.34 - 3.19, bdi_setup_and_register()
dnl # takes 3 arguments.
dnl #
AC_MSG_CHECKING(
[whether bdi_setup_and_register() wants 3 args])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/backing-dev.h>
struct backing_dev_info bdi;
], [
char *name = "bdi";
unsigned int cap = BDI_CAP_MAP_COPY;
int error __attribute__((unused)) =
bdi_setup_and_register(&bdi, name, cap);
], [bdi_setup_and_register], [mm/backing-dev.c], [
ZFS_LINUX_TEST_RESULT_SYMBOL(
[bdi_setup_and_register_3args],
[bdi_setup_and_register], [mm/backing-dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_3ARGS_BDI_SETUP_AND_REGISTER, 1,
[bdi_setup_and_register() wants 3 args])
], [
dnl #
dnl # 2.6.32 - 2.6.33, bdi_setup_and_register()
dnl # is not exported.
dnl #
AC_MSG_RESULT(no)
])
])

13
config/kernel-bio-bvec-iter.m4
View File

@ -3,18 +3,21 @@ dnl # 3.14 API change,
dnl # Immutable biovecs. A number of fields of struct bio are moved to
dnl # struct bvec_iter.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BIO_BVEC_ITER], [
AC_MSG_CHECKING([whether bio has bi_iter])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_BVEC_ITER], [
ZFS_LINUX_TEST_SRC([bio_bvec_iter], [
#include <linux/bio.h>
],[
struct bio bio;
bio.bi_iter.bi_sector = 0;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_BVEC_ITER], [
AC_MSG_CHECKING([whether bio has bi_iter])
ZFS_LINUX_TEST_RESULT([bio_bvec_iter], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_BVEC_ITER, 1, [bio has bi_iter])
],[
AC_MSG_RESULT(no)
])
])

36
config/kernel-bio-end-io-t-args.m4
View File

@ -5,20 +5,21 @@ dnl # bio->bi_error. This also replaces bio->bi_flags value BIO_UPTODATE.
dnl # Introduced by torvalds/linux@4246a0b63bd8f56a1469b12eafeb875b1041a451
dnl # ("block: add a bi_error field to struct bio").
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_END_IO_T_ARGS], [
ZFS_LINUX_TEST_SRC([bio_end_io_t_args], [
#include <linux/bio.h>
void wanted_end_io(struct bio *bio) { return; }
bio_end_io_t *end_io __attribute__ ((unused)) = wanted_end_io;
], [])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_END_IO_T_ARGS], [
AC_MSG_CHECKING([whether bio_end_io_t wants 1 arg])
ZFS_LINUX_TRY_COMPILE([
#include <linux/bio.h>
void wanted_end_io(struct bio *bio) { return; }
bio_end_io_t *end_io __attribute__ ((unused)) = wanted_end_io;
],[
],[
ZFS_LINUX_TEST_RESULT([bio_end_io_t_args], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_1ARG_BIO_END_IO_T, 1,
[bio_end_io_t wants 1 arg])
],[
[bio_end_io_t wants 1 arg])
], [
AC_MSG_RESULT(no)
])
])
@ -28,16 +29,19 @@ dnl # 4.13 API change
dnl # The bio->bi_error field was replaced with bio->bi_status which is an
dnl # enum which describes all possible error types.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BIO_BI_STATUS], [
AC_MSG_CHECKING([whether bio->bi_status exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_BI_STATUS], [
ZFS_LINUX_TEST_SRC([bio_bi_status], [
#include <linux/bio.h>
],[
], [
struct bio bio __attribute__ ((unused));
blk_status_t status __attribute__ ((unused)) = BLK_STS_OK;
bio.bi_status = status;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_BI_STATUS], [
AC_MSG_CHECKING([whether bio->bi_status exists])
ZFS_LINUX_TEST_RESULT([bio_bi_status], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_BI_STATUS, 1, [bio->bi_status exists])
],[

39
config/kernel-bio-failfast.m4
View File

@ -3,37 +3,54 @@ dnl # Preferred interface for setting FAILFAST on a bio:
dnl # 2.6.28-2.6.35: BIO_RW_FAILFAST_{DEV|TRANSPORT|DRIVER}
dnl # >= 2.6.36: REQ_FAILFAST_{DEV|TRANSPORT|DRIVER}
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BIO_FAILFAST_DTD], [
AC_MSG_CHECKING([whether BIO_RW_FAILFAST_* are defined])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_FAILFAST_DTD], [
ZFS_LINUX_TEST_SRC([bio_failfast_dtd], [
#include <linux/bio.h>
],[
int flags __attribute__ ((unused));
flags = ((1 << BIO_RW_FAILFAST_DEV) |
(1 << BIO_RW_FAILFAST_TRANSPORT) |
(1 << BIO_RW_FAILFAST_DRIVER));
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_FAILFAST_DTD], [
AC_MSG_CHECKING([whether BIO_RW_FAILFAST_* are defined])
ZFS_LINUX_TEST_RESULT([bio_failfast_dtd], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_RW_FAILFAST_DTD, 1,
[BIO_RW_FAILFAST_* are defined])
[BIO_RW_FAILFAST_* are defined])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_REQ_FAILFAST_MASK], [
AC_MSG_CHECKING([whether REQ_FAILFAST_MASK is defined])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_REQ_FAILFAST_MASK], [
ZFS_LINUX_TEST_SRC([bio_failfast_mask], [
#include <linux/bio.h>
],[
int flags __attribute__ ((unused));
flags = REQ_FAILFAST_MASK;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_REQ_FAILFAST_MASK], [
AC_MSG_CHECKING([whether REQ_FAILFAST_MASK is defined])
ZFS_LINUX_TEST_RESULT([bio_failfast_mask], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_REQ_FAILFAST_MASK, 1,
[REQ_FAILFAST_MASK is defined])
[REQ_FAILFAST_MASK is defined])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_FAILFAST], [
ZFS_AC_KERNEL_SRC_BIO_FAILFAST_DTD
ZFS_AC_KERNEL_SRC_REQ_FAILFAST_MASK
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_FAILFAST], [
ZFS_AC_KERNEL_BIO_FAILFAST_DTD
ZFS_AC_KERNEL_REQ_FAILFAST_MASK
])

74
config/kernel-bio-op.m4
View File

@ -5,13 +5,43 @@ dnl # The bio_op() helper was introduced as a replacement for explicitly
dnl # checking the bio->bi_rw flags. The following checks are used to
dnl # detect if a specific operation is supported.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_DISCARD], [
AC_MSG_CHECKING([whether REQ_OP_DISCARD is defined])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_OPS], [
ZFS_LINUX_TEST_SRC([req_op_discard], [
#include <linux/blk_types.h>
],[
int op __attribute__ ((unused)) = REQ_OP_DISCARD;
])
ZFS_LINUX_TEST_SRC([req_op_secure_erase], [
#include <linux/blk_types.h>
],[
int op __attribute__ ((unused)) = REQ_OP_SECURE_ERASE;
])
ZFS_LINUX_TEST_SRC([req_op_flush], [
#include <linux/blk_types.h>
],[
int op __attribute__ ((unused)) = REQ_OP_FLUSH;
])
ZFS_LINUX_TEST_SRC([bio_bi_opf], [
#include <linux/bio.h>
],[
struct bio bio __attribute__ ((unused));
bio.bi_opf = 0;
])
ZFS_LINUX_TEST_SRC([bio_set_op_attrs], [
#include <linux/bio.h>
],[
struct bio *bio __attribute__ ((unused)) = NULL;
bio_set_op_attrs(bio, 0, 0);
])
])
AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_DISCARD], [
AC_MSG_CHECKING([whether REQ_OP_DISCARD is defined])
ZFS_LINUX_TEST_RESULT([req_op_discard], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_REQ_OP_DISCARD, 1,
[REQ_OP_DISCARD is defined])
@ -22,11 +52,7 @@ AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_DISCARD], [
AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_SECURE_ERASE], [
AC_MSG_CHECKING([whether REQ_OP_SECURE_ERASE is defined])
ZFS_LINUX_TRY_COMPILE([
#include <linux/blk_types.h>
],[
int op __attribute__ ((unused)) = REQ_OP_SECURE_ERASE;
],[
ZFS_LINUX_TEST_RESULT([req_op_secure_erase], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_REQ_OP_SECURE_ERASE, 1,
[REQ_OP_SECURE_ERASE is defined])
@ -38,14 +64,9 @@ AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_SECURE_ERASE], [
AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_FLUSH], [
AC_MSG_CHECKING([whether REQ_OP_FLUSH is defined])
ZFS_LINUX_TRY_COMPILE([
#include <linux/blk_types.h>
],[
int op __attribute__ ((unused)) = REQ_OP_FLUSH;
],[
ZFS_LINUX_TEST_RESULT([req_op_flush], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_REQ_OP_FLUSH, 1,
[REQ_OP_FLUSH is defined])
AC_DEFINE(HAVE_REQ_OP_FLUSH, 1, [REQ_OP_FLUSH is defined])
],[
AC_MSG_RESULT(no)
])
@ -53,12 +74,7 @@ AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_FLUSH], [
AC_DEFUN([ZFS_AC_KERNEL_BIO_BI_OPF], [
AC_MSG_CHECKING([whether bio->bi_opf is defined])
ZFS_LINUX_TRY_COMPILE([
#include <linux/bio.h>
],[
struct bio bio __attribute__ ((unused));
bio.bi_opf = 0;
],[
ZFS_LINUX_TEST_RESULT([bio_bi_opf], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_BI_OPF, 1, [bio->bi_opf is defined])
],[
@ -68,13 +84,7 @@ AC_DEFUN([ZFS_AC_KERNEL_BIO_BI_OPF], [
AC_DEFUN([ZFS_AC_KERNEL_HAVE_BIO_SET_OP_ATTRS], [
AC_MSG_CHECKING([whether bio_set_op_attrs is available])
ZFS_LINUX_TRY_COMPILE([
#include <linux/bio.h>
],[
struct bio *bio __attribute__ ((unused)) = NULL;
bio_set_op_attrs(bio, 0, 0);
],[
ZFS_LINUX_TEST_RESULT([bio_set_op_attrs], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_SET_OP_ATTRS, 1,
[bio_set_op_attrs is available])
@ -82,3 +92,11 @@ AC_DEFUN([ZFS_AC_KERNEL_HAVE_BIO_SET_OP_ATTRS], [
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_OPS], [
ZFS_AC_KERNEL_REQ_OP_DISCARD
ZFS_AC_KERNEL_REQ_OP_SECURE_ERASE
ZFS_AC_KERNEL_REQ_OP_FLUSH
ZFS_AC_KERNEL_BIO_BI_OPF
ZFS_AC_KERNEL_HAVE_BIO_SET_OP_ATTRS
])

15
config/kernel-bio-rw-barrier.m4
View File

@ -3,20 +3,25 @@ dnl # Interface for issuing a discard bio:
dnl # 2.6.28-2.6.35: BIO_RW_BARRIER
dnl # 2.6.36-3.x: REQ_BARRIER
dnl #
dnl #
dnl # Since REQ_BARRIER is a preprocessor definition, there is no need for an
dnl # autotools check for it. Also, REQ_BARRIER existed in the request layer
dnl # until torvalds/linux@7b6d91daee5cac6402186ff224c3af39d79f4a0e unified the
dnl # request layer and bio layer flags, so it would be wrong to assume that
dnl # the APIs are mutually exclusive contrary to the typical case.
AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_BARRIER], [
AC_MSG_CHECKING([whether BIO_RW_BARRIER is defined])
ZFS_LINUX_TRY_COMPILE([
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_RW_BARRIER], [
ZFS_LINUX_TEST_SRC([bio_rw_barrier], [
#include <linux/bio.h>
],[
int flags __attribute__ ((unused));
flags = BIO_RW_BARRIER;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_BARRIER], [
AC_MSG_CHECKING([whether BIO_RW_BARRIER is defined])
ZFS_LINUX_TEST_RESULT([bio_rw_barrier], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_RW_BARRIER, 1, [BIO_RW_BARRIER is defined])
],[

15
config/kernel-bio-rw-discard.m4
View File

@ -3,20 +3,25 @@ dnl # Interface for issuing a discard bio:
dnl # 2.6.28-2.6.35: BIO_RW_DISCARD
dnl # 2.6.36-3.x: REQ_DISCARD
dnl #
dnl #
dnl # Since REQ_DISCARD is a preprocessor definition, there is no need for an
dnl # autotools check for it. Also, REQ_DISCARD existed in the request layer
dnl # until torvalds/linux@7b6d91daee5cac6402186ff224c3af39d79f4a0e unified the
dnl # request layer and bio layer flags, so it would be wrong to assume that
dnl # the APIs are mutually exclusive contrary to the typical case.
AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_DISCARD], [
AC_MSG_CHECKING([whether BIO_RW_DISCARD is defined])
ZFS_LINUX_TRY_COMPILE([
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_RW_DISCARD], [
ZFS_LINUX_TEST_SRC([bio_rw_discard], [
#include <linux/bio.h>
],[
int flags __attribute__ ((unused));
flags = BIO_RW_DISCARD;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_DISCARD], [
AC_MSG_CHECKING([whether BIO_RW_DISCARD is defined])
ZFS_LINUX_TEST_RESULT([bio_rw_discard], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_RW_DISCARD, 1, [BIO_RW_DISCARD is defined])
],[

51
config/kernel-bio_set_dev.m4
View File

@ -3,51 +3,38 @@ dnl # Linux 4.14 API,
dnl #
dnl # The bio_set_dev() helper macro was introduced as part of the transition
dnl # to have struct gendisk in struct bio.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV_MACRO], [
AC_MSG_CHECKING([whether bio_set_dev() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/bio.h>
#include <linux/fs.h>
],[
struct block_device *bdev = NULL;
struct bio *bio = NULL;
bio_set_dev(bio, bdev);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_SET_DEV, 1, [bio_set_dev() exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # Linux 5.0 API,
dnl #
dnl # The bio_set_dev() helper macro was updated to internally depend on
dnl # bio_associate_blkg() symbol which is exported GPL-only.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV_GPL_ONLY], [
AC_MSG_CHECKING([whether bio_set_dev() is GPL-only])
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_SET_DEV], [
ZFS_LINUX_TEST_SRC([bio_set_dev], [
#include <linux/bio.h>
#include <linux/fs.h>
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
struct block_device *bdev = NULL;
struct bio *bio = NULL;
bio_set_dev(bio, bdev);
],[
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_SET_DEV_GPL_ONLY, 1,
[bio_set_dev() GPL-only])
])
], [], [$ZFS_META_LICENSE])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV], [
ZFS_AC_KERNEL_BIO_SET_DEV_MACRO
ZFS_AC_KERNEL_BIO_SET_DEV_GPL_ONLY
AC_MSG_CHECKING([whether bio_set_dev() is available])
ZFS_LINUX_TEST_RESULT([bio_set_dev], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_SET_DEV, 1, [bio_set_dev() is available])
AC_MSG_CHECKING([whether bio_set_dev() is GPL-only])
ZFS_LINUX_TEST_RESULT([bio_set_dev_license], [
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_SET_DEV_GPL_ONLY, 1,
[bio_set_dev() GPL-only])
])
],[
AC_MSG_RESULT(no)
])
])

12
config/kernel-blk-queue-bdi.m4
View File

@ -2,15 +2,19 @@ dnl #
dnl # 2.6.32 - 4.11, statically allocated bdi in request_queue
dnl # 4.12 - x.y, dynamically allocated bdi in request_queue
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_BDI], [
AC_MSG_CHECKING([whether blk_queue bdi is dynamic])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_BDI], [
ZFS_LINUX_TEST_SRC([blk_queue_bdi], [
#include <linux/blkdev.h>
],[
struct request_queue q;
struct backing_dev_info bdi;
q.backing_dev_info = &bdi;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_BDI], [
AC_MSG_CHECKING([whether blk_queue bdi is dynamic])
ZFS_LINUX_TEST_RESULT([blk_queue_bdi], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_BDI_DYNAMIC, 1,
[blk queue backing_dev_info is dynamic])

41
config/kernel-blk-queue-discard.m4
View File

@ -2,16 +2,19 @@ dnl #
dnl # 2.6.32 - 4.x API,
dnl # blk_queue_discard()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_DISCARD], [
AC_MSG_CHECKING([whether blk_queue_discard() is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_DISCARD], [
ZFS_LINUX_TEST_SRC([blk_queue_discard], [
#include <linux/blkdev.h>
],[
struct request_queue *q __attribute__ ((unused)) = NULL;
int value __attribute__ ((unused));
value = blk_queue_discard(q);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_DISCARD], [
AC_MSG_CHECKING([whether blk_queue_discard() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_discard], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_DISCARD, 1,
[blk_queue_discard() is available])
@ -30,16 +33,27 @@ dnl #
dnl # 2.6.x - 2.6.35 API,
dnl # Unsupported by kernel
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE], [
AC_MSG_CHECKING([whether blk_queue_secure_erase() is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_SECURE_ERASE], [
ZFS_LINUX_TEST_SRC([blk_queue_secure_erase], [
#include <linux/blkdev.h>
],[
struct request_queue *q __attribute__ ((unused)) = NULL;
int value __attribute__ ((unused));
value = blk_queue_secure_erase(q);
])
ZFS_LINUX_TEST_SRC([blk_queue_secdiscard], [
#include <linux/blkdev.h>
],[
struct request_queue *q __attribute__ ((unused)) = NULL;
int value __attribute__ ((unused));
value = blk_queue_secdiscard(q);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE], [
AC_MSG_CHECKING([whether blk_queue_secure_erase() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_secure_erase], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_SECURE_ERASE, 1,
[blk_queue_secure_erase() is available])
@ -47,14 +61,7 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE], [
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether blk_queue_secdiscard() is available])
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
struct request_queue *q __attribute__ ((unused)) = NULL;
int value __attribute__ ((unused));
value = blk_queue_secdiscard(q);
],[
ZFS_LINUX_TEST_RESULT([blk_queue_secdiscard], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_SECDISCARD, 1,
[blk_queue_secdiscard() is available])

40
config/kernel-blk-queue-flags.m4
View File

@ -3,36 +3,54 @@ dnl # API change
dnl # https://github.com/torvalds/linux/commit/8814ce8
dnl # Introduction of blk_queue_flag_set and blk_queue_flag_clear
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET], [
AC_MSG_CHECKING([whether blk_queue_flag_set() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_SET], [
ZFS_LINUX_TEST_SRC([blk_queue_flag_set], [
#include <linux/kernel.h>
#include <linux/blkdev.h>
],[
struct request_queue *q = NULL;
blk_queue_flag_set(0, q);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET], [
AC_MSG_CHECKING([whether blk_queue_flag_set() exists])
ZFS_LINUX_TEST_RESULT([blk_queue_flag_set], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLAG_SET, 1, [blk_queue_flag_set() exists])
AC_DEFINE(HAVE_BLK_QUEUE_FLAG_SET, 1,
[blk_queue_flag_set() exists])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR], [
AC_MSG_CHECKING([whether blk_queue_flag_clear() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_CLEAR], [
ZFS_LINUX_TEST_SRC([blk_queue_flag_clear], [
#include <linux/kernel.h>
#include <linux/blkdev.h>
],[
struct request_queue *q = NULL;
blk_queue_flag_clear(0, q);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR], [
AC_MSG_CHECKING([whether blk_queue_flag_clear() exists])
ZFS_LINUX_TEST_RESULT([blk_queue_flag_clear], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLAG_CLEAR, 1, [blk_queue_flag_clear() exists])
AC_DEFINE(HAVE_BLK_QUEUE_FLAG_CLEAR, 1,
[blk_queue_flag_clear() exists])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAGS], [
ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_SET
ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_CLEAR
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAGS], [
ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET
ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR
])

64
config/kernel-blk-queue-flush.m4
View File

@ -9,35 +9,37 @@ dnl # there we implement our own compatibility function, otherwise
dnl # we use the function. The hope is that long term this function
dnl # will be opened up.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLUSH], [
AC_MSG_CHECKING([whether blk_queue_flush() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLUSH], [
ZFS_LINUX_TEST_SRC([blk_queue_flush], [
#include <linux/blkdev.h>
],[
], [
struct request_queue *q = NULL;
(void) blk_queue_flush(q, REQ_FLUSH);
],[
], [$NO_UNUSED_BUT_SET_VARIABLE], [$ZFS_META_LICENSE])
ZFS_LINUX_TEST_SRC([blk_queue_write_cache], [
#include <linux/kernel.h>
#include <linux/blkdev.h>
], [
struct request_queue *q = NULL;
blk_queue_write_cache(q, true, true);
], [$NO_UNUSED_BUT_SET_VARIABLE], [$ZFS_META_LICENSE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLUSH], [
AC_MSG_CHECKING([whether blk_queue_flush() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_flush], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLUSH, 1,
[blk_queue_flush() is available])
[blk_queue_flush() is available])
AC_MSG_CHECKING([whether blk_queue_flush() is GPL-only])
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
#include <linux/blkdev.h>
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
struct request_queue *q = NULL;
(void) blk_queue_flush(q, REQ_FLUSH);
],[
ZFS_LINUX_TEST_RESULT([blk_queue_flush_license], [
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLUSH_GPL_ONLY, 1,
[blk_queue_flush() is GPL-only])
[blk_queue_flush() is GPL-only])
])
],[
AC_MSG_RESULT(no)
@ -48,38 +50,20 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLUSH], [
dnl # Replace blk_queue_flush with blk_queue_write_cache
dnl #
AC_MSG_CHECKING([whether blk_queue_write_cache() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/kernel.h>
#include <linux/blkdev.h>
],[
struct request_queue *q = NULL;
blk_queue_write_cache(q, true, true);
],[
ZFS_LINUX_TEST_RESULT([blk_queue_write_cache], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE, 1,
[blk_queue_write_cache() exists])
[blk_queue_write_cache() exists])
AC_MSG_CHECKING([whether blk_queue_write_cache() is GPL-only])
ZFS_LINUX_TRY_COMPILE([
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/blkdev.h>
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
struct request_queue *q = NULL;
blk_queue_write_cache(q, true, true);
],[
ZFS_LINUX_TEST_RESULT([blk_queue_write_cache_license], [
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE_GPL_ONLY, 1,
[blk_queue_write_cache() is GPL-only])
[blk_queue_write_cache() is GPL-only])
])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

19
config/kernel-blk-queue-max-hw-sectors.m4
View File

@ -2,21 +2,22 @@ dnl #
dnl # 2.6.34 API change
dnl # blk_queue_max_hw_sectors() replaces blk_queue_max_sectors().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS], [
AC_MSG_CHECKING([whether blk_queue_max_hw_sectors() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_HW_SECTORS], [
ZFS_LINUX_TEST_SRC([blk_queue_max_hw_sectors], [
#include <linux/blkdev.h>
],[
], [
struct request_queue *q = NULL;
(void) blk_queue_max_hw_sectors(q, BLK_SAFE_MAX_SECTORS);
],[
], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS], [
AC_MSG_CHECKING([whether blk_queue_max_hw_sectors() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_max_hw_sectors], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_MAX_HW_SECTORS, 1,
[blk_queue_max_hw_sectors() is available])
[blk_queue_max_hw_sectors() is available])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

21
config/kernel-blk-queue-max-segments.m4
View File

@ -3,21 +3,22 @@ dnl # 2.6.34 API change
dnl # blk_queue_max_segments() consolidates blk_queue_max_hw_segments()
dnl # and blk_queue_max_phys_segments().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS], [
AC_MSG_CHECKING([whether blk_queue_max_segments() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_SEGMENTS], [
ZFS_LINUX_TEST_SRC([blk_queue_max_segments], [
#include <linux/blkdev.h>
],[
], [
struct request_queue *q = NULL;
(void) blk_queue_max_segments(q, BLK_MAX_SEGMENTS);
],[
], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS], [
AC_MSG_CHECKING([whether blk_queue_max_segments() is available])
ZFS_LINUX_TEST_RESULT([blk_queue_max_segments], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
[blk_queue_max_segments() is available])
],[
[blk_queue_max_segments() is available])
], [
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

48
config/kernel-blk-queue-unplug.m4
View File

@ -2,43 +2,53 @@ dnl #
dnl # 2.6.32-2.6.35 API - The BIO_RW_UNPLUG enum can be used as a hint
dnl # to unplug the queue.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BIO_RW_UNPLUG], [
AC_MSG_CHECKING([whether the BIO_RW_UNPLUG enum is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_RW_UNPLUG], [
ZFS_LINUX_TEST_SRC([blk_queue_bio_rw_unplug], [
#include <linux/blkdev.h>
],[
extern enum bio_rw_flags rw;
enum bio_rw_flags rw __attribute__ ((unused)) = BIO_RW_UNPLUG;
])
])
rw = BIO_RW_UNPLUG;
],[
AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_UNPLUG], [
AC_MSG_CHECKING([whether the BIO_RW_UNPLUG enum is available])
ZFS_LINUX_TEST_RESULT([blk_queue_bio_rw_unplug], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_HAVE_BIO_RW_UNPLUG, 1,
[BIO_RW_UNPLUG is available])
[BIO_RW_UNPLUG is available])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BLK_PLUG], [
AC_MSG_CHECKING([whether struct blk_plug is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_PLUG], [
ZFS_LINUX_TEST_SRC([blk_plug], [
#include <linux/blkdev.h>
],[
struct blk_plug plug;
struct blk_plug plug __attribute__ ((unused));
blk_start_plug(&plug);
blk_finish_plug(&plug);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_PLUG], [
AC_MSG_CHECKING([whether struct blk_plug is available])
ZFS_LINUX_TEST_RESULT([blk_plug], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_HAVE_BLK_PLUG, 1,
[struct blk_plug is available])
[struct blk_plug is available])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_PLUG], [
ZFS_AC_KERNEL_SRC_BIO_RW_UNPLUG
ZFS_AC_KERNEL_SRC_BLK_PLUG
])
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_PLUG], [
ZFS_AC_KERNEL_BIO_RW_UNPLUG
ZFS_AC_KERNEL_BLK_PLUG
])

15
config/kernel-blkdev-get-by-path.m4
View File

@ -3,16 +3,21 @@ dnl # 2.6.38 API change
dnl # open_bdev_exclusive() changed to blkdev_get_by_path()
dnl # close_bdev_exclusive() changed to blkdev_put()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH],
[AC_MSG_CHECKING([whether blkdev_get_by_path() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_GET_BY_PATH], [
ZFS_LINUX_TEST_SRC([blkdev_get_by_path], [
#include <linux/fs.h>
], [
blkdev_get_by_path(NULL, 0, NULL);
], [blkdev_get_by_path], [fs/block_dev.c], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH], [
AC_MSG_CHECKING([whether blkdev_get_by_path() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([blkdev_get_by_path],
[blkdev_get_by_path], [fs/block_dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLKDEV_GET_BY_PATH, 1,
[blkdev_get_by_path() is available])
[blkdev_get_by_path() is available])
], [
AC_MSG_RESULT(no)
])

12
config/kernel-blkdev-reread-part.m4
View File

@ -2,16 +2,20 @@ dnl #
dnl # 4.1 API, exported blkdev_reread_part() symbol, backported to the
dnl # 3.10.0 CentOS 7.x enterprise kernels.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_REREAD_PART], [
AC_MSG_CHECKING([whether blkdev_reread_part() is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_REREAD_PART], [
ZFS_LINUX_TEST_SRC([blkdev_reread_part], [
#include <linux/fs.h>
], [
struct block_device *bdev = NULL;
int error;
error = blkdev_reread_part(bdev);
], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_REREAD_PART], [
AC_MSG_CHECKING([whether blkdev_reread_part() is available])
ZFS_LINUX_TEST_RESULT([blkdev_reread_part], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLKDEV_REREAD_PART, 1,
[blkdev_reread_part() is available])

46
config/kernel-block-device-operations.m4
View File

@ -1,11 +1,8 @@
dnl #
dnl # 2.6.38 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
AC_MSG_CHECKING([whether bops->check_events() exists])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
ZFS_LINUX_TEST_SRC([block_device_operations_check_events], [
#include <linux/blkdev.h>
unsigned int blk_check_events(struct gendisk *disk,
@ -15,25 +12,25 @@ AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
bops __attribute__ ((unused)) = {
.check_events = blk_check_events,
};
],[
],[
], [], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
AC_MSG_CHECKING([whether bops->check_events() exists])
ZFS_LINUX_TEST_RESULT([block_device_operations_check_events], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS, 1,
[bops->check_events() exists])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
dnl #
dnl # 3.10.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
AC_MSG_CHECKING([whether bops->release() is void])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
ZFS_LINUX_TEST_SRC([block_device_operations_release_void], [
#include <linux/blkdev.h>
void blk_release(struct gendisk *g, fmode_t mode) { return; }
@ -45,13 +42,26 @@ AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
.ioctl = NULL,
.compat_ioctl = NULL,
};
],[
],[
AC_MSG_RESULT(void)
], [], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
AC_MSG_CHECKING([whether bops->release() is void])
ZFS_LINUX_TEST_RESULT([block_device_operations_release_void], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID, 1,
[bops->release() returns void])
],[
AC_MSG_RESULT(int)
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS], [
ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS
ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID
])
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS], [
ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS
ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID
])

13
config/kernel-clear-inode.m4
View File

@ -19,13 +19,18 @@ dnl # Therefore, to ensure we have the correct API we only allow the
dnl # clear_inode() compatibility code to be defined iff the evict_inode()
dnl # functionality is also detected.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CLEAR_INODE],
[AC_MSG_CHECKING([whether clear_inode() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_CLEAR_INODE], [
ZFS_LINUX_TEST_SRC([clear_inode], [
#include <linux/fs.h>
], [
clear_inode(NULL);
], [clear_inode], [fs/inode.c], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_CLEAR_INODE], [
AC_MSG_CHECKING([whether clear_inode() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([clear_inode],
[clear_inode], [fs/inode.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CLEAR_INODE, 1, [clear_inode() is available])
], [

15
config/kernel-commit-metadata.m4
View File

@ -4,19 +4,22 @@ dnl # Added eops->commit_metadata() callback to allow the underlying
dnl # filesystem to determine the most efficient way to commit the inode.
dnl # Prior to this the nfs server would issue an explicit fsync().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_COMMIT_METADATA], [
AC_MSG_CHECKING([whether eops->commit_metadata() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_COMMIT_METADATA], [
ZFS_LINUX_TEST_SRC([export_operations_commit_metadata], [
#include <linux/exportfs.h>
int commit_metadata(struct inode *inode) { return 0; }
static struct export_operations eops __attribute__ ((unused))={
.commit_metadata = commit_metadata,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_COMMIT_METADATA], [
AC_MSG_CHECKING([whether eops->commit_metadata() exists])
ZFS_LINUX_TEST_RESULT([export_operations_commit_metadata], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_COMMIT_METADATA, 1,
[eops->commit_metadata() exists])
[eops->commit_metadata() exists])
],[
AC_MSG_RESULT(no)
])

183
config/kernel-config-defined.m4 Normal file
View File

@ -0,0 +1,183 @@
dnl #
dnl # Certain kernel build options are not supported. These must be
dnl # detected at configure time and cause a build failure. Otherwise
dnl # modules may be successfully built that behave incorrectly.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_DEFINED], [
AS_IF([test "x$cross_compiling" != xyes], [
AC_RUN_IFELSE([
AC_LANG_PROGRAM([
#include "$LINUX/include/linux/license.h"
], [
return !license_is_gpl_compatible(
"$ZFS_META_LICENSE");
])
], [
AC_DEFINE([ZFS_IS_GPL_COMPATIBLE], [1],
[Define to 1 if GPL-only symbols can be used])
], [
])
])
ZFS_AC_KERNEL_SRC_CONFIG_THREAD_SIZE
ZFS_AC_KERNEL_SRC_CONFIG_DEBUG_LOCK_ALLOC
ZFS_AC_KERNEL_SRC_CONFIG_TRIM_UNUSED_KSYMS
ZFS_AC_KERNEL_SRC_CONFIG_ZLIB_INFLATE
ZFS_AC_KERNEL_SRC_CONFIG_ZLIB_DEFLATE
AC_MSG_CHECKING([for kernel config option compatibility])
ZFS_LINUX_TEST_COMPILE_ALL([config])
AC_MSG_RESULT([done])
ZFS_AC_KERNEL_CONFIG_THREAD_SIZE
ZFS_AC_KERNEL_CONFIG_DEBUG_LOCK_ALLOC
ZFS_AC_KERNEL_CONFIG_TRIM_UNUSED_KSYMS
ZFS_AC_KERNEL_CONFIG_ZLIB_INFLATE
ZFS_AC_KERNEL_CONFIG_ZLIB_DEFLATE
])
dnl #
dnl # Check configured THREAD_SIZE
dnl #
dnl # The stack size will vary by architecture, but as of Linux 3.15 on x86_64
dnl # the default thread stack size was increased to 16K from 8K. Therefore,
dnl # on newer kernels and some architectures stack usage optimizations can be
dnl # conditionally applied to improve performance without negatively impacting
dnl # stability.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_CONFIG_THREAD_SIZE], [
ZFS_LINUX_TEST_SRC([config_thread_size], [
#include <linux/module.h>
],[
#if (THREAD_SIZE < 16384)
#error "THREAD_SIZE is less than 16K"
#endif
])
])
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_THREAD_SIZE], [
AC_MSG_CHECKING([whether kernel was built with 16K or larger stacks])
ZFS_LINUX_TEST_RESULT([config_thread_size], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_LARGE_STACKS, 1, [kernel has large stacks])
],[
AC_MSG_RESULT([no])
])
])
dnl #
dnl # Check CONFIG_DEBUG_LOCK_ALLOC
dnl #
dnl # This is typically only set for debug kernels because it comes with
dnl # a performance penalty. However, when it is set it maps the non-GPL
dnl # symbol mutex_lock() to the GPL-only mutex_lock_nested() symbol.
dnl # This will cause a failure at link time which we'd rather know about
dnl # at compile time.
dnl #
dnl # Since we plan to pursue making mutex_lock_nested() a non-GPL symbol
dnl # with the upstream community we add a check to detect this case.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_CONFIG_DEBUG_LOCK_ALLOC], [
ZFS_LINUX_TEST_SRC([config_debug_lock_alloc], [
#include <linux/mutex.h>
],[
struct mutex lock;
mutex_init(&lock);
mutex_lock(&lock);
mutex_unlock(&lock);
], [], [$ZFS_META_LICENSE])
])
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_DEBUG_LOCK_ALLOC], [
AC_MSG_CHECKING([whether mutex_lock() is GPL-only])
ZFS_LINUX_TEST_RESULT([config_debug_lock_alloc], [
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_MSG_ERROR([
*** Kernel built with CONFIG_DEBUG_LOCK_ALLOC which is incompatible
*** with the CDDL license and will prevent the module linking stage
*** from succeeding. You must rebuild your kernel without this
*** option enabled.])
])
])
dnl #
dnl # Check CONFIG_TRIM_UNUSED_KSYMS
dnl #
dnl # Verify the kernel has CONFIG_TRIM_UNUSED_KSYMS disabled.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_CONFIG_TRIM_UNUSED_KSYMS], [
ZFS_LINUX_TEST_SRC([config_trim_unusued_ksyms], [
#if defined(CONFIG_TRIM_UNUSED_KSYMS)
#error CONFIG_TRIM_UNUSED_KSYMS not defined
#endif
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_TRIM_UNUSED_KSYMS], [
AC_MSG_CHECKING([whether CONFIG_TRIM_UNUSED_KSYM is disabled])
ZFS_LINUX_TEST_RESULT([config_trim_unusued_ksyms], [
AC_MSG_RESULT([yes])
],[
AC_MSG_RESULT([no])
AS_IF([test "x$enable_linux_builtin" != xyes], [
AC_MSG_ERROR([
*** This kernel has unused symbols trimming enabled, please disable.
*** Rebuild the kernel with CONFIG_TRIM_UNUSED_KSYMS=n set.])
])
])
])
dnl #
dnl # Check CONFIG_ZLIB_INFLATE
dnl #
dnl # Verify the kernel has CONFIG_ZLIB_INFLATE support enabled.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_CONFIG_ZLIB_INFLATE], [
ZFS_LINUX_TEST_SRC([config_zlib_inflate], [
#if !defined(CONFIG_ZLIB_INFLATE) && \
!defined(CONFIG_ZLIB_INFLATE_MODULE)
#error CONFIG_ZLIB_INFLATE not defined
#endif
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_ZLIB_INFLATE], [
AC_MSG_CHECKING([whether CONFIG_ZLIB_INFLATE is defined])
ZFS_LINUX_TEST_RESULT([config_zlib_inflate], [
AC_MSG_RESULT([yes])
],[
AC_MSG_RESULT([no])
AC_MSG_ERROR([
*** This kernel does not include the required zlib inflate support.
*** Rebuild the kernel with CONFIG_ZLIB_INFLATE=y|m set.])
])
])
dnl #
dnl # Check CONFIG_ZLIB_DEFLATE
dnl #
dnl # Verify the kernel has CONFIG_ZLIB_DEFLATE support enabled.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_CONFIG_ZLIB_DEFLATE], [
ZFS_LINUX_TEST_SRC([config_zlib_deflate], [
#if !defined(CONFIG_ZLIB_DEFLATE) && \
!defined(CONFIG_ZLIB_DEFLATE_MODULE)
#error CONFIG_ZLIB_DEFLATE not defined
#endif
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_ZLIB_DEFLATE], [
AC_MSG_CHECKING([whether CONFIG_ZLIB_DEFLATE is defined])
ZFS_LINUX_TEST_RESULT([config_zlib_deflate], [
AC_MSG_RESULT([yes])
],[
AC_MSG_RESULT([no])
AC_MSG_ERROR([
*** This kernel does not include the required zlib deflate support.
*** Rebuild the kernel with CONFIG_ZLIB_DEFLATE=y|m set.])
])
])

15
config/kernel-create-nameidata.m4
View File

@ -1,9 +1,8 @@
dnl #
dnl # 3.6 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CREATE_NAMEIDATA], [
AC_MSG_CHECKING([whether iops->create() passes nameidata])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_CREATE_NAMEIDATA], [
ZFS_LINUX_TEST_SRC([create_nameidata], [
#include <linux/fs.h>
#include <linux/sched.h>
@ -19,11 +18,15 @@ AC_DEFUN([ZFS_AC_KERNEL_CREATE_NAMEIDATA], [
iops __attribute__ ((unused)) = {
.create = inode_create,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_CREATE_NAMEIDATA], [
AC_MSG_CHECKING([whether iops->create() passes nameidata])
ZFS_LINUX_TEST_RESULT([create_nameidata], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CREATE_NAMEIDATA, 1,
[iops->create() passes nameidata])
[iops->create() passes nameidata])
],[
AC_MSG_RESULT(no)
])

12
config/kernel-ctl-table-name.m4
View File

@ -2,14 +2,18 @@ dnl #
dnl # 2.6.33 API change,
dnl # Removed .ctl_name from struct ctl_table.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CTL_NAME], [
AC_MSG_CHECKING([whether struct ctl_table has ctl_name])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_CTL_NAME], [
ZFS_LINUX_TEST_SRC([ctl_name], [
#include <linux/sysctl.h>
],[
struct ctl_table ctl __attribute__ ((unused));
ctl.ctl_name = 0;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_CTL_NAME], [
AC_MSG_CHECKING([whether struct ctl_table has ctl_name])
ZFS_LINUX_TEST_RESULT([ctl_name], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CTL_NAME, 1, [struct ctl_table has ctl_name])
],[

13
config/kernel-current-time.m4
View File

@ -2,14 +2,19 @@ dnl #
dnl # 4.9, current_time() added
dnl # 4.18, return type changed from timespec to timespec64
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CURRENT_TIME],
[AC_MSG_CHECKING([whether current_time() exists])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_CURRENT_TIME], [
ZFS_LINUX_TEST_SRC([current_time], [
#include <linux/fs.h>
], [
struct inode ip __attribute__ ((unused));
ip.i_atime = current_time(&ip);
], [current_time], [fs/inode.c], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_CURRENT_TIME], [
AC_MSG_CHECKING([whether current_time() exists])
ZFS_LINUX_TEST_RESULT_SYMBOL([current_time],
[current_time], [fs/inode.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CURRENT_TIME, 1, [current_time() exists])
], [

30
config/kernel-current_bio_tail.m4
View File

@ -4,30 +4,36 @@ dnl # current->bio_tail and current->bio_list were struct bio pointers prior to
dnl # Linux 2.6.34. They were refactored into a struct bio_list pointer called
dnl # current->bio_list in Linux 2.6.34.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_CURRENT_BIO_TAIL], [
ZFS_LINUX_TEST_SRC([current_bio_tail], [
#include <linux/sched.h>
], [
current->bio_tail = (struct bio **) NULL;
])
ZFS_LINUX_TEST_SRC([current_bio_list], [
#include <linux/sched.h>
], [
current->bio_list = (struct bio_list *) NULL;
])
])
AC_DEFUN([ZFS_AC_KERNEL_CURRENT_BIO_TAIL], [
AC_MSG_CHECKING([whether current->bio_tail exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/sched.h>
],[
current->bio_tail = (struct bio **) NULL;
],[
ZFS_LINUX_TEST_RESULT([current_bio_tail], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CURRENT_BIO_TAIL, 1,
[current->bio_tail exists])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether current->bio_list exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/sched.h>
],[
current->bio_list = (struct bio_list *) NULL;
],[
ZFS_LINUX_TEST_RESULT([current_bio_list], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CURRENT_BIO_LIST, 1,
[current->bio_list exists])
],[
AC_MSG_ERROR(no - Please file a bug report at
https://github.com/zfsonlinux/zfs/issues/new)
ZFS_LINUX_TEST_ERROR([bio_list])
])
])
])

17
config/kernel-d-make-root.m4
View File

@ -1,17 +0,0 @@
dnl #
dnl # 3.4.0 API change
dnl # Added d_make_root() to replace previous d_alloc_root() function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_D_MAKE_ROOT],
[AC_MSG_CHECKING([whether d_make_root() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/dcache.h>
], [
d_make_root(NULL);
], [d_make_root], [fs/dcache.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_D_MAKE_ROOT, 1, [d_make_root() is available])
], [
AC_MSG_RESULT(no)
])
])

18
config/kernel-d-obtain-alias.m4
View File

@ -1,18 +0,0 @@
dnl #
dnl # 2.6.28 API change
dnl # Added d_obtain_alias() helper function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_D_OBTAIN_ALIAS],
[AC_MSG_CHECKING([whether d_obtain_alias() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/dcache.h>
], [
d_obtain_alias(NULL);
], [d_obtain_alias], [fs/dcache.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
[d_obtain_alias() is available])
], [
AC_MSG_RESULT(no)
])
])

19
config/kernel-d-prune-aliases.m4
View File

@ -1,19 +0,0 @@
dnl #
dnl # 2.6.12 API change
dnl # d_prune_aliases() helper function available.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_D_PRUNE_ALIASES],
[AC_MSG_CHECKING([whether d_prune_aliases() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/dcache.h>
], [
struct inode *ip = NULL;
d_prune_aliases(ip);
], [d_prune_aliases], [fs/dcache.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_D_PRUNE_ALIASES, 1,
[d_prune_aliases() is available])
], [
AC_MSG_RESULT(no)
])
])

8
config/kernel-declare-event-class.m4
View File

@ -2,13 +2,10 @@ dnl #
dnl # Ensure the DECLARE_EVENT_CLASS macro is available to non-GPL modules.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_DECLARE_EVENT_CLASS], [
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-I\$(src)"
AC_MSG_CHECKING([whether DECLARE_EVENT_CLASS() is available])
ZFS_LINUX_TRY_COMPILE_HEADER([
#include <linux/module.h>
MODULE_LICENSE(ZFS_META_LICENSE);
MODULE_LICENSE("$ZFS_META_LICENSE");
#define CREATE_TRACE_POINTS
#include "conftest.h"
@ -18,7 +15,7 @@ AC_DEFUN([ZFS_AC_KERNEL_DECLARE_EVENT_CLASS], [
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_DECLARE_EVENT_CLASS, 1,
[DECLARE_EVENT_CLASS() is available])
[DECLARE_EVENT_CLASS() is available])
],[
AC_MSG_RESULT(no)
],[
@ -55,5 +52,4 @@ AC_DEFUN([ZFS_AC_KERNEL_DECLARE_EVENT_CLASS], [
#define TRACE_INCLUDE_FILE conftest
#include <trace/define_trace.h>
])
EXTRA_KCFLAGS="$tmp_flags"
])

174
config/kernel-dentry-operations.m4
View File

@ -1,9 +1,103 @@
dnl #
dnl # 3.4.0 API change
dnl # Added d_make_root() to replace previous d_alloc_root() function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_D_MAKE_ROOT], [
ZFS_LINUX_TEST_SRC([d_make_root], [
#include <linux/dcache.h>
], [
d_make_root(NULL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_D_MAKE_ROOT], [
AC_MSG_CHECKING([whether d_make_root() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([d_make_root],
[d_make_root], [fs/dcache.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_D_MAKE_ROOT, 1, [d_make_root() is available])
], [
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.28 API change
dnl # Added d_obtain_alias() helper function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_D_OBTAIN_ALIAS], [
ZFS_LINUX_TEST_SRC([d_obtain_alias], [
#include <linux/dcache.h>
], [
d_obtain_alias(NULL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_D_OBTAIN_ALIAS], [
AC_MSG_CHECKING([whether d_obtain_alias() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([d_obtain_alias],
[d_obtain_alias], [fs/dcache.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
[d_obtain_alias() is available])
], [
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.12 API change
dnl # d_prune_aliases() helper function available.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_D_PRUNE_ALIASES], [
ZFS_LINUX_TEST_SRC([d_prune_aliases], [
#include <linux/dcache.h>
], [
struct inode *ip = NULL;
d_prune_aliases(ip);
])
])
AC_DEFUN([ZFS_AC_KERNEL_D_PRUNE_ALIASES], [
AC_MSG_CHECKING([whether d_prune_aliases() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([d_prune_aliases],
[d_prune_aliases], [fs/dcache.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_D_PRUNE_ALIASES, 1,
[d_prune_aliases() is available])
], [
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.38 API change
dnl # Added d_set_d_op() helper function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_D_SET_D_OP], [
ZFS_LINUX_TEST_SRC([d_set_d_op], [
#include <linux/dcache.h>
], [
d_set_d_op(NULL, NULL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_D_SET_D_OP], [
AC_MSG_CHECKING([whether d_set_d_op() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([d_set_d_op],
[d_set_d_op], [fs/dcache.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_D_SET_D_OP, 1, [d_set_d_op() is available])
], [
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 3.6 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_D_REVALIDATE_NAMEIDATA], [
AC_MSG_CHECKING([whether dops->d_revalidate() takes struct nameidata])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_D_REVALIDATE_NAMEIDATA], [
ZFS_LINUX_TEST_SRC([dentry_operations_revalidate], [
#include <linux/dcache.h>
#include <linux/sched.h>
@ -14,11 +108,15 @@ AC_DEFUN([ZFS_AC_KERNEL_D_REVALIDATE_NAMEIDATA], [
dops __attribute__ ((unused)) = {
.d_revalidate = revalidate,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_D_REVALIDATE_NAMEIDATA], [
AC_MSG_CHECKING([whether dops->d_revalidate() takes struct nameidata])
ZFS_LINUX_TEST_RESULT([dentry_operations_revalidate], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_D_REVALIDATE_NAMEIDATA, 1,
[dops->d_revalidate() operation takes nameidata])
[dops->d_revalidate() operation takes nameidata])
],[
AC_MSG_RESULT(no)
])
@ -28,9 +126,8 @@ dnl #
dnl # 2.6.30 API change
dnl # The 'struct dentry_operations' was constified in the dentry structure.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CONST_DENTRY_OPERATIONS], [
AC_MSG_CHECKING([whether dentry uses const struct dentry_operations])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_CONST_DENTRY_OPERATIONS], [
ZFS_LINUX_TEST_SRC([dentry_operations_const], [
#include <linux/dcache.h>
const struct dentry_operations test_d_op = {
@ -38,32 +135,17 @@ AC_DEFUN([ZFS_AC_KERNEL_CONST_DENTRY_OPERATIONS], [
};
],[
struct dentry d __attribute__ ((unused));
d.d_op = &test_d_op;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CONST_DENTRY_OPERATIONS, 1,
[dentry uses const struct dentry_operations])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.38 API change
dnl # Added d_set_d_op() helper function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_D_SET_D_OP],
[AC_MSG_CHECKING([whether d_set_d_op() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/dcache.h>
], [
d_set_d_op(NULL, NULL);
], [d_set_d_op], [fs/dcache.c], [
AC_DEFUN([ZFS_AC_KERNEL_CONST_DENTRY_OPERATIONS], [
AC_MSG_CHECKING([whether dentry uses const struct dentry_operations])
ZFS_LINUX_TEST_RESULT([dentry_operations_const], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_D_SET_D_OP, 1,
[d_set_d_op() is available])
], [
AC_DEFINE(HAVE_CONST_DENTRY_OPERATIONS, 1,
[dentry uses const struct dentry_operations])
],[
AC_MSG_RESULT(no)
])
])
@ -72,17 +154,41 @@ dnl #
dnl # 2.6.38 API change
dnl # Added sb->s_d_op default dentry_operations member
dnl #
AC_DEFUN([ZFS_AC_KERNEL_S_D_OP],
[AC_MSG_CHECKING([whether super_block has s_d_op])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_S_D_OP], [
ZFS_LINUX_TEST_SRC([super_block_s_d_op], [
#include <linux/fs.h>
],[
struct super_block sb __attribute__ ((unused));
sb.s_d_op = NULL;
], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_S_D_OP], [
AC_MSG_CHECKING([whether super_block has s_d_op])
ZFS_LINUX_TEST_RESULT([super_block_s_d_op], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_S_D_OP, 1, [struct super_block has s_d_op])
], [
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_DENTRY], [
ZFS_AC_KERNEL_SRC_D_MAKE_ROOT
ZFS_AC_KERNEL_SRC_D_OBTAIN_ALIAS
ZFS_AC_KERNEL_SRC_D_PRUNE_ALIASES
ZFS_AC_KERNEL_SRC_D_SET_D_OP
ZFS_AC_KERNEL_SRC_D_REVALIDATE_NAMEIDATA
ZFS_AC_KERNEL_SRC_CONST_DENTRY_OPERATIONS
ZFS_AC_KERNEL_SRC_S_D_OP
])
AC_DEFUN([ZFS_AC_KERNEL_DENTRY], [
ZFS_AC_KERNEL_D_MAKE_ROOT
ZFS_AC_KERNEL_D_OBTAIN_ALIAS
ZFS_AC_KERNEL_D_PRUNE_ALIASES
ZFS_AC_KERNEL_D_SET_D_OP
ZFS_AC_KERNEL_D_REVALIDATE_NAMEIDATA
ZFS_AC_KERNEL_CONST_DENTRY_OPERATIONS
ZFS_AC_KERNEL_S_D_OP
])

15
config/kernel-dirty-inode.m4
View File

@ -4,9 +4,8 @@ dnl # The sops->dirty_inode() callbacks were updated to take a flags
dnl # argument. This allows the greater control over whether the
dnl # filesystem needs to push out a transaction or not.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_DIRTY_INODE_WITH_FLAGS], [
AC_MSG_CHECKING([whether sops->dirty_inode() wants flags])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_DIRTY_INODE], [
ZFS_LINUX_TEST_SRC([dirty_inode_with_flags], [
#include <linux/fs.h>
void dirty_inode(struct inode *a, int b) { return; }
@ -15,11 +14,15 @@ AC_DEFUN([ZFS_AC_KERNEL_DIRTY_INODE_WITH_FLAGS], [
sops __attribute__ ((unused)) = {
.dirty_inode = dirty_inode,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_DIRTY_INODE], [
AC_MSG_CHECKING([whether sops->dirty_inode() wants flags])
ZFS_LINUX_TEST_RESULT([dirty_inode_with_flags], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_DIRTY_INODE_WITH_FLAGS, 1,
[sops->dirty_inode() wants flags])
[sops->dirty_inode() wants flags])
],[
AC_MSG_RESULT([no])
])

15
config/kernel-discard-granularity.m4
View File

@ -2,18 +2,21 @@ dnl #
dnl # 2.6.33 API change
dnl # Discard granularity and alignment restrictions may now be set.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_DISCARD_GRANULARITY], [
AC_MSG_CHECKING([whether ql->discard_granularity is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_DISCARD_GRANULARITY], [
ZFS_LINUX_TEST_SRC([discard_granularity], [
#include <linux/blkdev.h>
],[
struct queue_limits ql __attribute__ ((unused));
ql.discard_granularity = 0;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_DISCARD_GRANULARITY], [
AC_MSG_CHECKING([whether ql->discard_granularity is available])
ZFS_LINUX_TEST_RESULT([discard_granularity], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_DISCARD_GRANULARITY, 1,
[ql->discard_granularity is available])
[ql->discard_granularity is available])
],[
AC_MSG_RESULT(no)
])

21
config/kernel-elevator-change.m4
View File

@ -2,24 +2,25 @@ dnl #
dnl # 2.6.36 API, exported elevator_change() symbol
dnl # 4.12 API, removed elevator_change() symbol
dnl #
AC_DEFUN([ZFS_AC_KERNEL_ELEVATOR_CHANGE], [
AC_MSG_CHECKING([whether elevator_change() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_ELEVATOR_CHANGE], [
ZFS_LINUX_TEST_SRC([elevator_change], [
#include <linux/blkdev.h>
#include <linux/elevator.h>
],[
int ret;
struct request_queue *q = NULL;
char *elevator = NULL;
ret = elevator_change(q, elevator);
],[
int error __attribute__ ((unused)) =
elevator_change(q, elevator);
])
])
AC_DEFUN([ZFS_AC_KERNEL_ELEVATOR_CHANGE], [
AC_MSG_CHECKING([whether elevator_change() is available])
ZFS_LINUX_TEST_RESULT([elevator_change], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ELEVATOR_CHANGE, 1,
[elevator_change() is available])
[elevator_change() is available])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

15
config/kernel-encode-fh-inode.m4
View File

@ -4,20 +4,23 @@ dnl # torvalds/linux@b0b0382bb4904965a9e9fca77ad87514dfda0d1c changed the
dnl # ->encode_fh() callback to pass the child inode and its parents inode
dnl # rather than a dentry and a boolean saying whether we want the parent.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE], [
AC_MSG_CHECKING([whether eops->encode_fh() wants inode])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_ENCODE_FH_WITH_INODE], [
ZFS_LINUX_TEST_SRC([export_operations_encode_fh], [
#include <linux/exportfs.h>
int encode_fh(struct inode *inode, __u32 *fh, int *max_len,
struct inode *parent) { return 0; }
static struct export_operations eops __attribute__ ((unused))={
.encode_fh = encode_fh,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE], [
AC_MSG_CHECKING([whether eops->encode_fh() wants inode])
ZFS_LINUX_TEST_RESULT([export_operations_encode_fh], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ENCODE_FH_WITH_INODE, 1,
[eops->encode_fh() wants child and parent inodes])
[eops->encode_fh() wants child and parent inodes])
],[
AC_MSG_RESULT(no)
])

13
config/kernel-evict-inode.m4
View File

@ -3,16 +3,19 @@ dnl # 2.6.36 API change
dnl # The sops->delete_inode() and sops->clear_inode() callbacks have
dnl # replaced by a single sops->evict_inode() callback.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_EVICT_INODE], [
AC_MSG_CHECKING([whether sops->evict_inode() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_EVICT_INODE], [
ZFS_LINUX_TEST_SRC([evict_inode], [
#include <linux/fs.h>
void evict_inode (struct inode * t) { return; }
static struct super_operations sops __attribute__ ((unused)) = {
.evict_inode = evict_inode,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_EVICT_INODE], [
AC_MSG_CHECKING([whether sops->evict_inode() exists])
ZFS_LINUX_TEST_RESULT([evict_inode], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_EVICT_INODE, 1, [sops->evict_inode() exists])
],[

19
config/kernel-fallocate-pax.m4
View File

@ -1,19 +0,0 @@
dnl #
dnl # PaX Linux 2.6.38 - 3.x API
dnl #
AC_DEFUN([ZFS_AC_PAX_KERNEL_FILE_FALLOCATE], [
AC_MSG_CHECKING([whether fops->fallocate() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
struct file_operations_no_const fops __attribute__ ((unused)) = {
.fallocate = fallocate,
};
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
],[
AC_MSG_RESULT(no)
])
])

50
config/kernel-fallocate.m4
View File

@ -1,9 +1,11 @@
dnl #
dnl # Linux 2.6.38 - 3.x API
dnl # The fallocate callback was moved from the inode_operations
dnl # structure to the file_operations structure.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FILE_FALLOCATE], [
AC_MSG_CHECKING([whether fops->fallocate() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_FALLOCATE], [
dnl # Linux 2.6.38 - 3.x API
ZFS_LINUX_TEST_SRC([file_fallocate], [
#include <linux/fs.h>
long test_fallocate(struct file *file, int mode,
@ -13,21 +15,10 @@ AC_DEFUN([ZFS_AC_KERNEL_FILE_FALLOCATE], [
fops __attribute__ ((unused)) = {
.fallocate = test_fallocate,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
],[
AC_MSG_RESULT(no)
])
])
], [])
dnl #
dnl # Linux 2.6.x - 2.6.37 API
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_FALLOCATE], [
AC_MSG_CHECKING([whether iops->fallocate() exists])
ZFS_LINUX_TRY_COMPILE([
dnl # Linux 2.6.x - 2.6.37 API
ZFS_LINUX_TEST_SRC([inode_fallocate], [
#include <linux/fs.h>
long test_fallocate(struct inode *inode, int mode,
@ -37,20 +28,23 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_FALLOCATE], [
fops __attribute__ ((unused)) = {
.fallocate = test_fallocate,
};
], [])
])
AC_DEFUN([ZFS_AC_KERNEL_FALLOCATE], [
AC_MSG_CHECKING([whether fops->fallocate() exists])
ZFS_LINUX_TEST_RESULT([file_fallocate], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
],[
],[
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether iops->fallocate() exists])
ZFS_LINUX_TEST_RESULT([inode_fallocate], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_FALLOCATE, 1, [fops->fallocate() exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # The fallocate callback was moved from the inode_operations
dnl # structure to the file_operations structure.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FALLOCATE], [
ZFS_AC_KERNEL_FILE_FALLOCATE
ZFS_AC_KERNEL_INODE_FALLOCATE
])

12
config/kernel-file-dentry.m4
View File

@ -4,14 +4,18 @@ dnl # struct access file->f_path.dentry was replaced by accessor function
dnl # since fix torvalds/linux@4bacc9c9234c ("overlayfs: Make f_path always
dnl # point to the overlay and f_inode to the underlay").
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FILE_DENTRY], [
AC_MSG_CHECKING([whether file_dentry() is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_FILE_DENTRY], [
ZFS_LINUX_TEST_SRC([file_dentry], [
#include <linux/fs.h>
],[
struct file *f = NULL;
file_dentry(f);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_FILE_DENTRY], [
AC_MSG_CHECKING([whether file_dentry() is available])
ZFS_LINUX_TEST_RESULT([file_dentry], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FILE_DENTRY, 1, [file_dentry() is available])
],[

12
config/kernel-file-inode.m4
View File

@ -3,14 +3,18 @@ dnl # 3.19 API change
dnl # struct access f->f_dentry->d_inode was replaced by accessor function
dnl # file_inode(f)
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FILE_INODE], [
AC_MSG_CHECKING([whether file_inode() is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_FILE_INODE], [
ZFS_LINUX_TEST_SRC([file_inode], [
#include <linux/fs.h>
],[
struct file *f = NULL;
file_inode(f);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_FILE_INODE], [
AC_MSG_CHECKING([whether file_inode() is available])
ZFS_LINUX_TEST_RESULT([file_inode], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FILE_INODE, 1, [file_inode() is available])
],[

15
config/kernel-fmode-t.m4
View File

@ -2,16 +2,19 @@ dnl #
dnl # 2.6.28 API change,
dnl # check if fmode_t typedef is defined
dnl #
AC_DEFUN([ZFS_AC_KERNEL_TYPE_FMODE_T],
[AC_MSG_CHECKING([whether kernel defines fmode_t])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_FMODE_T], [
ZFS_LINUX_TEST_SRC([type_fmode_t], [
#include <linux/types.h>
],[
fmode_t *ptr __attribute__ ((unused));
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_FMODE_T], [
AC_MSG_CHECKING([whether kernel defines fmode_t])
ZFS_LINUX_TEST_RESULT([type_fmode_t], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_FMODE_T, 1,
[kernel defines fmode_t])
AC_DEFINE(HAVE_FMODE_T, 1, [kernel defines fmode_t])
],[
AC_MSG_RESULT([no])
])

12
config/kernel-follow-down-one.m4
View File

@ -3,14 +3,18 @@ dnl # 2.6.38 API change
dnl # follow_down() renamed follow_down_one(). The original follow_down()
dnl # symbol still exists but will traverse down all the layers.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FOLLOW_DOWN_ONE], [
AC_MSG_CHECKING([whether follow_down_one() is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_FOLLOW_DOWN_ONE], [
ZFS_LINUX_TEST_SRC([follow_down_one], [
#include <linux/namei.h>
],[
struct path *p = NULL;
follow_down_one(p);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_FOLLOW_DOWN_ONE], [
AC_MSG_CHECKING([whether follow_down_one() is available])
ZFS_LINUX_TEST_RESULT([follow_down_one], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FOLLOW_DOWN_ONE, 1,
[follow_down_one() is available])

99
config/kernel-fpu.m4
View File

@ -18,8 +18,11 @@ dnl #
dnl # Pre-4.2: Use kernel_fpu_{begin,end}()
dnl # HAVE_KERNEL_FPU & KERNEL_EXPORTS_X86_FPU
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FPU], [
AC_MSG_CHECKING([which kernel_fpu header to use])
dnl # N.B. The header check is performed before all other checks since it
dnl # depends on HAVE_KERNEL_FPU_API_HEADER being set in confdefs.h.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FPU_HEADER], [
AC_MSG_CHECKING([whether fpu headers are available])
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
#include <asm/fpu/api.h>
@ -31,66 +34,88 @@ AC_DEFUN([ZFS_AC_KERNEL_FPU], [
],[
AC_MSG_RESULT(i387.h & xcr.h)
])
])
AC_MSG_CHECKING([which kernel_fpu function to use])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/module.h>
AC_DEFUN([ZFS_AC_KERNEL_SRC_FPU], [
ZFS_LINUX_TEST_SRC([kernel_fpu], [
#ifdef HAVE_KERNEL_FPU_API_HEADER
#include <asm/fpu/api.h>
#else
#include <asm/i387.h>
#include <asm/xcr.h>
#endif
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
], [
kernel_fpu_begin();
kernel_fpu_end();
], [kernel_fpu_begin], [arch/x86/kernel/fpu/core.c], [
], [], [$ZFS_META_LICENSE])
ZFS_LINUX_TEST_SRC([__kernel_fpu], [
#ifdef HAVE_KERNEL_FPU_API_HEADER
#include <asm/fpu/api.h>
#else
#include <asm/i387.h>
#include <asm/xcr.h>
#endif
], [
__kernel_fpu_begin();
__kernel_fpu_end();
], [], [$ZFS_META_LICENSE])
ZFS_LINUX_TEST_SRC([fpu_initialized], [
#include <linux/module.h>
#include <linux/sched.h>
],[
struct fpu *fpu = &current->thread.fpu;
if (fpu->initialized) { return (0); };
])
ZFS_LINUX_TEST_SRC([tif_need_fpu_load], [
#include <linux/module.h>
#include <asm/thread_info.h>
#if !defined(TIF_NEED_FPU_LOAD)
#error "TIF_NEED_FPU_LOAD undefined"
#endif
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_FPU], [
dnl #
dnl # Legacy kernel
dnl #
AC_MSG_CHECKING([whether kernel fpu is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([kernel_fpu_license],
[kernel_fpu_begin], [arch/x86/kernel/fpu/core.c], [
AC_MSG_RESULT(kernel_fpu_*)
AC_DEFINE(HAVE_KERNEL_FPU, 1,
[kernel has kernel_fpu_* functions])
AC_DEFINE(KERNEL_EXPORTS_X86_FPU, 1,
[kernel exports FPU functions])
],[
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/module.h>
#ifdef HAVE_KERNEL_FPU_API_HEADER
#include <asm/fpu/api.h>
#else
#include <asm/i387.h>
#include <asm/xcr.h>
#endif
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
__kernel_fpu_begin();
__kernel_fpu_end();
], [__kernel_fpu_begin], [arch/x86/kernel/fpu/core.c arch/x86/kernel/i387.c], [
dnl #
dnl # Linux 4.2 kernel
dnl #
ZFS_LINUX_TEST_RESULT_SYMBOL([__kernel_fpu_license],
[__kernel_fpu_begin],
[arch/x86/kernel/fpu/core.c arch/x86/kernel/i387.c], [
AC_MSG_RESULT(__kernel_fpu_*)
AC_DEFINE(HAVE_UNDERSCORE_KERNEL_FPU, 1,
[kernel has __kernel_fpu_* functions])
AC_DEFINE(KERNEL_EXPORTS_X86_FPU, 1,
[kernel exports FPU functions])
],[
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
#include <linux/sched.h>
],[
struct fpu *fpu = &current->thread.fpu;
if (fpu->initialized) { return (0); };
],[
dnl #
dnl # Linux 5.0 kernel
dnl #
ZFS_LINUX_TEST_RESULT([fpu_initialized], [
AC_MSG_RESULT(fpu.initialized)
AC_DEFINE(HAVE_KERNEL_FPU_INITIALIZED, 1,
[kernel fpu.initialized exists])
],[
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
#include <asm/thread_info.h>
#if !defined(TIF_NEED_FPU_LOAD)
#error "TIF_NEED_FPU_LOAD undefined"
#endif
],[
],[
dnl #
dnl # Linux 5.2 kernel
dnl #
ZFS_LINUX_TEST_RESULT([tif_need_fpu_load], [
AC_MSG_RESULT(TIF_NEED_FPU_LOAD)
AC_DEFINE(
HAVE_KERNEL_TIF_NEED_FPU_LOAD, 1,

13
config/kernel-fst-mount.m4
View File

@ -3,9 +3,8 @@ dnl # 2.6.38 API change
dnl # The .get_sb callback has been replaced by a .mount callback
dnl # in the file_system_type structure.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FST_MOUNT], [
AC_MSG_CHECKING([whether fst->mount() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_FST_MOUNT], [
ZFS_LINUX_TEST_SRC([file_system_type_mount], [
#include <linux/fs.h>
static struct dentry *
@ -18,8 +17,12 @@ AC_DEFUN([ZFS_AC_KERNEL_FST_MOUNT], [
static struct file_system_type fst __attribute__ ((unused)) = {
.mount = mount,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_FST_MOUNT], [
AC_MSG_CHECKING([whether fst->mount() exists])
ZFS_LINUX_TEST_RESULT([file_system_type_mount], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FST_MOUNT, 1, [fst->mount() exists])
],[

83
config/kernel-fsync.m4
View File

@ -1,8 +1,8 @@
dnl #
dnl # Linux 2.6.x - 2.6.34 API
dnl # Check file_operations->fsync interface.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITH_DENTRY], [
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_FSYNC], [
ZFS_LINUX_TEST_SRC([fsync_with_dentry], [
#include <linux/fs.h>
int test_fsync(struct file *f, struct dentry *dentry, int x)
@ -12,20 +12,9 @@ AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITH_DENTRY], [
fops __attribute__ ((unused)) = {
.fsync = test_fsync,
};
],[
],[
AC_MSG_RESULT([dentry])
AC_DEFINE(HAVE_FSYNC_WITH_DENTRY, 1,
[fops->fsync() with dentry])
],[
])
])
],[])
dnl #
dnl # Linux 2.6.35 - Linux 3.0 API
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITHOUT_DENTRY], [
ZFS_LINUX_TRY_COMPILE([
ZFS_LINUX_TEST_SRC([fsync_without_dentry], [
#include <linux/fs.h>
int test_fsync(struct file *f, int x) { return 0; }
@ -34,20 +23,9 @@ AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITHOUT_DENTRY], [
fops __attribute__ ((unused)) = {
.fsync = test_fsync,
};
],[
],[
AC_MSG_RESULT([no dentry])
AC_DEFINE(HAVE_FSYNC_WITHOUT_DENTRY, 1,
[fops->fsync() without dentry])
],[
])
])
],[])
dnl #
dnl # Linux 3.1 - 3.x API
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FSYNC_RANGE], [
ZFS_LINUX_TRY_COMPILE([
ZFS_LINUX_TEST_SRC([fsync_range], [
#include <linux/fs.h>
int test_fsync(struct file *f, loff_t a, loff_t b, int c)
@ -57,18 +35,43 @@ AC_DEFUN([ZFS_AC_KERNEL_FSYNC_RANGE], [
fops __attribute__ ((unused)) = {
.fsync = test_fsync,
};
],[
],[
AC_MSG_RESULT([range])
AC_DEFINE(HAVE_FSYNC_RANGE, 1,
[fops->fsync() with range])
],[
])
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_FSYNC], [
AC_MSG_CHECKING([whether fops->fsync() wants])
ZFS_AC_KERNEL_FSYNC_WITH_DENTRY
ZFS_AC_KERNEL_FSYNC_WITHOUT_DENTRY
ZFS_AC_KERNEL_FSYNC_RANGE
dnl #
dnl # Linux 2.6.x - 2.6.34 API
dnl #
AC_MSG_CHECKING([whether fops->fsync() wants dentry])
ZFS_LINUX_TEST_RESULT([fsync_with_dentry], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_FSYNC_WITH_DENTRY, 1,
[fops->fsync() with dentry])
],[
AC_MSG_RESULT([no])
dnl #
dnl # Linux 2.6.35 - Linux 3.0 API
dnl #
AC_MSG_CHECKING([whether fops->fsync() wants no dentry])
ZFS_LINUX_TEST_RESULT([fsync_without_dentry], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_FSYNC_WITHOUT_DENTRY, 1,
[fops->fsync() without dentry])
],[
AC_MSG_RESULT([no])
dnl #
dnl # Linux 3.1 - 3.x API
dnl #
AC_MSG_CHECKING([whether fops->fsync() wants range])
ZFS_LINUX_TEST_RESULT([fsync_range], [
AC_MSG_RESULT([range])
AC_DEFINE(HAVE_FSYNC_RANGE, 1,
[fops->fsync() with range])
],[
ZFS_LINUX_TEST_ERROR([fops->fsync])
])
])
])
])

69
config/kernel-generic_io_acct.m4
View File

@ -1,12 +1,8 @@
dnl #
dnl # 3.19 API addition
dnl # Check for generic io accounting interface.
dnl #
dnl # torvalds/linux@394ffa503bc40e32d7f54a9b817264e81ce131b4 allows us to
dnl # increment iostat counters without generic_make_request().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_IO_ACCT_3ARG], [
AC_MSG_CHECKING([whether 3 arg generic IO accounting symbols are available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_IO_ACCT], [
ZFS_LINUX_TEST_SRC([generic_acct_3args], [
#include <linux/bio.h>
void (*generic_start_io_acct_f)(int, unsigned long,
@ -16,24 +12,9 @@ AC_DEFUN([ZFS_AC_KERNEL_GENERIC_IO_ACCT_3ARG], [
], [
generic_start_io_acct(0, 0, NULL);
generic_end_io_acct(0, NULL, 0);
], [generic_start_io_acct], [block/bio.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GENERIC_IO_ACCT_3ARG, 1,
[generic_start_io_acct()/generic_end_io_acct() available])
], [
AC_MSG_RESULT(no)
])
])
dnl #
dnl # Linux 4.14 API,
dnl #
dnl # generic_start_io_acct/generic_end_io_acct now require request_queue to be
dnl # provided. No functional changes, but preparation for inflight accounting
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_IO_ACCT_4ARG], [
AC_MSG_CHECKING([whether 4 arg generic IO accounting symbols are available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
ZFS_LINUX_TEST_SRC([generic_acct_4args], [
#include <linux/bio.h>
void (*generic_start_io_acct_f)(struct request_queue *, int,
@ -43,11 +24,41 @@ AC_DEFUN([ZFS_AC_KERNEL_GENERIC_IO_ACCT_4ARG], [
], [
generic_start_io_acct(NULL, 0, 0, NULL);
generic_end_io_acct(NULL, 0, NULL, 0);
], [generic_start_io_acct], [block/bio.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GENERIC_IO_ACCT_4ARG, 1,
[generic_start_io_acct()/generic_end_io_acct() 4 arg available])
], [
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_IO_ACCT], [
dnl #
dnl # 3.19 API addition
dnl #
dnl # torvalds/linux@394ffa50 allows us to increment iostat
dnl # counters without generic_make_request().
dnl #
AC_MSG_CHECKING([whether generic IO accounting wants 3 args])
ZFS_LINUX_TEST_RESULT_SYMBOL([generic_acct_3args],
[generic_start_io_acct], [block/bio.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GENERIC_IO_ACCT_3ARG, 1,
[generic_start_io_acct()/generic_end_io_acct() available])
], [
AC_MSG_RESULT(no)
dnl #
dnl # Linux 4.14 API,
dnl #
dnl # generic_start_io_acct/generic_end_io_acct now require
dnl # request_queue to be provided. No functional changes,
dnl # but preparation for inflight accounting.
dnl #
AC_MSG_CHECKING([whether generic IO accounting wants 4 args])
ZFS_LINUX_TEST_RESULT_SYMBOL([generic_acct_4args],
[generic_start_io_acct], [block/bio.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GENERIC_IO_ACCT_4ARG, 1,
[generic_start_io_acct()/generic_end_io_acct() ]
[4 arg available])
], [
AC_MSG_RESULT(no)
])
])
])

15
config/kernel-generic_readlink.m4
View File

@ -4,18 +4,21 @@ dnl #
dnl # NULL inode_operations.readlink implies generic_readlink(), which
dnl # has been made static.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL], [
AC_MSG_CHECKING([whether generic_readlink is global])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_READLINK_GLOBAL], [
ZFS_LINUX_TEST_SRC([generic_readlink_global], [
#include <linux/fs.h>
],[
int i __attribute__ ((unused));
i = generic_readlink(NULL, NULL, 0);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL], [
AC_MSG_CHECKING([whether generic_readlink is global])
ZFS_LINUX_TEST_RESULT([generic_readlink_global], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_GENERIC_READLINK, 1,
[generic_readlink is global])
[generic_readlink is global])
],[
AC_MSG_RESULT([no])
])

13
config/kernel-get-disk-and-module.m4
View File

@ -2,14 +2,19 @@ dnl #
dnl # 4.16 API change
dnl # Verify if get_disk_and_module() symbol is available.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GET_DISK_AND_MODULE],
[AC_MSG_CHECKING([whether get_disk_and_module() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_GET_DISK_AND_MODULE], [
ZFS_LINUX_TEST_SRC([get_disk_and_module], [
#include <linux/genhd.h>
], [
struct gendisk *disk = NULL;
(void) get_disk_and_module(disk);
], [get_disk_and_module], [block/genhd.c], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_GET_DISK_AND_MODULE], [
AC_MSG_CHECKING([whether get_disk_and_module() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([get_disk_and_module],
[get_disk_and_module], [block/genhd.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GET_DISK_AND_MODULE,
1, [get_disk_and_module() is available])

18
config/kernel-get-disk-ro.m4
View File

@ -1,21 +1,21 @@
dnl #
dnl # 2.6.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GET_DISK_RO], [
AC_MSG_CHECKING([whether get_disk_ro() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_GET_DISK_RO], [
ZFS_LINUX_TEST_SRC([get_disk_ro], [
#include <linux/blkdev.h>
],[
struct gendisk *disk = NULL;
(void) get_disk_ro(disk);
],[
], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_GET_DISK_RO], [
AC_MSG_CHECKING([whether get_disk_ro() is available])
ZFS_LINUX_TEST_RESULT([get_disk_ro], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GET_DISK_RO, 1,
[blk_disk_ro() is available])
AC_DEFINE(HAVE_GET_DISK_RO, 1, [blk_disk_ro() is available])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

128
config/kernel-get-link.m4
View File

@ -1,13 +1,29 @@
dnl #
dnl # Supported get_link() interfaces checked newest to oldest.
dnl # Note this interface used to be named follow_link.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FOLLOW_LINK], [
dnl #
dnl # 4.2 API change
dnl # - This kernel retired the nameidata structure.
dnl #
AC_MSG_CHECKING([whether iops->follow_link() passes cookie])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_GET_LINK], [
ZFS_LINUX_TEST_SRC([inode_operations_get_link], [
#include <linux/fs.h>
const char *get_link(struct dentry *de, struct inode *ip,
struct delayed_call *done) { return "symlink"; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.get_link = get_link,
};
],[])
ZFS_LINUX_TEST_SRC([inode_operations_get_link_cookie], [
#include <linux/fs.h>
const char *get_link(struct dentry *de, struct
inode *ip, void **cookie) { return "symlink"; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.get_link = get_link,
};
],[])
ZFS_LINUX_TEST_SRC([inode_operations_follow_link], [
#include <linux/fs.h>
const char *follow_link(struct dentry *de,
void **cookie) { return "symlink"; }
@ -15,35 +31,17 @@ AC_DEFUN([ZFS_AC_KERNEL_FOLLOW_LINK], [
iops __attribute__ ((unused)) = {
.follow_link = follow_link,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FOLLOW_LINK_COOKIE, 1,
[iops->follow_link() cookie])
],[
dnl #
dnl # 2.6.32 API
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether iops->follow_link() passes nameidata])
ZFS_LINUX_TRY_COMPILE([
],[])
ZFS_LINUX_TEST_SRC([inode_operations_follow_link_nameidata], [
#include <linux/fs.h>
void *follow_link(struct dentry *de, struct
nameidata *nd) { return (void *)NULL; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.follow_link = follow_link,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FOLLOW_LINK_NAMEIDATA, 1,
[iops->follow_link() nameidata])
],[
AC_MSG_ERROR(no; please file a bug report)
])
])
void *follow_link(struct dentry *de, struct
nameidata *nd) { return (void *)NULL; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.follow_link = follow_link,
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_GET_LINK], [
@ -53,20 +51,12 @@ AC_DEFUN([ZFS_AC_KERNEL_GET_LINK], [
dnl # used it to retire the put_link() interface.
dnl #
AC_MSG_CHECKING([whether iops->get_link() passes delayed])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
const char *get_link(struct dentry *de, struct inode *ip,
struct delayed_call *done) { return "symlink"; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.get_link = get_link,
};
],[
],[
ZFS_LINUX_TEST_RESULT([inode_operations_get_link], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GET_LINK_DELAYED, 1,
[iops->get_link() delayed])
AC_DEFINE(HAVE_GET_LINK_DELAYED, 1, [iops->get_link() delayed])
],[
AC_MSG_RESULT(no)
dnl #
dnl # 4.5 API change
dnl # The follow_link() interface has been replaced by
@ -74,27 +64,41 @@ AC_DEFUN([ZFS_AC_KERNEL_GET_LINK], [
dnl # - An inode is passed as a separate argument
dnl # - When called in RCU mode a NULL dentry is passed.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->get_link() passes cookie])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
const char *get_link(struct dentry *de, struct
inode *ip, void **cookie) { return "symlink"; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.get_link = get_link,
};
],[
],[
ZFS_LINUX_TEST_RESULT([inode_operations_get_link_cookie], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GET_LINK_COOKIE, 1,
[iops->get_link() cookie])
],[
dnl #
dnl # Check for the follow_link APIs.
dnl #
AC_MSG_RESULT(no)
ZFS_AC_KERNEL_FOLLOW_LINK
dnl #
dnl # 4.2 API change
dnl # This kernel retired the nameidata structure.
dnl #
AC_MSG_CHECKING(
[whether iops->follow_link() passes cookie])
ZFS_LINUX_TEST_RESULT([inode_operations_follow_link], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FOLLOW_LINK_COOKIE, 1,
[iops->follow_link() cookie])
],[
AC_MSG_RESULT(no)
dnl #
dnl # 2.6.32 API
dnl #
AC_MSG_CHECKING(
[whether iops->follow_link() passes nameidata])
ZFS_LINUX_TEST_RESULT(
[inode_operations_follow_link_nameidata],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FOLLOW_LINK_NAMEIDATA, 1,
[iops->follow_link() nameidata])
],[
ZFS_LINUX_TEST_ERROR([get_link])
])
])
])
])
])

72
config/kernel-global_page_state.m4
View File

@ -4,16 +4,21 @@ dnl #
dnl # 75ef71840539 mm, vmstat: add infrastructure for per-node vmstats
dnl # 599d0c954f91 mm, vmscan: move LRU lists to node
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_NODE_PAGE_STATE], [
AC_MSG_CHECKING([whether global_node_page_state() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_GLOBAL_NODE_PAGE_STATE], [
ZFS_LINUX_TEST_SRC([global_node_page_state], [
#include <linux/mm.h>
#include <linux/vmstat.h>
],[
(void) global_node_page_state(0);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_NODE_PAGE_STATE], [
AC_MSG_CHECKING([whether global_node_page_state() exists])
ZFS_LINUX_TEST_RESULT([global_node_page_state], [
AC_MSG_RESULT(yes)
AC_DEFINE(ZFS_GLOBAL_NODE_PAGE_STATE, 1, [global_node_page_state() exists])
AC_DEFINE(ZFS_GLOBAL_NODE_PAGE_STATE, 1,
[global_node_page_state() exists])
],[
AC_MSG_RESULT(no)
])
@ -24,16 +29,21 @@ dnl # 4.14 API change
dnl #
dnl # c41f012ade0b mm: rename global_page_state to global_zone_page_state
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_ZONE_PAGE_STATE], [
AC_MSG_CHECKING([whether global_zone_page_state() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_GLOBAL_ZONE_PAGE_STATE], [
ZFS_LINUX_TEST_SRC([global_zone_page_state], [
#include <linux/mm.h>
#include <linux/vmstat.h>
],[
(void) global_zone_page_state(0);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_ZONE_PAGE_STATE], [
AC_MSG_CHECKING([whether global_zone_page_state() exists])
ZFS_LINUX_TEST_RESULT([global_zone_page_state], [
AC_MSG_RESULT(yes)
AC_DEFINE(ZFS_GLOBAL_ZONE_PAGE_STATE, 1, [global_zone_page_state() exists])
AC_DEFINE(ZFS_GLOBAL_ZONE_PAGE_STATE, 1,
[global_zone_page_state() exists])
],[
AC_MSG_RESULT(no)
])
@ -44,9 +54,11 @@ dnl # Create a define and autoconf variable for an enum member
dnl #
AC_DEFUN([ZFS_AC_KERNEL_ENUM_MEMBER], [
AC_MSG_CHECKING([whether enum $2 contains $1])
AS_IF([AC_TRY_COMMAND("${srcdir}/scripts/enum-extract.pl" "$2" "$3" | egrep -qx $1)],[
AS_IF([AC_TRY_COMMAND(
"${srcdir}/scripts/enum-extract.pl" "$2" "$3" | egrep -qx $1)],[
AC_MSG_RESULT([yes])
AC_DEFINE(m4_join([_], [ZFS_ENUM], m4_toupper($2), $1), 1, [enum $2 contains $1])
AC_DEFINE(m4_join([_], [ZFS_ENUM], m4_toupper($2), $1), 1,
[enum $2 contains $1])
m4_join([_], [ZFS_ENUM], m4_toupper($2), $1)=1
],[
AC_MSG_RESULT([no])
@ -59,8 +71,7 @@ dnl #
AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_PAGE_STATE_ENUM_ERROR],[
AC_MSG_RESULT(no)
AC_MSG_RESULT([$1 in either node_stat_item or zone_stat_item: $2])
AC_MSG_RESULT([configure needs updating, see: config/kernel-global_page_state.m4])
AC_MSG_FAILURE([SHUT 'ER DOWN CLANCY, SHE'S PUMPIN' MUD!])
ZFS_LINUX_TEST_ERROR([global page state])
])
AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_PAGE_STATE_ENUM_CHECK], [
@ -75,10 +86,10 @@ AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_PAGE_STATE_ENUM_CHECK], [
])
dnl #
dnl # Ensure the config tests are finding one and only one of each enum of interest
dnl # Ensure the config tests are finding one and only one of each enum.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_ZONE_PAGE_STATE_SANITY], [
AC_MSG_CHECKING([global_page_state enums are sane])
AC_MSG_CHECKING([whether global_page_state enums are sane])
ZFS_AC_KERNEL_GLOBAL_PAGE_STATE_ENUM_CHECK([NR_FILE_PAGES])
ZFS_AC_KERNEL_GLOBAL_PAGE_STATE_ENUM_CHECK([NR_INACTIVE_ANON])
@ -88,6 +99,11 @@ AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_ZONE_PAGE_STATE_SANITY], [
AC_MSG_RESULT(yes)
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_GLOBAL_PAGE_STATE], [
ZFS_AC_KERNEL_SRC_GLOBAL_NODE_PAGE_STATE
ZFS_AC_KERNEL_SRC_GLOBAL_ZONE_PAGE_STATE
])
dnl #
dnl # enum members in which we're interested
dnl #
@ -95,15 +111,23 @@ AC_DEFUN([ZFS_AC_KERNEL_GLOBAL_PAGE_STATE], [
ZFS_AC_KERNEL_GLOBAL_NODE_PAGE_STATE
ZFS_AC_KERNEL_GLOBAL_ZONE_PAGE_STATE
ZFS_AC_KERNEL_ENUM_MEMBER([NR_FILE_PAGES], [node_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_INACTIVE_ANON], [node_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_INACTIVE_FILE], [node_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_SLAB_RECLAIMABLE], [node_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_FILE_PAGES],
[node_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_INACTIVE_ANON],
[node_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_INACTIVE_FILE],
[node_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_SLAB_RECLAIMABLE],
[node_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_FILE_PAGES], [zone_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_INACTIVE_ANON], [zone_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_INACTIVE_FILE], [zone_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_SLAB_RECLAIMABLE], [zone_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_FILE_PAGES],
[zone_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_INACTIVE_ANON],
[zone_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_INACTIVE_FILE],
[zone_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_ENUM_MEMBER([NR_SLAB_RECLAIMABLE],
[zone_stat_item], [$LINUX/include/linux/mmzone.h])
ZFS_AC_KERNEL_GLOBAL_ZONE_PAGE_STATE_SANITY
])

15
config/kernel-group-info.m4
View File

@ -2,20 +2,21 @@ dnl #
dnl # 4.9 API change
dnl # group_info changed from 2d array via >blocks to 1d array via ->gid
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GROUP_INFO_GID], [
AC_MSG_CHECKING([whether group_info->gid exists])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_GROUP_INFO_GID], [
ZFS_LINUX_TEST_SRC([group_info_gid], [
#include <linux/cred.h>
],[
struct group_info *gi = groups_alloc(1);
gi->gid[0] = KGIDT_INIT(0);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_GROUP_INFO_GID], [
AC_MSG_CHECKING([whether group_info->gid exists])
ZFS_LINUX_TEST_RESULT([group_info_gid], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GROUP_INFO_GID, 1, [group_info->gid exists])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

12
config/kernel-in-compat-syscall.m4
View File

@ -4,13 +4,17 @@ dnl # Added in_compat_syscall() which can be overridden on a per-
dnl # architecture basis. Prior to this is_compat_task() was the
dnl # provided interface.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_IN_COMPAT_SYSCALL], [
AC_MSG_CHECKING([whether in_compat_syscall() is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_IN_COMPAT_SYSCALL], [
ZFS_LINUX_TEST_SRC([in_compat_syscall], [
#include <linux/compat.h>
],[
in_compat_syscall();
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_IN_COMPAT_SYSCALL], [
AC_MSG_CHECKING([whether in_compat_syscall() is available])
ZFS_LINUX_TEST_RESULT([in_compat_syscall], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IN_COMPAT_SYSCALL, 1,
[in_compat_syscall() is available])

56
config/kernel-inode-getattr.m4
View File

@ -2,9 +2,8 @@ dnl #
dnl # Linux 4.11 API
dnl # See torvalds/linux@a528d35
dnl #
AC_DEFUN([ZFS_AC_PATH_KERNEL_IOPS_GETATTR], [
AC_MSG_CHECKING([whether iops->getattr() takes a path])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_GETATTR], [
ZFS_LINUX_TEST_SRC([inode_operations_getattr_path], [
#include <linux/fs.h>
int test_getattr(
@ -16,24 +15,9 @@ AC_DEFUN([ZFS_AC_PATH_KERNEL_IOPS_GETATTR], [
iops __attribute__ ((unused)) = {
.getattr = test_getattr,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PATH_IOPS_GETATTR, 1,
[iops->getattr() takes a path])
],[
AC_MSG_RESULT(no)
])
])
],[])
dnl #
dnl # Linux 3.9 - 4.10 API
dnl #
AC_DEFUN([ZFS_AC_VFSMOUNT_KERNEL_IOPS_GETATTR], [
AC_MSG_CHECKING([whether iops->getattr() takes a vfsmount])
ZFS_LINUX_TRY_COMPILE([
ZFS_LINUX_TEST_SRC([inode_operations_getattr_vfsmount], [
#include <linux/fs.h>
int test_getattr(
@ -45,23 +29,25 @@ AC_DEFUN([ZFS_AC_VFSMOUNT_KERNEL_IOPS_GETATTR], [
iops __attribute__ ((unused)) = {
.getattr = test_getattr,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_GETATTR], [
AC_MSG_CHECKING([whether iops->getattr() takes a path])
ZFS_LINUX_TEST_RESULT([inode_operations_getattr_path], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_VFSMOUNT_IOPS_GETATTR, 1,
[iops->getattr() takes a vfsmount])
AC_DEFINE(HAVE_PATH_IOPS_GETATTR, 1,
[iops->getattr() takes a path])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->getattr() takes a vfsmount])
ZFS_LINUX_TEST_RESULT([inode_operations_getattr_vfsmount], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_VFSMOUNT_IOPS_GETATTR, 1,
[iops->getattr() takes a vfsmount])
],[
AC_MSG_RESULT(no)
])
])
])
dnl #
dnl # The interface of the getattr callback from the inode_operations
dnl # structure changed. Also, the interface of the simple_getattr()
dnl # function provided by the kernel changed.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_GETATTR], [
ZFS_AC_PATH_KERNEL_IOPS_GETATTR
ZFS_AC_VFSMOUNT_KERNEL_IOPS_GETATTR
])

15
config/kernel-inode-lock.m4
View File

@ -4,20 +4,21 @@ dnl # i_mutex is changed to i_rwsem. Instead of directly using
dnl # i_mutex/i_rwsem, we should use inode_lock() and inode_lock_shared()
dnl # We test inode_lock_shared because inode_lock is introduced earlier.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_LOCK], [
AC_MSG_CHECKING([whether inode_lock_shared() exists])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_LOCK], [
ZFS_LINUX_TEST_SRC([inode_lock], [
#include <linux/fs.h>
],[
struct inode *inode = NULL;
inode_lock_shared(inode);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_LOCK], [
AC_MSG_CHECKING([whether inode_lock_shared() exists])
ZFS_LINUX_TEST_RESULT([inode_lock], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_LOCK_SHARED, 1, [yes])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

12
config/kernel-inode-set-flags.m4
View File

@ -2,14 +2,18 @@ dnl #
dnl # 3.15 API change
dnl # inode_set_flags introduced to set i_flags
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_SET_FLAGS], [
AC_MSG_CHECKING([whether inode_set_flags() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_SET_FLAGS], [
ZFS_LINUX_TEST_SRC([inode_set_flags], [
#include <linux/fs.h>
],[
struct inode inode;
inode_set_flags(&inode, S_IMMUTABLE, S_IMMUTABLE);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_SET_FLAGS], [
AC_MSG_CHECKING([whether inode_set_flags() exists])
ZFS_LINUX_TEST_RESULT([inode_set_flags], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_SET_FLAGS, 1, [inode_set_flags() exists])
],[

12
config/kernel-inode-set-iversion.m4
View File

@ -2,14 +2,18 @@ dnl #
dnl # 4.16 API change
dnl # inode_set_iversion introduced to set i_version
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_SET_IVERSION], [
AC_MSG_CHECKING([whether inode_set_iversion() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_SET_IVERSION], [
ZFS_LINUX_TEST_SRC([inode_set_iversion], [
#include <linux/iversion.h>
],[
struct inode inode;
inode_set_iversion(&inode, 1);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_SET_IVERSION], [
AC_MSG_CHECKING([whether inode_set_iversion() exists])
ZFS_LINUX_TEST_RESULT([inode_set_iversion], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_SET_IVERSION, 1,
[inode_set_iversion() exists])

15
config/kernel-inode-times.m4
View File

@ -2,11 +2,8 @@ dnl #
dnl # 4.18 API change
dnl # i_atime, i_mtime, and i_ctime changed from timespec to timespec64.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_TIMES], [
AC_MSG_CHECKING([whether inode->i_*time's are timespec64])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_TIMES], [
ZFS_LINUX_TEST_SRC([inode_times], [
#include <linux/fs.h>
],[
struct inode ip;
@ -14,12 +11,16 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_TIMES], [
memset(&ip, 0, sizeof(ip));
ts = ip.i_mtime;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_TIMES], [
AC_MSG_CHECKING([whether inode->i_*time's are timespec64])
ZFS_LINUX_TEST_RESULT([inode_times], [
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_TIMESPEC64_TIMES, 1,
[inode->i_*time's are timespec64])
])
EXTRA_KCFLAGS="$tmp_flags"
])

15
config/kernel-insert-inode-locked.m4
View File

@ -2,16 +2,21 @@ dnl #
dnl # 2.6.28 API change
dnl # Added insert_inode_locked() helper function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INSERT_INODE_LOCKED],
[AC_MSG_CHECKING([whether insert_inode_locked() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INSERT_INODE_LOCKED], [
ZFS_LINUX_TEST_SRC([insert_inode_locked], [
#include <linux/fs.h>
], [
insert_inode_locked(NULL);
], [insert_inode_locked], [fs/inode.c], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_INSERT_INODE_LOCKED], [
AC_MSG_CHECKING([whether insert_inode_locked() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([insert_inode_locked],
[insert_inode_locked], [fs/inode.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INSERT_INODE_LOCKED, 1,
[insert_inode_locked() is available])
[insert_inode_locked() is available])
], [
AC_MSG_RESULT(no)
])

14
config/kernel-invalidate-bdev-args.m4
View File

@ -2,17 +2,21 @@ dnl #
dnl # 2.6.22 API change
dnl # Unused destroy_dirty_buffers arg removed from prototype.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INVALIDATE_BDEV_ARGS], [
AC_MSG_CHECKING([whether invalidate_bdev() wants 1 arg])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INVALIDATE_BDEV], [
ZFS_LINUX_TEST_SRC([invalidate_bdev], [
#include <linux/buffer_head.h>
],[
struct block_device *bdev = NULL;
invalidate_bdev(bdev);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_INVALIDATE_BDEV], [
AC_MSG_CHECKING([whether invalidate_bdev() wants 1 arg])
ZFS_LINUX_TEST_RESULT([invalidate_bdev], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_1ARG_INVALIDATE_BDEV, 1,
[invalidate_bdev() wants 1 arg])
[invalidate_bdev() wants 1 arg])
],[
AC_MSG_RESULT(no)
])

31
config/kernel-is_owner_or_cap.m4
View File

@ -4,33 +4,40 @@ dnl # The is_owner_or_cap() macro was renamed to inode_owner_or_capable(),
dnl # This is used for permission checks in the xattr and file attribute call
dnl # paths.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE], [
AC_MSG_CHECKING([whether inode_owner_or_capable() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OWNER_OR_CAPABLE], [
ZFS_LINUX_TEST_SRC([inode_owner_or_capable], [
#include <linux/fs.h>
],[
struct inode *ip = NULL;
(void) inode_owner_or_capable(ip);
])
ZFS_LINUX_TEST_SRC([is_owner_or_cap], [
#include <linux/fs.h>
#include <linux/sched.h>
],[
struct inode *ip = NULL;
(void) is_owner_or_cap(ip);
])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE], [
AC_MSG_CHECKING([whether inode_owner_or_capable() exists])
ZFS_LINUX_TEST_RESULT([inode_owner_or_capable], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
[inode_owner_or_capable() exists])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether is_owner_or_cap() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
#include <linux/sched.h>
],[
struct inode *ip = NULL;
(void) is_owner_or_cap(ip);
],[
ZFS_LINUX_TEST_RESULT([is_owner_or_cap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IS_OWNER_OR_CAP, 1,
[is_owner_or_cap() exists])
],[
AC_MSG_ERROR(no - Please file a bug report at
https://github.com/zfsonlinux/zfs/issues/new)
ZFS_LINUX_TEST_ERROR([capability])
])
])
])

14
config/kernel-kmap-atomic-args.m4
View File

@ -3,17 +3,21 @@ dnl # 2.6.37 API change
dnl # kmap_atomic changed from assigning hard-coded named slot to using
dnl # push/pop based dynamical allocation.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS], [
AC_MSG_CHECKING([whether kmap_atomic wants 1 args])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_KMAP_ATOMIC_ARGS], [
ZFS_LINUX_TEST_SRC([kmap_atomic], [
#include <linux/pagemap.h>
],[
struct page page;
kmap_atomic(&page);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS], [
AC_MSG_CHECKING([whether kmap_atomic wants 1 args])
ZFS_LINUX_TEST_RESULT([kmap_atomic], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_1ARG_KMAP_ATOMIC, 1,
[kmap_atomic wants 1 args])
[kmap_atomic wants 1 args])
],[
AC_MSG_RESULT(no)
])

62
config/kernel-kmem-cache.m4
View File

@ -5,30 +5,36 @@ dnl # private allocation flags which are applied when allocating a new slab
dnl # in kmem_getpages(). Unfortunately there is no public API for setting
dnl # non-default flags.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_KMEM_CACHE_ALLOCFLAGS], [
AC_MSG_CHECKING([whether struct kmem_cache has allocflags])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_KMEM_CACHE_ALLOCFLAGS], [
ZFS_LINUX_TEST_SRC([kmem_cache_allocflags], [
#include <linux/slab.h>
],[
struct kmem_cache cachep __attribute__ ((unused));
cachep.allocflags = GFP_KERNEL;
])
ZFS_LINUX_TEST_SRC([kmem_cache_gfpflags], [
#include <linux/slab.h>
],[
struct kmem_cache cachep __attribute__ ((unused));
cachep.gfpflags = GFP_KERNEL;
])
])
AC_DEFUN([ZFS_AC_KERNEL_KMEM_CACHE_ALLOCFLAGS], [
AC_MSG_CHECKING([whether struct kmem_cache has allocflags])
ZFS_LINUX_TEST_RESULT([kmem_cache_allocflags], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMEM_CACHE_ALLOCFLAGS, 1,
[struct kmem_cache has allocflags])
[struct kmem_cache has allocflags])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether struct kmem_cache has gfpflags])
ZFS_LINUX_TRY_COMPILE([
#include <linux/slab.h>
],[
struct kmem_cache cachep __attribute__ ((unused));
cachep.gfpflags = GFP_KERNEL;
],[
ZFS_LINUX_TEST_RESULT([kmem_cache_gfpflags], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMEM_CACHE_GFPFLAGS, 1,
[struct kmem_cache has gfpflags])
[struct kmem_cache has gfpflags])
],[
AC_MSG_RESULT(no)
])
@ -40,16 +46,10 @@ dnl # grsecurity API change,
dnl # kmem_cache_create() with SLAB_USERCOPY flag replaced by
dnl # kmem_cache_create_usercopy().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_KMEM_CACHE_CREATE_USERCOPY], [
AC_MSG_CHECKING([whether kmem_cache_create_usercopy() exists])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_KMEM_CACHE_CREATE_USERCOPY], [
ZFS_LINUX_TEST_SRC([kmem_cache_create_usercopy], [
#include <linux/slab.h>
static void ctor(void *foo)
{
// fake ctor
}
static void ctor(void *foo) { /* fake ctor */ }
],[
struct kmem_cache *skc_linux_cache;
const char *name = "test";
@ -60,13 +60,27 @@ AC_DEFUN([ZFS_AC_KERNEL_KMEM_CACHE_CREATE_USERCOPY], [
size_t usersize = size - useroffset;
skc_linux_cache = kmem_cache_create_usercopy(
name, size, align, flags, useroffset, usersize, ctor);
],[
name, size, align, flags, useroffset, usersize, ctor);
])
])
AC_DEFUN([ZFS_AC_KERNEL_KMEM_CACHE_CREATE_USERCOPY], [
AC_MSG_CHECKING([whether kmem_cache_create_usercopy() exists])
ZFS_LINUX_TEST_RESULT([kmem_cache_create_usercopy], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMEM_CACHE_CREATE_USERCOPY, 1,
[kmem_cache_create_usercopy() exists])
[kmem_cache_create_usercopy() exists])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_KMEM_CACHE], [
ZFS_AC_KERNEL_SRC_KMEM_CACHE_ALLOCFLAGS
ZFS_AC_KERNEL_SRC_KMEM_CACHE_CREATE_USERCOPY
])
AC_DEFUN([ZFS_AC_KERNEL_KMEM_CACHE], [
ZFS_AC_KERNEL_KMEM_CACHE_ALLOCFLAGS
ZFS_AC_KERNEL_KMEM_CACHE_CREATE_USERCOPY
])

14
config/kernel-kstrtoul.m4
View File

@ -1,18 +1,20 @@
dnl #
dnl # 2.6.39 API change
dnl #
dnl # 33ee3b2e2eb9 kstrto*: converting strings to integers done (hopefully) right
dnl #
dnl # If kstrtoul() doesn't exist, fallback to use strict_strtoul() which has
dnl # existed since 2.6.25.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_KSTRTOUL], [
AC_MSG_CHECKING([whether kstrtoul() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_KSTRTOUL], [
ZFS_LINUX_TEST_SRC([kstrtoul], [
#include <linux/kernel.h>
],[
int ret __attribute__ ((unused)) = kstrtoul(NULL, 10, NULL);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_KSTRTOUL], [
AC_MSG_CHECKING([whether kstrtoul() exists])
ZFS_LINUX_TEST_RESULT([kstrtoul], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KSTRTOUL, 1, [kstrtoul() exists])
],[

15
config/kernel-ktime_get_coarse_real_ts64.m4
View File

@ -2,16 +2,21 @@ dnl #
dnl # 4.18: ktime_get_coarse_real_ts64() added. Use it in place of
dnl # current_kernel_time64().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_KTIME_GET_COARSE_REAL_TS64],
[AC_MSG_CHECKING([whether ktime_get_coarse_real_ts64() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_KTIME_GET_COARSE_REAL_TS64], [
ZFS_LINUX_TEST_SRC([ktime_get_coarse_real_ts64], [
#include <linux/mm.h>
], [
struct timespec64 ts;
ktime_get_coarse_real_ts64(&ts);
], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_KTIME_GET_COARSE_REAL_TS64], [
AC_MSG_CHECKING([whether ktime_get_coarse_real_ts64() exists])
ZFS_LINUX_TEST_RESULT([ktime_get_coarse_real_ts64], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KTIME_GET_COARSE_REAL_TS64, 1, [ktime_get_coarse_real_ts64() exists])
AC_DEFINE(HAVE_KTIME_GET_COARSE_REAL_TS64, 1,
[ktime_get_coarse_real_ts64() exists])
], [
AC_MSG_RESULT(no)
])

12
config/kernel-kuid-helpers.m4
View File

@ -5,14 +5,18 @@ dnl # became necessary to go through one more level of indirection
dnl # when dealing with uid/gid - namely the kuid type.
dnl #
dnl #
AC_DEFUN([ZFS_AC_KERNEL_KUID_HELPERS], [
AC_MSG_CHECKING([whether i_(uid|gid)_(read|write) exist])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_KUID_HELPERS], [
ZFS_LINUX_TEST_SRC([i_uid_read], [
#include <linux/fs.h>
],[
struct inode *ip = NULL;
(void) i_uid_read(ip);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_KUID_HELPERS], [
AC_MSG_CHECKING([whether i_(uid|gid)_(read|write) exist])
ZFS_LINUX_TEST_RESULT([i_uid_read], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KUID_HELPERS, 1,
[i_(uid|gid)_(read|write) exist])

26
config/kernel-kuidgid.m4
View File

@ -3,20 +3,26 @@ dnl # User namespaces, use kuid_t in place of uid_t
dnl # where available. Not strictly a user namespaces thing
dnl # but it should prevent surprises
dnl #
AC_DEFUN([ZFS_AC_KERNEL_KUIDGID_T], [
AC_MSG_CHECKING([whether kuid_t/kgid_t is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_KUIDGID_T], [
ZFS_LINUX_TEST_SRC([kuidgid_t_init], [
#include <linux/uidgid.h>
], [
kuid_t userid __attribute__ ((unused)) = KUIDT_INIT(0);
kgid_t groupid __attribute__ ((unused)) = KGIDT_INIT(0);
],[
ZFS_LINUX_TRY_COMPILE([
#include <linux/uidgid.h>
], [
kuid_t userid __attribute__ ((unused)) = 0;
kgid_t groupid __attribute__ ((unused)) = 0;
],[
])
ZFS_LINUX_TEST_SRC([kuidgid_t], [
#include <linux/uidgid.h>
], [
kuid_t userid __attribute__ ((unused)) = 0;
kgid_t groupid __attribute__ ((unused)) = 0;
])
])
AC_DEFUN([ZFS_AC_KERNEL_KUIDGID_T], [
AC_MSG_CHECKING([whether kuid_t/kgid_t is available])
ZFS_LINUX_TEST_RESULT([kuidgid_t_init], [
ZFS_LINUX_TEST_RESULT([kuidgid_t], [
AC_MSG_RESULT(yes; optional)
],[
AC_MSG_RESULT(yes; mandatory)

32
config/kernel-lookup-bdev.m4
View File

@ -2,23 +2,33 @@ dnl #
dnl # 2.6.27, lookup_bdev() was exported.
dnl # 4.4.0-6.21 - x.y on Ubuntu, lookup_bdev() takes 2 arguments.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_BDEV],
[AC_MSG_CHECKING([whether lookup_bdev() wants 1 arg])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_LOOKUP_BDEV], [
ZFS_LINUX_TEST_SRC([lookup_bdev_1arg], [
#include <linux/fs.h>
], [
lookup_bdev(NULL);
], [lookup_bdev], [fs/block_dev.c], [
])
ZFS_LINUX_TEST_SRC([lookup_bdev_2args], [
#include <linux/fs.h>
], [
lookup_bdev(NULL, FMODE_READ);
])
])
AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_BDEV], [
AC_MSG_CHECKING([whether lookup_bdev() wants 1 arg])
ZFS_LINUX_TEST_RESULT_SYMBOL([lookup_bdev_1arg],
[lookup_bdev], [fs/block_dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_1ARG_LOOKUP_BDEV, 1, [lookup_bdev() wants 1 arg])
AC_DEFINE(HAVE_1ARG_LOOKUP_BDEV, 1,
[lookup_bdev() wants 1 arg])
], [
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether lookup_bdev() wants 2 args])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/fs.h>
], [
lookup_bdev(NULL, FMODE_READ);
], [lookup_bdev], [fs/block_dev.c], [
ZFS_LINUX_TEST_RESULT_SYMBOL([lookup_bdev_2args],
[lookup_bdev], [fs/block_dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_2ARGS_LOOKUP_BDEV, 1,
[lookup_bdev() wants 2 args])
@ -26,4 +36,4 @@ AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_BDEV],
AC_MSG_RESULT(no)
])
])
])
])

15
config/kernel-lookup-nameidata.m4
View File

@ -1,9 +1,8 @@
dnl #
dnl # 3.6 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_NAMEIDATA], [
AC_MSG_CHECKING([whether iops->lookup() passes nameidata])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_LOOKUP_NAMEIDATA], [
ZFS_LINUX_TEST_SRC([lookup_nameidata], [
#include <linux/fs.h>
#include <linux/sched.h>
@ -15,11 +14,15 @@ AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_NAMEIDATA], [
__attribute__ ((unused)) = {
.lookup = inode_lookup,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_NAMEIDATA], [
AC_MSG_CHECKING([whether iops->lookup() passes nameidata])
ZFS_LINUX_TEST_RESULT([lookup_nameidata], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_LOOKUP_NAMEIDATA, 1,
[iops->lookup() passes nameidata])
[iops->lookup() passes nameidata])
],[
AC_MSG_RESULT(no)
])

16
config/kernel-lseek-execute.m4
View File

@ -2,9 +2,8 @@ dnl #
dnl # 3.11 API change
dnl # lseek_execute helper exported
dnl #
AC_DEFUN([ZFS_AC_KERNEL_LSEEK_EXECUTE],
[AC_MSG_CHECKING([whether lseek_execute() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_LSEEK_EXECUTE], [
ZFS_LINUX_TEST_SRC([lseek_execute], [
#include <linux/fs.h>
], [
struct file *fp __attribute__ ((unused)) = NULL;
@ -13,10 +12,15 @@ AC_DEFUN([ZFS_AC_KERNEL_LSEEK_EXECUTE],
loff_t maxsize __attribute__ ((unused)) = 0;
lseek_execute(fp, ip, offset, maxsize);
], [lseek_exclusive], [fs/read_write.c], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_LSEEK_EXECUTE], [
AC_MSG_CHECKING([whether lseek_execute() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([lseek_execute],
[lseek_exclusive], [fs/read_write.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_LSEEK_EXECUTE, 1,
[lseek_execute() is available])
AC_DEFINE(HAVE_LSEEK_EXECUTE, 1, [lseek_execute() is available])
], [
AC_MSG_RESULT(no)
])

77
config/kernel-make-request-fn.m4 Normal file
View File

@ -0,0 +1,77 @@
dnl #
dnl # Check for make_request_fn interface.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_MAKE_REQUEST_FN], [
ZFS_LINUX_TEST_SRC([make_request_fn_int], [
#include <linux/blkdev.h>
int make_request(struct request_queue *q,
struct bio *bio) { return (0); }
],[
blk_queue_make_request(NULL, &make_request);
])
ZFS_LINUX_TEST_SRC([make_request_fn_void], [
#include <linux/blkdev.h>
void make_request(struct request_queue *q,
struct bio *bio) { return; }
],[
blk_queue_make_request(NULL, &make_request);
])
ZFS_LINUX_TEST_SRC([make_request_fn_blk_qc_t], [
#include <linux/blkdev.h>
blk_qc_t make_request(struct request_queue *q,
struct bio *bio) { return (BLK_QC_T_NONE); }
],[
blk_queue_make_request(NULL, &make_request);
])
])
AC_DEFUN([ZFS_AC_KERNEL_MAKE_REQUEST_FN], [
dnl #
dnl # Legacy API
dnl # make_request_fn returns int.
dnl #
AC_MSG_CHECKING([whether make_request_fn() returns int])
ZFS_LINUX_TEST_RESULT([make_request_fn_int], [
AC_MSG_RESULT(yes)
AC_DEFINE(MAKE_REQUEST_FN_RET, int,
[make_request_fn() return type])
AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_INT, 1,
[Noting that make_request_fn() returns int])
],[
AC_MSG_RESULT(no)
dnl #
dnl # Linux 3.2 API Change
dnl # make_request_fn returns void.
dnl #
AC_MSG_CHECKING([whether make_request_fn() returns void])
ZFS_LINUX_TEST_RESULT([make_request_fn_void], [
AC_MSG_RESULT(yes)
AC_DEFINE(MAKE_REQUEST_FN_RET, void,
[make_request_fn() return type])
AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_VOID, 1,
[Noting that make_request_fn() returns void])
],[
AC_MSG_RESULT(no)
dnl #
dnl # Linux 4.4 API Change
dnl # make_request_fn returns blk_qc_t.
dnl #
AC_MSG_CHECKING(
[whether make_request_fn() returns blk_qc_t])
ZFS_LINUX_TEST_RESULT([make_request_fn_blk_qc_t], [
AC_MSG_RESULT(yes)
AC_DEFINE(MAKE_REQUEST_FN_RET, blk_qc_t,
[make_request_fn() return type])
AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_QC, 1,
[Noting that make_request_fn() ]
[returns blk_qc_t])
],[
ZFS_LINUX_TEST_ERROR([make_request_fn])
])
])
])
])

2
config/kernel-misc-minor.m4
View File

@ -6,7 +6,7 @@ dnl # number. Start with a large known available unreserved minor and work
dnl # our way down to lower value if a collision is detected.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_MISC_MINOR], [
AC_MSG_CHECKING([for available /dev/zfs minor])
AC_MSG_CHECKING([whether /dev/zfs minor is available])
for i in $(seq 249 -1 200); do
if ! grep -q "^#define\s\+.*_MINOR\s\+.*$i" \

65
config/kernel-mk-request-fn.m4
View File

@ -1,65 +0,0 @@
dnl #
dnl # Linux 3.2 API Change
dnl # make_request_fn returns void instead of int.
dnl #
dnl # Linux 4.4 API Change
dnl # make_request_fn returns blk_qc_t.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_MAKE_REQUEST_FN], [
AC_MSG_CHECKING([whether make_request_fn() returns int])
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
int make_request(struct request_queue *q, struct bio *bio)
{
return (0);
}
],[
blk_queue_make_request(NULL, &make_request);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(MAKE_REQUEST_FN_RET, int,
[make_request_fn() returns int])
AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_INT, 1,
[Noting that make_request_fn() returns int])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether make_request_fn() returns void])
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
void make_request(struct request_queue *q, struct bio *bio)
{
return;
}
],[
blk_queue_make_request(NULL, &make_request);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(MAKE_REQUEST_FN_RET, void,
[make_request_fn() returns void])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether make_request_fn() returns blk_qc_t])
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
blk_qc_t make_request(struct request_queue *q, struct bio *bio)
{
return (BLK_QC_T_NONE);
}
],[
blk_queue_make_request(NULL, &make_request);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(MAKE_REQUEST_FN_RET, blk_qc_t,
[make_request_fn() returns blk_qc_t])
AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_QC, 1,
[Noting that make_request_fn() returns blk_qc_t])
],[
AC_MSG_ERROR(no - Please file a bug report at
https://github.com/zfsonlinux/zfs/issues/new)
])
])
])
])

13
config/kernel-mkdir-umode-t.m4
View File

@ -6,9 +6,8 @@ dnl # would also change all three prototypes. However, if it turns out that
dnl # some distribution doesn't backport the whole thing this could be
dnl # broken apart into three separate checks.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_MKDIR_UMODE_T], [
AC_MSG_CHECKING([whether iops->create()/mkdir()/mknod() take umode_t])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_MKDIR_UMODE_T], [
ZFS_LINUX_TEST_SRC([inode_operations_mkdir], [
#include <linux/fs.h>
int mkdir(struct inode *inode, struct dentry *dentry,
@ -18,8 +17,12 @@ AC_DEFUN([ZFS_AC_KERNEL_MKDIR_UMODE_T], [
iops __attribute__ ((unused)) = {
.mkdir = mkdir,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_MKDIR_UMODE_T], [
AC_MSG_CHECKING([whether iops->create()/mkdir()/mknod() take umode_t])
ZFS_LINUX_TEST_RESULT([inode_operations_mkdir], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_MKDIR_UMODE_T, 1,
[iops->create()/mkdir()/mknod() take umode_t])

13
config/kernel-mod-param.m4
View File

@ -2,9 +2,8 @@ dnl #
dnl # Grsecurity kernel API change
dnl # constified parameters of module_param_call() methods
dnl #
AC_DEFUN([ZFS_AC_KERNEL_MODULE_PARAM_CALL_CONST], [
AC_MSG_CHECKING([whether module_param_call() is hardened])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_MODULE_PARAM_CALL_CONST], [
ZFS_LINUX_TEST_SRC([module_param_call], [
#include <linux/module.h>
#include <linux/moduleparam.h>
@ -19,8 +18,12 @@ AC_DEFUN([ZFS_AC_KERNEL_MODULE_PARAM_CALL_CONST], [
}
module_param_call(p, param_set, param_get, NULL, 0644);
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_MODULE_PARAM_CALL_CONST], [
AC_MSG_CHECKING([whether module_param_call() is hardened])
ZFS_LINUX_TEST_RESULT([module_param_call], [
AC_MSG_RESULT(yes)
AC_DEFINE(MODULE_PARAM_CALL_CONST, 1,
[hardened module_param_call])

47
config/kernel-objtool.m4
View File

@ -1,41 +1,44 @@
dnl #
dnl # 4.6 API for compile-time stack validation
dnl # Check for objtool support.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_OBJTOOL], [
AC_MSG_CHECKING([for compile-time stack validation (objtool)])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_OBJTOOL], [
dnl # 4.6 API for compile-time stack validation
ZFS_LINUX_TEST_SRC([objtool], [
#undef __ASSEMBLY__
#include <asm/frame.h>
],[
#if !defined(FRAME_BEGIN)
CTASSERT(1);
#endif
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KERNEL_OBJTOOL, 1,
[kernel does stack verification])
ZFS_AC_KERNEL_STACK_FRAME_NON_STANDARD
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 4.6 API added STACK_FRAME_NON_STANDARD macro
dnl #
AC_DEFUN([ZFS_AC_KERNEL_STACK_FRAME_NON_STANDARD], [
AC_MSG_CHECKING([whether STACK_FRAME_NON_STANDARD is defined])
ZFS_LINUX_TRY_COMPILE([
dnl # 4.6 API added STACK_FRAME_NON_STANDARD macro
ZFS_LINUX_TEST_SRC([stack_frame_non_standard], [
#include <linux/frame.h>
],[
#if !defined(STACK_FRAME_NON_STANDARD)
CTASSERT(1);
#endif
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_OBJTOOL], [
AC_MSG_CHECKING(
[whether compile-time stack validation (objtool) is available])
ZFS_LINUX_TEST_RESULT([objtool], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_STACK_FRAME_NON_STANDARD, 1,
[STACK_FRAME_NON_STANDARD is defined])
AC_DEFINE(HAVE_KERNEL_OBJTOOL, 1,
[kernel does stack verification])
AC_MSG_CHECKING([whether STACK_FRAME_NON_STANDARD is defined])
ZFS_LINUX_TEST_RESULT([stack_frame_non_standard], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_STACK_FRAME_NON_STANDARD, 1,
[STACK_FRAME_NON_STANDARD is defined])
],[
AC_MSG_RESULT(no)
])
],[
AC_MSG_RESULT(no)
])

15
config/kernel-open-bdev-exclusive.m4
View File

@ -2,16 +2,21 @@ dnl #
dnl # 2.6.28 API change
dnl # open/close_bdev_excl() renamed to open/close_bdev_exclusive()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_OPEN_BDEV_EXCLUSIVE],
[AC_MSG_CHECKING([whether open_bdev_exclusive() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_BDEV_OPEN_EXCLUSIVE], [
ZFS_LINUX_TEST_SRC([open_bdev_exclusive], [
#include <linux/fs.h>
], [
open_bdev_exclusive(NULL, 0, NULL);
], [open_bdev_exclusive], [fs/block_dev.c], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_BDEV_OPEN_EXCLUSIVE], [
AC_MSG_CHECKING([whether open_bdev_exclusive() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([open_bdev_exclusive],
[open_bdev_exclusive], [fs/block_dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_OPEN_BDEV_EXCLUSIVE, 1,
[open_bdev_exclusive() is available])
[open_bdev_exclusive() is available])
], [
AC_MSG_RESULT(no)
])

14
config/kernel-pde-data.m4
View File

@ -2,15 +2,19 @@ dnl #
dnl # 3.10 API change,
dnl # PDE is replaced by PDE_DATA
dnl #
AC_DEFUN([ZFS_AC_KERNEL_PDE_DATA], [
AC_MSG_CHECKING([whether PDE_DATA() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_PDE_DATA], [
ZFS_LINUX_TEST_SRC([pde_data], [
#include <linux/proc_fs.h>
], [
PDE_DATA(NULL);
], [PDE_DATA], [], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_PDE_DATA], [
AC_MSG_CHECKING([whether PDE_DATA() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([pde_data], [PDE_DATA], [], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PDE_DATA, 1, [yes])
AC_DEFINE(HAVE_PDE_DATA, 1, [PDE_DATA is available])
],[
AC_MSG_RESULT(no)
])

57
config/kernel-put-link.m4
View File

@ -1,17 +1,35 @@
dnl #
dnl # Supported symlink APIs
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_PUT_LINK], [
ZFS_LINUX_TEST_SRC([put_link_cookie], [
#include <linux/fs.h>
void put_link(struct inode *ip, void *cookie)
{ return; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.put_link = put_link,
};
],[])
ZFS_LINUX_TEST_SRC([put_link_nameidata], [
#include <linux/fs.h>
void put_link(struct dentry *de, struct
nameidata *nd, void *ptr) { return; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.put_link = put_link,
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_PUT_LINK], [
dnl #
dnl # 4.5 API change
dnl # get_link() uses delayed done, there is no put_link() interface.
dnl # This check intially uses the inode_operations_get_link result
dnl #
ZFS_LINUX_TRY_COMPILE([
#if !defined(HAVE_GET_LINK_DELAYED)
#error "Expecting get_link() delayed done"
#endif
],[
],[
ZFS_LINUX_TEST_RESULT([inode_operations_get_link], [
AC_DEFINE(HAVE_PUT_LINK_DELAYED, 1, [iops->put_link() delayed])
],[
dnl #
@ -19,41 +37,24 @@ AC_DEFUN([ZFS_AC_KERNEL_PUT_LINK], [
dnl # This kernel retired the nameidata structure.
dnl #
AC_MSG_CHECKING([whether iops->put_link() passes cookie])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
void put_link(struct inode *ip, void *cookie)
{ return; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.put_link = put_link,
};
],[
],[
ZFS_LINUX_TEST_RESULT([put_link_cookie], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PUT_LINK_COOKIE, 1,
[iops->put_link() cookie])
],[
AC_MSG_RESULT(no)
dnl #
dnl # 2.6.32 API
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether iops->put_link() passes nameidata])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
void put_link(struct dentry *de, struct
nameidata *nd, void *ptr) { return; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.put_link = put_link,
};
],[
],[
ZFS_LINUX_TEST_RESULT([put_link_nameidata], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PUT_LINK_NAMEIDATA, 1,
[iops->put_link() nameidata])
],[
AC_MSG_ERROR(no; please file a bug report)
ZFS_LINUX_TEST_ERROR([put_link])
])
])
])

16
config/kernel-rename.m4
View File

@ -3,9 +3,8 @@ dnl # 4.9 API change,
dnl # iops->rename2() merged into iops->rename(), and iops->rename() now wants
dnl # flags.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_RENAME_WANTS_FLAGS], [
AC_MSG_CHECKING([whether iops->rename() wants flags])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_RENAME_WANTS_FLAGS], [
ZFS_LINUX_TEST_SRC([inode_operations_rename], [
#include <linux/fs.h>
int rename_fn(struct inode *sip, struct dentry *sdp,
struct inode *tip, struct dentry *tdp,
@ -15,10 +14,15 @@ AC_DEFUN([ZFS_AC_KERNEL_RENAME_WANTS_FLAGS], [
iops __attribute__ ((unused)) = {
.rename = rename_fn,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_RENAME_WANTS_FLAGS], [
AC_MSG_CHECKING([whether iops->rename() wants flags])
ZFS_LINUX_TEST_RESULT([inode_operations_rename], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_RENAME_WANTS_FLAGS, 1, [iops->rename() wants flags])
AC_DEFINE(HAVE_RENAME_WANTS_FLAGS, 1,
[iops->rename() wants flags])
],[
AC_MSG_RESULT(no)
])

40
config/kernel-rw.m4
View File

@ -3,11 +3,8 @@ dnl # 4.14 API change
dnl # kernel_write() which was introduced in 3.9 was updated to take
dnl # the offset as a pointer which is needed by vn_rdwr().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_WRITE], [
AC_MSG_CHECKING([whether kernel_write() takes loff_t pointer])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_WRITE], [
ZFS_LINUX_TEST_SRC([kernel_write], [
#include <linux/fs.h>
],[
struct file *file = NULL;
@ -17,14 +14,18 @@ AC_DEFUN([ZFS_AC_KERNEL_WRITE], [
ssize_t ret;
ret = kernel_write(file, buf, count, pos);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_WRITE], [
AC_MSG_CHECKING([whether kernel_write() takes loff_t pointer])
ZFS_LINUX_TEST_RESULT([kernel_write], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KERNEL_WRITE_PPOS, 1,
[kernel_write() take loff_t pointer])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
dnl #
@ -32,11 +33,8 @@ dnl # 4.14 API change
dnl # kernel_read() which has existed for forever was updated to take
dnl # the offset as a pointer which is needed by vn_rdwr().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_READ], [
AC_MSG_CHECKING([whether kernel_read() takes loff_t pointer])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_READ], [
ZFS_LINUX_TEST_SRC([kernel_read], [
#include <linux/fs.h>
],[
struct file *file = NULL;
@ -46,12 +44,26 @@ AC_DEFUN([ZFS_AC_KERNEL_READ], [
ssize_t ret;
ret = kernel_read(file, buf, count, pos);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_READ], [
AC_MSG_CHECKING([whether kernel_read() takes loff_t pointer])
ZFS_LINUX_TEST_RESULT([kernel_read], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KERNEL_READ_PPOS, 1,
[kernel_read() take loff_t pointer])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_RW], [
ZFS_AC_KERNEL_SRC_WRITE
ZFS_AC_KERNEL_SRC_READ
])
AC_DEFUN([ZFS_AC_KERNEL_RW], [
ZFS_AC_KERNEL_WRITE
ZFS_AC_KERNEL_READ
])

65
config/kernel-rwsem.m4
View File

@ -4,25 +4,26 @@ dnl #
dnl # The rw_semaphore.wait_lock member was changed from spinlock_t to
dnl # raw_spinlock_t at commit ddb6c9b58a19edcfac93ac670b066c836ff729f1.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW], [
AC_MSG_CHECKING([whether struct rw_semaphore member wait_lock is raw])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_SPINLOCK_IS_RAW], [
ZFS_LINUX_TEST_SRC([rwsem_spinlock_is_raw], [
#include <linux/rwsem.h>
],[
struct rw_semaphore dummy_semaphore __attribute__ ((unused));
raw_spinlock_t dummy_lock __attribute__ ((unused)) =
__RAW_SPIN_LOCK_INITIALIZER(dummy_lock);
dummy_semaphore.wait_lock = dummy_lock;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW], [
AC_MSG_CHECKING([whether struct rw_semaphore member wait_lock is raw])
ZFS_LINUX_TEST_RESULT([rwsem_spinlock_is_raw], [
AC_MSG_RESULT(yes)
AC_DEFINE(RWSEM_SPINLOCK_IS_RAW, 1,
[struct rw_semaphore member wait_lock is raw_spinlock_t])
[struct rw_semaphore member wait_lock is raw_spinlock_t])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
dnl #
@ -30,23 +31,24 @@ dnl # 3.16 API Change
dnl #
dnl # rwsem-spinlock "->activity" changed to "->count"
dnl #
AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ACTIVITY], [
AC_MSG_CHECKING([whether struct rw_semaphore has member activity])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_ACTIVITY], [
ZFS_LINUX_TEST_SRC([rwsem_activity], [
#include <linux/rwsem.h>
],[
struct rw_semaphore dummy_semaphore __attribute__ ((unused));
dummy_semaphore.activity = 0;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ACTIVITY], [
AC_MSG_CHECKING([whether struct rw_semaphore has member activity])
ZFS_LINUX_TEST_RESULT([rwsem_activity], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_RWSEM_ACTIVITY, 1,
[struct rw_semaphore has member activity])
[struct rw_semaphore has member activity])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
dnl #
@ -54,22 +56,35 @@ dnl # 4.8 API Change
dnl #
dnl # rwsem "->count" changed to atomic_long_t type
dnl #
AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT], [
AC_MSG_CHECKING(
[whether struct rw_semaphore has atomic_long_t member count])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_ATOMIC_LONG_COUNT], [
ZFS_LINUX_TEST_SRC([rwsem_atomic_long_count], [
#include <linux/rwsem.h>
],[
DECLARE_RWSEM(dummy_semaphore);
(void) atomic_long_read(&dummy_semaphore.count);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT], [
AC_MSG_CHECKING(
[whether struct rw_semaphore has atomic_long_t member count])
ZFS_LINUX_TEST_RESULT([rwsem_atomic_long_count], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_RWSEM_ATOMIC_LONG_COUNT, 1,
[struct rw_semaphore has atomic_long_t member count])
[struct rw_semaphore has atomic_long_t member count])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM], [
ZFS_AC_KERNEL_SRC_RWSEM_SPINLOCK_IS_RAW
ZFS_AC_KERNEL_SRC_RWSEM_ACTIVITY
ZFS_AC_KERNEL_SRC_RWSEM_ATOMIC_LONG_COUNT
])
AC_DEFUN([ZFS_AC_KERNEL_RWSEM], [
ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW
ZFS_AC_KERNEL_RWSEM_ACTIVITY
ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT
])

53
config/kernel-sched.m4
View File

@ -2,14 +2,18 @@ dnl #
dnl # 3.9 API change,
dnl # Moved things from linux/sched.h to linux/sched/rt.h
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SCHED_RT_HEADER],
[AC_MSG_CHECKING([whether header linux/sched/rt.h exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SCHED_RT_HEADER], [
ZFS_LINUX_TEST_SRC([sched_rt_header], [
#include <linux/sched.h>
#include <linux/sched/rt.h>
],[
return 0;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SCHED_RT_HEADER], [
AC_MSG_CHECKING([whether header linux/sched/rt.h exists])
ZFS_LINUX_TEST_RESULT([sched_rt_header], [
AC_DEFINE(HAVE_SCHED_RT_HEADER, 1, [linux/sched/rt.h exists])
AC_MSG_RESULT(yes)
],[
@ -21,36 +25,59 @@ dnl #
dnl # 4.11 API change,
dnl # Moved things from linux/sched.h to linux/sched/signal.h
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SCHED_SIGNAL_HEADER],
[AC_MSG_CHECKING([whether header linux/sched/signal.h exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SCHED_SIGNAL_HEADER], [
ZFS_LINUX_TEST_SRC([sched_signal_header], [
#include <linux/sched.h>
#include <linux/sched/signal.h>
],[
return 0;
],[
AC_DEFINE(HAVE_SCHED_SIGNAL_HEADER, 1, [linux/sched/signal.h exists])
])
])
AC_DEFUN([ZFS_AC_KERNEL_SCHED_SIGNAL_HEADER], [
AC_MSG_CHECKING([whether header linux/sched/signal.h exists])
ZFS_LINUX_TEST_RESULT([sched_signal_header], [
AC_DEFINE(HAVE_SCHED_SIGNAL_HEADER, 1,
[linux/sched/signal.h exists])
AC_MSG_RESULT(yes)
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 3.19 API change
dnl # The io_schedule_timeout() function is present in all 2.6.32 kernels
dnl # but it was not exported until Linux 3.19. The RHEL 7.x kernels which
dnl # are based on a 3.10 kernel do export this symbol.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_IO_SCHEDULE_TIMEOUT], [
AC_MSG_CHECKING([whether io_schedule_timeout() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_IO_SCHEDULE_TIMEOUT], [
ZFS_LINUX_TEST_SRC([io_schedule_timeout], [
#include <linux/sched.h>
], [
(void) io_schedule_timeout(1);
], [io_schedule_timeout], [], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_IO_SCHEDULE_TIMEOUT], [
AC_MSG_CHECKING([whether io_schedule_timeout() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([io_schedule_timeout],
[io_schedule_timeout], [], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IO_SCHEDULE_TIMEOUT, 1, [yes])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_SCHED], [
ZFS_AC_KERNEL_SRC_SCHED_RT_HEADER
ZFS_AC_KERNEL_SRC_SCHED_SIGNAL_HEADER
ZFS_AC_KERNEL_SRC_IO_SCHEDULE_TIMEOUT
])
AC_DEFUN([ZFS_AC_KERNEL_SCHED], [
ZFS_AC_KERNEL_SCHED_RT_HEADER
ZFS_AC_KERNEL_SCHED_SIGNAL_HEADER
ZFS_AC_KERNEL_IO_SCHEDULE_TIMEOUT
])

38
config/kernel-security-inode-init.m4
View File

@ -5,9 +5,8 @@ dnl # qstr argument which must be passed in from the dentry if available.
dnl # Passing a NULL is safe when no qstr is available the relevant
dnl # security checks will just be skipped.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_6ARGS_SECURITY_INODE_INIT_SECURITY], [
AC_MSG_CHECKING([whether security_inode_init_security wants 6 args])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SECURITY_INODE_INIT_SECURITY_6ARGS], [
ZFS_LINUX_TEST_SRC([security_inode_init_security_6args], [
#include <linux/security.h>
],[
struct inode *ip __attribute__ ((unused)) = NULL;
@ -18,10 +17,15 @@ AC_DEFUN([ZFS_AC_KERNEL_6ARGS_SECURITY_INODE_INIT_SECURITY], [
size_t len __attribute__ ((unused)) = 0;
security_inode_init_security(ip, dip, str, &name, &value, &len);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SECURITY_INODE_INIT_SECURITY_6ARGS], [
AC_MSG_CHECKING([whether security_inode_init_security wants 6 args])
ZFS_LINUX_TEST_RESULT([security_inode_init_security_6args], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_6ARGS_SECURITY_INODE_INIT_SECURITY, 1,
[security_inode_init_security wants 6 args])
[security_inode_init_security wants 6 args])
],[
AC_MSG_RESULT(no)
])
@ -34,9 +38,8 @@ dnl # a filesystem specific callback to write security extended attributes.
dnl # This was done to support the initialization of multiple LSM xattrs
dnl # and the EVM xattr.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CALLBACK_SECURITY_INODE_INIT_SECURITY], [
AC_MSG_CHECKING([whether security_inode_init_security wants callback])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SECURITY_INODE_INIT_SECURITY_CALLBACK], [
ZFS_LINUX_TEST_SRC([security_inode_init_security], [
#include <linux/security.h>
],[
struct inode *ip __attribute__ ((unused)) = NULL;
@ -45,11 +48,26 @@ AC_DEFUN([ZFS_AC_KERNEL_CALLBACK_SECURITY_INODE_INIT_SECURITY], [
initxattrs func __attribute__ ((unused)) = NULL;
security_inode_init_security(ip, dip, str, func, NULL);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SECURITY_INODE_INIT_SECURITY_CALLBACK], [
AC_MSG_CHECKING([whether security_inode_init_security wants callback])
ZFS_LINUX_TEST_RESULT([security_inode_init_security], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CALLBACK_SECURITY_INODE_INIT_SECURITY, 1,
[security_inode_init_security wants callback])
[security_inode_init_security wants callback])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_SECURITY_INODE], [
ZFS_AC_KERNEL_SRC_SECURITY_INODE_INIT_SECURITY_6ARGS
ZFS_AC_KERNEL_SRC_SECURITY_INODE_INIT_SECURITY_CALLBACK
])
AC_DEFUN([ZFS_AC_KERNEL_SECURITY_INODE], [
ZFS_AC_KERNEL_SECURITY_INODE_INIT_SECURITY_6ARGS
ZFS_AC_KERNEL_SECURITY_INODE_INIT_SECURITY_CALLBACK
])

15
config/kernel-set-nlink.m4
View File

@ -2,18 +2,21 @@ dnl #
dnl # Linux v3.2-rc1 API change
dnl # SHA: bfe8684869601dacfcb2cd69ef8cfd9045f62170
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SET_NLINK], [
AC_MSG_CHECKING([whether set_nlink() is available])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SET_NLINK], [
ZFS_LINUX_TEST_SRC([set_nlink], [
#include <linux/fs.h>
],[
struct inode node;
unsigned int link = 0;
(void) set_nlink(&node, link);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SET_NLINK], [
AC_MSG_CHECKING([whether set_nlink() is available])
ZFS_LINUX_TEST_RESULT([set_nlink], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SET_NLINK, 1,
[set_nlink() is available])
AC_DEFINE(HAVE_SET_NLINK, 1, [set_nlink() is available])
],[
AC_MSG_RESULT(no)
])

16
config/kernel-setattr-prepare.m4
View File

@ -3,17 +3,21 @@ dnl # 4.9 API change
dnl # The inode_change_ok() function has been renamed setattr_prepare()
dnl # and updated to take a dentry rather than an inode.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SETATTR_PREPARE],
[AC_MSG_CHECKING([whether setattr_prepare() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SETATTR_PREPARE], [
ZFS_LINUX_TEST_SRC([setattr_prepare], [
#include <linux/fs.h>
], [
struct dentry *dentry = NULL;
struct iattr *attr = NULL;
int error;
int error __attribute__ ((unused)) =
setattr_prepare(dentry, attr);
])
])
error = setattr_prepare(dentry, attr);
], [setattr_prepare], [fs/attr.c], [
AC_DEFUN([ZFS_AC_KERNEL_SETATTR_PREPARE], [
AC_MSG_CHECKING([whether setattr_prepare() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare],
[setattr_prepare], [fs/attr.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SETATTR_PREPARE, 1,
[setattr_prepare() is available])

13
config/kernel-sget-args.m4
View File

@ -2,9 +2,8 @@ dnl #
dnl # 3.6 API change,
dnl # 'sget' now takes the mount flags as an argument.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_5ARG_SGET],
[AC_MSG_CHECKING([whether sget() wants 5 args])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SGET], [
ZFS_LINUX_TEST_SRC([sget_5args], [
#include <linux/fs.h>
],[
struct file_system_type *type = NULL;
@ -13,11 +12,15 @@ AC_DEFUN([ZFS_AC_KERNEL_5ARG_SGET],
int flags = 0;
void *data = NULL;
(void) sget(type, test, set, flags, data);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SGET], [
AC_MSG_CHECKING([whether sget() wants 5 args])
ZFS_LINUX_TEST_RESULT([sget_5args], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_5ARG_SGET, 1, [sget() wants 5 args])
],[
AC_MSG_RESULT(no)
])
])

21
config/kernel-show-options.m4
View File

@ -1,21 +1,26 @@
dnl #
dnl # Linux 3.3 API
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SHOW_OPTIONS], [
AC_MSG_CHECKING([whether sops->show_options() wants dentry])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SHOW_OPTIONS], [
ZFS_LINUX_TEST_SRC([super_operations_show_options], [
#include <linux/fs.h>
int show_options (struct seq_file * x, struct dentry * y) { return 0; };
int show_options(struct seq_file * x, struct dentry * y) {
return 0;
};
static struct super_operations sops __attribute__ ((unused)) = {
.show_options = show_options,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_SHOW_OPTIONS], [
AC_MSG_CHECKING([whether sops->show_options() wants dentry])
ZFS_LINUX_TEST_RESULT([super_operations_show_options], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_SHOW_OPTIONS_WITH_DENTRY, 1,
[sops->show_options() with dentry])
[sops->show_options() with dentry])
],[
AC_MSG_RESULT([no])
])

223
config/kernel-shrink.m4
View File

@ -4,9 +4,8 @@ dnl # The super_block structure now stores a per-filesystem shrinker.
dnl # This interface is preferable because it can be used to specifically
dnl # target only the zfs filesystem for pruning.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SHRINK], [
AC_MSG_CHECKING([whether super_block has s_shrink])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SUPER_BLOCK_S_SHRINK], [
ZFS_LINUX_TEST_SRC([super_block_s_shrink], [
#include <linux/fs.h>
int shrink(struct shrinker *s, struct shrink_control *sc)
@ -18,8 +17,12 @@ AC_DEFUN([ZFS_AC_KERNEL_SHRINK], [
.s_shrink.seeks = DEFAULT_SEEKS,
.s_shrink.batch = 0,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_SUPER_BLOCK_S_SHRINK], [
AC_MSG_CHECKING([whether super_block has s_shrink])
ZFS_LINUX_TEST_RESULT([super_block_s_shrink], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SHRINK, 1, [struct super_block has s_shrink])
@ -50,15 +53,18 @@ dnl # a list_head is used. Then to prevent the spinning from occurring
dnl # the .next pointer is set to the fs_supers list_head which ensures
dnl # the iterate_supers_type() function will always terminate.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_S_INSTANCES_LIST_HEAD], [
AC_MSG_CHECKING([whether super_block has s_instances list_head])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SUPER_BLOCK_S_INSTANCES_LIST_HEAD], [
ZFS_LINUX_TEST_SRC([super_block_s_instances_list_head], [
#include <linux/fs.h>
],[
struct super_block sb __attribute__ ((unused));
INIT_LIST_HEAD(&sb.s_instances);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SUPER_BLOCK_S_INSTANCES_LIST_HEAD], [
AC_MSG_CHECKING([whether super_block has s_instances list_head])
ZFS_LINUX_TEST_RESULT([super_block_s_instances_list_head], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_S_INSTANCES_LIST_HEAD, 1,
[struct super_block has s_instances list_head])
@ -67,9 +73,8 @@ AC_DEFUN([ZFS_AC_KERNEL_S_INSTANCES_LIST_HEAD], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_NR_CACHED_OBJECTS], [
AC_MSG_CHECKING([whether sops->nr_cached_objects() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_NR_CACHED_OBJECTS], [
ZFS_LINUX_TEST_SRC([nr_cached_objects], [
#include <linux/fs.h>
int nr_cached_objects(struct super_block *sb) { return 0; }
@ -78,19 +83,22 @@ AC_DEFUN([ZFS_AC_KERNEL_NR_CACHED_OBJECTS], [
sops __attribute__ ((unused)) = {
.nr_cached_objects = nr_cached_objects,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_NR_CACHED_OBJECTS], [
AC_MSG_CHECKING([whether sops->nr_cached_objects() exists])
ZFS_LINUX_TEST_RESULT([nr_cached_objects], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_NR_CACHED_OBJECTS, 1,
[sops->nr_cached_objects() exists])
[sops->nr_cached_objects() exists])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_FREE_CACHED_OBJECTS], [
AC_MSG_CHECKING([whether sops->free_cached_objects() exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_FREE_CACHED_OBJECTS], [
ZFS_LINUX_TEST_SRC([free_cached_objects], [
#include <linux/fs.h>
void free_cached_objects(struct super_block *sb, int x)
@ -100,11 +108,15 @@ AC_DEFUN([ZFS_AC_KERNEL_FREE_CACHED_OBJECTS], [
sops __attribute__ ((unused)) = {
.free_cached_objects = free_cached_objects,
};
],[
],[
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_FREE_CACHED_OBJECTS], [
AC_MSG_CHECKING([whether sops->free_cached_objects() exists])
ZFS_LINUX_TEST_RESULT([free_cached_objects], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FREE_CACHED_OBJECTS, 1,
[sops->free_cached_objects() exists])
[sops->free_cached_objects() exists])
],[
AC_MSG_RESULT(no)
])
@ -115,15 +127,19 @@ dnl # 3.12 API change
dnl # The nid member was added to struct shrink_control to support
dnl # NUMA-aware shrinkers.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SHRINK_CONTROL_HAS_NID], [
AC_MSG_CHECKING([whether shrink_control has nid])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SHRINK_CONTROL_HAS_NID], [
ZFS_LINUX_TEST_SRC([shrink_control_nid], [
#include <linux/fs.h>
],[
struct shrink_control sc __attribute__ ((unused));
unsigned long scnidsize __attribute__ ((unused)) =
sizeof(sc.nid);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SHRINK_CONTROL_HAS_NID], [
AC_MSG_CHECKING([whether shrink_control has nid])
ZFS_LINUX_TEST_RESULT([shrink_control_nid], [
AC_MSG_RESULT(yes)
AC_DEFINE(SHRINK_CONTROL_HAS_NID, 1,
[struct shrink_control has nid])
@ -132,84 +148,96 @@ AC_DEFUN([ZFS_AC_KERNEL_SHRINK_CONTROL_HAS_NID], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_SHRINKER_CALLBACK],[
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
dnl #
dnl # 2.6.23 to 2.6.34 API change
dnl # ->shrink(int nr_to_scan, gfp_t gfp_mask)
dnl #
AC_MSG_CHECKING([whether old 2-argument shrinker exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SHRINKER_CALLBACK], [
ZFS_LINUX_TEST_SRC([shrinker_cb_2arg], [
#include <linux/mm.h>
int shrinker_cb(int nr_to_scan, gfp_t gfp_mask) {
return 0;
}
int shrinker_cb(int nr_to_scan, gfp_t gfp_mask) { return 0; }
],[
struct shrinker cache_shrinker = {
.shrink = shrinker_cb,
.seeks = DEFAULT_SEEKS,
};
register_shrinker(&cache_shrinker);
])
ZFS_LINUX_TEST_SRC([shrinker_cb_3arg], [
#include <linux/mm.h>
int shrinker_cb(struct shrinker *shrink, int nr_to_scan,
gfp_t gfp_mask) { return 0; }
],[
struct shrinker cache_shrinker = {
.shrink = shrinker_cb,
.seeks = DEFAULT_SEEKS,
};
register_shrinker(&cache_shrinker);
])
ZFS_LINUX_TEST_SRC([shrinker_cb_shrink_control], [
#include <linux/mm.h>
int shrinker_cb(struct shrinker *shrink,
struct shrink_control *sc) { return 0; }
],[
struct shrinker cache_shrinker = {
.shrink = shrinker_cb,
.seeks = DEFAULT_SEEKS,
};
register_shrinker(&cache_shrinker);
])
ZFS_LINUX_TEST_SRC([shrinker_cb_shrink_control_split], [
#include <linux/mm.h>
unsigned long shrinker_cb(struct shrinker *shrink,
struct shrink_control *sc) { return 0; }
],[
struct shrinker cache_shrinker = {
.count_objects = shrinker_cb,
.scan_objects = shrinker_cb,
.seeks = DEFAULT_SEEKS,
};
register_shrinker(&cache_shrinker);
])
])
AC_DEFUN([ZFS_AC_KERNEL_SHRINKER_CALLBACK],[
dnl #
dnl # 2.6.23 to 2.6.34 API change
dnl # ->shrink(int nr_to_scan, gfp_t gfp_mask)
dnl #
AC_MSG_CHECKING([whether old 2-argument shrinker exists])
ZFS_LINUX_TEST_RESULT([shrinker_cb_2arg], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_2ARGS_OLD_SHRINKER_CALLBACK, 1,
[old shrinker callback wants 2 args])
[old shrinker callback wants 2 args])
],[
AC_MSG_RESULT(no)
dnl #
dnl # 2.6.35 - 2.6.39 API change
dnl # ->shrink(struct shrinker *,
dnl # int nr_to_scan, gfp_t gfp_mask)
dnl #
AC_MSG_CHECKING([whether old 3-argument shrinker exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/mm.h>
int shrinker_cb(struct shrinker *shrink, int nr_to_scan,
gfp_t gfp_mask) {
return 0;
}
],[
struct shrinker cache_shrinker = {
.shrink = shrinker_cb,
.seeks = DEFAULT_SEEKS,
};
register_shrinker(&cache_shrinker);
],[
ZFS_LINUX_TEST_RESULT([shrinker_cb_3arg], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_3ARGS_SHRINKER_CALLBACK, 1,
[old shrinker callback wants 3 args])
],[
AC_MSG_RESULT(no)
dnl #
dnl # 3.0 - 3.11 API change
dnl # ->shrink(struct shrinker *,
dnl # struct shrink_control *sc)
dnl #
AC_MSG_CHECKING(
[whether new 2-argument shrinker exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/mm.h>
int shrinker_cb(struct shrinker *shrink,
struct shrink_control *sc) {
return 0;
}
],[
struct shrinker cache_shrinker = {
.shrink = shrinker_cb,
.seeks = DEFAULT_SEEKS,
};
register_shrinker(&cache_shrinker);
],[
[whether new 2-argument shrinker exists])
ZFS_LINUX_TEST_RESULT([shrinker_cb_shrink_control], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_2ARGS_NEW_SHRINKER_CALLBACK, 1,
[new shrinker callback wants 2 args])
],[
AC_MSG_RESULT(no)
dnl #
dnl # 3.12 API change,
dnl # ->shrink() is logically split in to
@ -217,52 +245,61 @@ AC_DEFUN([ZFS_AC_KERNEL_SHRINKER_CALLBACK],[
dnl #
AC_MSG_CHECKING(
[whether ->count_objects callback exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/mm.h>
unsigned long shrinker_cb(
struct shrinker *shrink,
struct shrink_control *sc) {
return 0;
}
],[
struct shrinker cache_shrinker = {
.count_objects = shrinker_cb,
.scan_objects = shrinker_cb,
.seeks = DEFAULT_SEEKS,
};
register_shrinker(&cache_shrinker);
],[
ZFS_LINUX_TEST_RESULT(
[shrinker_cb_shrink_control_split], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SPLIT_SHRINKER_CALLBACK,
1, [->count_objects exists])
],[
AC_MSG_ERROR(error)
ZFS_LINUX_TEST_ERROR([shrinker])
])
])
])
])
EXTRA_KCFLAGS="$tmp_flags"
])
dnl #
dnl # 2.6.39 API change,
dnl # Shrinker adjust to use common shrink_control structure.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SHRINK_CONTROL_STRUCT], [
AC_MSG_CHECKING([whether struct shrink_control exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SHRINK_CONTROL_STRUCT], [
ZFS_LINUX_TEST_SRC([shrink_control_struct], [
#include <linux/mm.h>
],[
struct shrink_control sc __attribute__ ((unused));
sc.nr_to_scan = 0;
sc.gfp_mask = GFP_KERNEL;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SHRINK_CONTROL_STRUCT], [
AC_MSG_CHECKING([whether struct shrink_control exists])
ZFS_LINUX_TEST_RESULT([shrink_control_struct], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SHRINK_CONTROL_STRUCT, 1,
[struct shrink_control exists])
[struct shrink_control exists])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_SHRINKER], [
ZFS_AC_KERNEL_SRC_SUPER_BLOCK_S_SHRINK
ZFS_AC_KERNEL_SRC_SUPER_BLOCK_S_INSTANCES_LIST_HEAD
ZFS_AC_KERNEL_SRC_NR_CACHED_OBJECTS
ZFS_AC_KERNEL_SRC_FREE_CACHED_OBJECTS
ZFS_AC_KERNEL_SRC_SHRINK_CONTROL_HAS_NID
ZFS_AC_KERNEL_SRC_SHRINKER_CALLBACK
ZFS_AC_KERNEL_SRC_SHRINK_CONTROL_STRUCT
])
AC_DEFUN([ZFS_AC_KERNEL_SHRINKER], [
ZFS_AC_KERNEL_SUPER_BLOCK_S_SHRINK
ZFS_AC_KERNEL_SUPER_BLOCK_S_INSTANCES_LIST_HEAD
ZFS_AC_KERNEL_NR_CACHED_OBJECTS
ZFS_AC_KERNEL_FREE_CACHED_OBJECTS
ZFS_AC_KERNEL_SHRINK_CONTROL_HAS_NID
ZFS_AC_KERNEL_SHRINKER_CALLBACK
ZFS_AC_KERNEL_SHRINK_CONTROL_STRUCT
])

12
config/kernel-submit_bio.m4
View File

@ -3,15 +3,19 @@ dnl # 4.8 API change
dnl # The rw argument has been removed from submit_bio/submit_bio_wait.
dnl # Callers are now expected to set bio->bi_rw instead of passing it in.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SUBMIT_BIO], [
AC_MSG_CHECKING([whether submit_bio() wants 1 arg])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SUBMIT_BIO], [
ZFS_LINUX_TEST_SRC([submit_bio], [
#include <linux/bio.h>
],[
blk_qc_t blk_qc;
struct bio *bio = NULL;
blk_qc = submit_bio(bio);
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SUBMIT_BIO], [
AC_MSG_CHECKING([whether submit_bio() wants 1 arg])
ZFS_LINUX_TEST_RESULT([submit_bio], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_1ARG_SUBMIT_BIO, 1, [submit_bio() wants 1 arg])
],[

14
config/kernel-super-userns.m4
View File

@ -3,15 +3,19 @@ dnl # 4.8 API change
dnl # struct user_namespace was added to struct super_block as
dnl # super->s_user_ns member
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SUPER_USER_NS], [
AC_MSG_CHECKING([whether super_block->s_user_ns exists])
ZFS_LINUX_TRY_COMPILE([
AC_DEFUN([ZFS_AC_KERNEL_SRC_SUPER_USER_NS], [
ZFS_LINUX_TEST_SRC([super_user_ns], [
#include <linux/fs.h>
#include <linux/user_namespace.h>
],[
], [
struct super_block super;
super.s_user_ns = (struct user_namespace *)NULL;
],[
])
])
AC_DEFUN([ZFS_AC_KERNEL_SUPER_USER_NS], [
AC_MSG_CHECKING([whether super_block->s_user_ns exists])
ZFS_LINUX_TEST_RESULT([super_user_ns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SUPER_USER_NS, 1,
[super_block->s_user_ns exists])

52
config/kernel-timer.m4
View File

@ -8,13 +8,9 @@ dnl # kernels that support the new timer_list.func signature.
dnl #
dnl # Also check for the existence of flags in struct timer_list, they were
dnl # added in 4.1-rc8 via 0eeda71bc30d.
AC_DEFUN([ZFS_AC_KERNEL_TIMER_SETUP], [
AC_MSG_CHECKING([whether timer_setup() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_TIMER_SETUP], [
ZFS_LINUX_TEST_SRC([timer_setup], [
#include <linux/timer.h>
struct my_task_timer {
@ -24,13 +20,34 @@ AC_DEFUN([ZFS_AC_KERNEL_TIMER_SETUP], [
void task_expire(struct timer_list *tl)
{
struct my_task_timer *task_timer = from_timer(task_timer, tl, timer);
struct my_task_timer *task_timer =
from_timer(task_timer, tl, timer);
task_timer->data = 42;
}
],[
struct my_task_timer task_timer;
timer_setup(&task_timer.timer, task_expire, 0);
])
ZFS_LINUX_TEST_SRC([timer_list_function], [
#include <linux/timer.h>
void task_expire(struct timer_list *tl) {}
],[
struct timer_list tl;
tl.function = task_expire;
])
ZFS_LINUX_TEST_SRC([timer_list_flags], [
#include <linux/timer.h>
],[
struct timer_list tl;
tl.flags = 2;
])
])
AC_DEFUN([ZFS_AC_KERNEL_TIMER_SETUP], [
AC_MSG_CHECKING([whether timer_setup() is available])
ZFS_LINUX_TEST_RESULT([timer_setup], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KERNEL_TIMER_SETUP, 1,
[timer_setup() is available])
@ -39,14 +56,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TIMER_SETUP], [
])
AC_MSG_CHECKING([whether timer function expects timer_list])
ZFS_LINUX_TRY_COMPILE([
#include <linux/timer.h>
void task_expire(struct timer_list *tl) {}
],[
struct timer_list tl;
tl.function = task_expire;
],[
ZFS_LINUX_TEST_RESULT([timer_list_function], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KERNEL_TIMER_FUNCTION_TIMER_LIST, 1,
[timer_list.function gets a timer_list])
@ -55,19 +65,11 @@ AC_DEFUN([ZFS_AC_KERNEL_TIMER_SETUP], [
])
AC_MSG_CHECKING([whether struct timer_list has flags])
ZFS_LINUX_TRY_COMPILE([
#include <linux/timer.h>
],[
struct timer_list tl;
tl.flags = 2;
],[
ZFS_LINUX_TEST_RESULT([timer_list_flags], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KERNEL_TIMER_LIST_FLAGS, 1,
[struct timer_list has a flags member])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

Some files were not shown because too many files have changed in this diff Show More