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Breaking the world for a little bit. If anyone is going to continue 

working on this branch for the next few days I suggested you work
off of the 0.3.1 tag.  The following changes are fairly extensive
and are designed to make the SPL compatible with all kernels in
the range of 2.6.18-2.6.25.  There were 13 relevant API changes
between these releases and I have added the needed autoconf tests
to check for them.  However, this has not all been tested extensively.
I'll sort of the breakage on Fedora Core 9 and RHEL5 this week.

SPL_AC_TYPE_UINTPTR_T
SPL_AC_TYPE_KMEM_CACHE_T
SPL_AC_KMEM_CACHE_DESTROY_INT
SPL_AC_ATOMIC_PANIC_NOTIFIER
SPL_AC_3ARGS_INIT_WORK
SPL_AC_2ARGS_REGISTER_SYSCTL
SPL_AC_KMEM_CACHE_T
SPL_AC_KMEM_CACHE_CREATE_DTOR
SPL_AC_3ARG_KMEM_CACHE_CREATE_CTOR
SPL_AC_SET_SHRINKER
SPL_AC_PATH_IN_NAMEIDATA
SPL_AC_TASK_CURR
SPL_AC_CTL_UNNUMBERED



git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@119 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
This commit is contained in:
behlendo 2008-06-02 17:28:49 +00:00
parent 65a045dace
commit 57d862349b
25 changed files with 809 additions and 247 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
ChangeLog
View File

@ -1,3 +1,8 @@
2008-05-25 Brian Behlendorf <behlendorf1@llnl.gov>
* configure.ac, autoconf/* : Initial pass at resolving
API changes introduced by kernels newer than 2.6.18.
2008-05-21 Brian Behlendorf <behlendorf1@llnl.gov>
* : Tag spl-0.3.1

541
autoconf/spl-build.m4 Normal file
View File

@ -0,0 +1,541 @@
AC_DEFUN([SPL_AC_KERNEL], [
ver=`uname -r`
AC_ARG_WITH([linux],
AS_HELP_STRING([--with-linux=PATH],
[Path to kernel source]),
[kernelsrc="$withval"; kernelbuild="$withval"])
AC_ARG_WITH([linux-obj],
AS_HELP_STRING([--with-linux-obj=PATH],
[Path to kernel build objects]),
[kernelbuild="$withval"])
AC_MSG_CHECKING([kernel source directory])
if test -z "$kernelsrc"; then
kernelbuild=
sourcelink=/lib/modules/${ver}/source
buildlink=/lib/modules/${ver}/build
if test -e $sourcelink; then
kernelsrc=`(cd $sourcelink; /bin/pwd)`
fi
if test -e $buildlink; then
kernelbuild=`(cd $buildlink; /bin/pwd)`
fi
if test -z "$kernelsrc"; then
kernelsrc=$kernelbuild
fi
if test -z "$kernelsrc" -o -z "$kernelbuild"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Please specify the location of the kernel source
*** with the '--with-kernel=PATH' option])
fi
fi
AC_MSG_RESULT([$kernelsrc])
AC_MSG_CHECKING([kernel build directory])
AC_MSG_RESULT([$kernelbuild])
AC_MSG_CHECKING([kernel source version])
if test -r $kernelbuild/include/linux/version.h &&
fgrep -q UTS_RELEASE $kernelbuild/include/linux/version.h; then
kernsrcver=`(echo "#include <linux/version.h>";
echo "kernsrcver=UTS_RELEASE") |
cpp -I $kernelbuild/include |
grep "^kernsrcver=" | cut -d \" -f 2`
elif test -r $kernelbuild/include/linux/utsrelease.h &&
fgrep -q UTS_RELEASE $kernelbuild/include/linux/utsrelease.h; then
kernsrcver=`(echo "#include <linux/utsrelease.h>";
echo "kernsrcver=UTS_RELEASE") |
cpp -I $kernelbuild/include |
grep "^kernsrcver=" | cut -d \" -f 2`
fi
if test -z "$kernsrcver"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Cannot determine the version of the linux kernel source.
*** Please prepare the kernel before running this script])
fi
AC_MSG_RESULT([$kernsrcver])
kmoduledir=${INSTALL_MOD_PATH}/lib/modules/$kernsrcver
LINUX=${kernelsrc}
LINUX_OBJ=${kernelbuild}
AC_SUBST(LINUX)
AC_SUBST(LINUX_OBJ)
AC_SUBST(kmoduledir)
])
AC_DEFUN([SPL_AC_DEBUG], [
AC_MSG_CHECKING([whether debugging is enabled])
AC_ARG_ENABLE( [debug],
AS_HELP_STRING([--enable-debug],
[Enable generic debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG"
else
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DNDEBUG"
AC_DEFINE([NDEBUG], [1],
[Define to 1 to disable debug tracing])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
AC_DEFUN([SPL_AC_DEBUG_KMEM], [
AC_MSG_CHECKING([whether kmem debugging is enabled])
AC_ARG_ENABLE( [debug-kmem],
AS_HELP_STRING([--enable-debug-kmem],
[Enable kmem debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-kmem]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KMEM"
AC_DEFINE([DEBUG_KMEM], [1],
[Define to 1 to enable kmem debugging])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
AC_DEFUN([SPL_AC_DEBUG_MUTEX], [
AC_MSG_CHECKING([whether mutex debugging is enabled])
AC_ARG_ENABLE( [debug-mutex],
AS_HELP_STRING([--enable-debug-mutex],
[Enable mutex debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-mutex]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_MUTEX"
AC_DEFINE([DEBUG_MUTEX], [1],
[Define to 1 to enable mutex debugging])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
AC_DEFUN([SPL_AC_DEBUG_KSTAT], [
AC_MSG_CHECKING([whether kstat debugging is enabled])
AC_ARG_ENABLE( [debug-kstat],
AS_HELP_STRING([--enable-debug-kstat],
[Enable kstat debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-kstat]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KSTAT"
AC_DEFINE([DEBUG_KSTAT], [1],
[Define to 1 to enable kstat debugging])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
AC_DEFUN([SPL_AC_DEBUG_CALLB], [
AC_MSG_CHECKING([whether callb debugging is enabled])
AC_ARG_ENABLE( [debug-callb],
AS_HELP_STRING([--enable-debug-callb],
[Enable callb debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-callb]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_CALLB"
AC_DEFINE([DEBUG_CALLB], [1],
[Define to 1 to enable callb debugging])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
dnl #
dnl # SPL_LINUX_CONFTEST
dnl #
AC_DEFUN([SPL_LINUX_CONFTEST], [
cat >conftest.c <<_ACEOF
$1
_ACEOF
])
dnl #
dnl # SPL_LANG_PROGRAM(C)([PROLOGUE], [BODY])
dnl #
m4_define([SPL_LANG_PROGRAM], [
$1
int
main (void)
{
dnl Do *not* indent the following line: there may be CPP directives.
dnl Don't move the `;' right after for the same reason.
$2
;
return 0;
}
])
dnl #
dnl # SPL_LINUX_COMPILE_IFELSE / like AC_COMPILE_IFELSE
dnl #
AC_DEFUN([SPL_LINUX_COMPILE_IFELSE], [
m4_ifvaln([$1], [SPL_LINUX_CONFTEST([$1])])dnl
rm -f build/conftest.o build/conftest.mod.c build/conftest.ko build/Makefile
echo "obj-m := conftest.o" >build/Makefile
dnl AS_IF([AC_TRY_COMMAND(cp conftest.c build && make [$2] CC="$CC" -f $PWD/build/Makefile LINUXINCLUDE="-Iinclude -include include/linux/autoconf.h" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM SUBDIRS=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
AS_IF([AC_TRY_COMMAND(cp conftest.c build && make [$2] CC="$CC" LINUXINCLUDE="-Iinclude -include include/linux/autoconf.h" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
[$4],
[_AC_MSG_LOG_CONFTEST
m4_ifvaln([$5],[$5])dnl])dnl
rm -f build/conftest.o build/conftest.mod.c build/conftest.mod.o build/conftest.ko m4_ifval([$1], [build/conftest.c conftest.c])[]dnl
])
dnl #
dnl # SPL_LINUX_TRY_COMPILE like AC_TRY_COMPILE
dnl #
AC_DEFUN([SPL_LINUX_TRY_COMPILE],
[SPL_LINUX_COMPILE_IFELSE(
[AC_LANG_SOURCE([SPL_LANG_PROGRAM([[$1]], [[$2]])])],
[modules],
[test -s build/conftest.o],
[$3], [$4])
])
dnl #
dnl # SPL_LINUX_CONFIG
dnl #
AC_DEFUN([SPL_LINUX_CONFIG],
[AC_MSG_CHECKING([whether Linux was built with CONFIG_$1])
SPL_LINUX_TRY_COMPILE([
#ifndef AUTOCONF_INCLUDED
#include <linux/config.h>
#endif
],[
#ifndef CONFIG_$1
#error CONFIG_$1 not #defined
#endif
],[
AC_MSG_RESULT([yes])
$2
],[
AC_MSG_RESULT([no])
$3
])
])
dnl #
dnl # SPL_CHECK_SYMBOL_EXPORT
dnl # check symbol exported or not
dnl #
AC_DEFUN([SPL_CHECK_SYMBOL_EXPORT],
[AC_MSG_CHECKING([whether symbol $1 is exported])
grep -q -E '[[[:space:]]]$1[[[:space:]]]' $LINUX/Module.symvers 2>/dev/null
rc=$?
if test $rc -ne 0; then
export=0
for file in $2; do
grep -q -E "EXPORT_SYMBOL.*($1)" "$LINUX/$file" 2>/dev/null
rc=$?
if test $rc -eq 0; then
export=1
break;
fi
done
if test $export -eq 0; then
AC_MSG_RESULT([no])
$4
else
AC_MSG_RESULT([yes])
$3
fi
else
AC_MSG_RESULT([yes])
$3
fi
])
dnl #
dnl # 2.6.x API change
dnl # check if uintptr_t typedef is defined
dnl #
AC_DEFUN([SPL_AC_TYPE_UINTPTR_T],
[AC_MSG_CHECKING([whether kernel defines uintptr_t])
SPL_LINUX_TRY_COMPILE([
#include <linux/types.h>
],[
uintptr_t *ptr;
],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_UINTPTR_T, 1,
[kernel defines uintptr_t])
],[
AC_MSG_RESULT([no])
])
])
dnl #
dnl # 2.6.x API change
dnl # check if kmem_cache_t typedef is defined
dnl #
AC_DEFUN([SPL_AC_TYPE_KMEM_CACHE_T],
[AC_MSG_CHECKING([whether kernel defines kmem_cache_t])
SPL_LINUX_TRY_COMPILE([
#include <linux/slab.h>
],[
kmem_cache_t *cache;
],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_KMEM_CACHE_T, 1,
[kernel defines kmem_cache_t])
],[
AC_MSG_RESULT([no])
])
])
dnl #
dnl # 2.6.19 API change
dnl # kmem_cache_destroy() return void instead of int
dnl #
AC_DEFUN([SPL_AC_KMEM_CACHE_DESTROY_INT],
[AC_MSG_CHECKING([whether kmem_cache_destroy() returns int])
SPL_LINUX_TRY_COMPILE([
#include <linux/slab.h>
],[
int i = kmem_cache_destroy(NULL);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMEM_CACHE_DESTROY_INT, 1,
[kmem_cache_destroy() returns int])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.19 API change
dnl # panic_notifier_list use atomic_notifier operations
dnl #
AC_DEFUN([SPL_AC_ATOMIC_PANIC_NOTIFIER],
[AC_MSG_CHECKING([whether panic_notifier_list is atomic])
SPL_LINUX_TRY_COMPILE([
#include <linux/notifier.h>
#include <linux/kernel.h>
],[
struct atomic_notifier_head panic_notifier_list;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ATOMIC_PANIC_NOTIFIER, 1,
[panic_notifier_list is atomic])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.20 API change
dnl # INIT_WORK use 2 args and not store data inside
dnl #
AC_DEFUN([SPL_AC_3ARGS_INIT_WORK],
[AC_MSG_CHECKING([whether INIT_WORK wants 3 args])
SPL_LINUX_TRY_COMPILE([
#include <linux/workqueue.h>
],[
struct work_struct work;
INIT_WORK(&work, NULL, NULL);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_3ARGS_INIT_WORK, 1,
[INIT_WORK wants 3 args])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.21 api change.
dnl # 'register_sysctl_table' use only one argument instead of two
dnl #
AC_DEFUN([SPL_AC_2ARGS_REGISTER_SYSCTL],
[AC_MSG_CHECKING([whether register_sysctl_table() wants 2 args])
SPL_LINUX_TRY_COMPILE([
#include <linux/sysctl.h>
],[
return register_sysctl_table(NULL,0);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_2ARGS_REGISTER_SYSCTL, 1,
[register_sysctl_table() wants 2 args])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.21 API change
dnl # Use struct kmem_cache for missing kmem_cache_t
dnl #
AC_DEFUN([SPL_AC_KMEM_CACHE_T], [
AC_MSG_CHECKING([whether kernel has kmem_cache_t])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
SPL_LINUX_TRY_COMPILE([
#include <linux/slab.h>
],[
kmem_cache_t *cachep = NULL;
kmem_cache_free(cachep, NULL);
],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_KMEM_CACHE_T, 1,
[kernel has struct kmem_cache_t])
],[
AC_MSG_RESULT([no])
])
EXTRA_KCFLAGS="$tmp_flags"
])
dnl #
dnl # 2.6.23 API change
dnl # Slab no longer accepts a dtor argument
dnl #
AC_DEFUN([SPL_AC_KMEM_CACHE_CREATE_DTOR],
[AC_MSG_CHECKING([whether kmem_cache_create() has dtor arg])
SPL_LINUX_TRY_COMPILE([
#include <linux/slab.h>
],[
kmem_cache_create(NULL, 0, 0, 0, NULL, NULL);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMEM_CACHE_CREATE_DTOR, 1,
[kmem_cache_create() has dtor arg])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.x API change
dnl # Slab ctor no longer takes 3 args
dnl #
AC_DEFUN([SPL_AC_3ARG_KMEM_CACHE_CREATE_CTOR],
[AC_MSG_CHECKING([whether slab ctor wants 3 args])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
SPL_LINUX_TRY_COMPILE([
#include <linux/slab.h>
],[
void (*ctor)(void *,struct kmem_cache *,unsigned long) = NULL;
#ifdef HAVE_KMEM_CACHE_CREATE_DTOR
kmem_cache_create(NULL, 0, 0, 0, ctor, NULL);
#else
kmem_cache_create(NULL, 0, 0, 0, ctor);
#endif
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_3ARG_KMEM_CACHE_CREATE_CTOR, 1,
[slab ctor wants 3 args])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
dnl #
dnl # 2.6.x API change
dnl # Old set_shrinker API replaced with register_shrinker
dnl #
AC_DEFUN([SPL_AC_SET_SHRINKER], [
AC_MSG_CHECKING([whether set_shrinker() available])
SPL_LINUX_TRY_COMPILE([
#include <linux/mm.h>
],[
return set_shrinker(DEFAULT_SEEKS, NULL);
],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_SET_SHRINKER, 1,
[set_shrinker() available])
],[
AC_MSG_RESULT([no])
])
])
dnl #
dnl # 2.6.x API change
dnl # struct path entry added to struct nameidata
dnl #
AC_DEFUN([SPL_AC_PATH_IN_NAMEIDATA],
[AC_MSG_CHECKING([whether struct path used in struct nameidata])
SPL_LINUX_TRY_COMPILE([
#include <linux/namei.h>
],[
struct nameidata nd;
nd.path.mnt = NULL;
nd.path.dentry = NULL;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PATH_IN_NAMEIDATA, 1,
[struct path used in struct nameidata])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # Custom SPL patch may export this system it is not required
dnl #
AC_DEFUN([SPL_AC_TASK_CURR], [
SPL_CHECK_SYMBOL_EXPORT([task_curr], [kernel/sched.c],
[AC_DEFINE(HAVE_TASK_CURR, 1, [task_curr() exported])],
[])
])
dnl #
dnl # 2.6.x API change
dnl # Use CTL_UNNUMBERED when binary sysctl is not required
dnl #
AC_DEFUN([SPL_AC_CTL_UNNUMBERED],
[AC_MSG_CHECKING([whether unnumbered sysctl support exists])
SPL_LINUX_TRY_COMPILE([
#include <linux/sysctl.h>
],[
#ifndef CTL_UNNUMBERED
#error CTL_UNNUMBERED undefined
#endif
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CTL_UNNUMBERED, 1,
[unnumbered sysctl support exists])
],[
AC_MSG_RESULT(no)
])
])

4
autogen.sh
View File

@ -3,8 +3,8 @@
find . -type d -name .deps | xargs rm -rf
rm -rf config.guess config.sub ltmain.sh
libtoolize --automake
aclocal 2>/dev/null &&
aclocal -I autoconf 2>/dev/null &&
autoheader &&
automake --add-missing --include-deps # 2>/dev/null &&
automake --add-missing --include-deps 2>/dev/null
autoconf

194
configure.ac
View File

@ -28,187 +28,14 @@ AC_INIT
AC_CANONICAL_SYSTEM
AM_INIT_AUTOMAKE(spl, 0.3.1)
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_HEADERS([spl_config.h])
AC_PROG_INSTALL
AC_PROG_CC
AC_PROG_LIBTOOL
kernelsrc=
kernelbuild=
AC_DEFUN([SPL_AC_KERNEL], [
ver=`uname -r`
AC_ARG_WITH([linux],
AS_HELP_STRING([--with-linux=PATH],
[Path to kernel source]),
[kernelsrc="$withval"; kernelbuild="$withval"])
AC_ARG_WITH([linux-obj],
AS_HELP_STRING([--with-linux-obj=PATH],
[Path to kernel build objects]),
[kernelbuild="$withval"])
AC_MSG_CHECKING([kernel source directory])
if test -z "$kernelsrc"; then
kernelbuild=
sourcelink=/lib/modules/${ver}/source
buildlink=/lib/modules/${ver}/build
if test -e $sourcelink; then
kernelsrc=`(cd $sourcelink; /bin/pwd)`
fi
if test -e $buildlink; then
kernelbuild=`(cd $buildlink; /bin/pwd)`
fi
if test -z "$kernelsrc"; then
kernelsrc=$kernelbuild
fi
if test -z "$kernelsrc" -o -z "$kernelbuild"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Please specify the location of the kernel source
*** with the '--with-kernel=PATH' option])
fi
fi
AC_MSG_RESULT([$kernelsrc])
AC_MSG_CHECKING([kernel build directory])
AC_MSG_RESULT([$kernelbuild])
AC_MSG_CHECKING([kernel source version])
if test -r $kernelbuild/include/linux/version.h &&
fgrep -q UTS_RELEASE $kernelbuild/include/linux/version.h; then
kernsrcver=`(echo "#include <linux/version.h>";
echo "kernsrcver=UTS_RELEASE") |
cpp -I $kernelbuild/include |
grep "^kernsrcver=" | cut -d \" -f 2`
elif test -r $kernelbuild/include/linux/utsrelease.h &&
fgrep -q UTS_RELEASE $kernelbuild/include/linux/utsrelease.h; then
kernsrcver=`(echo "#include <linux/utsrelease.h>";
echo "kernsrcver=UTS_RELEASE") |
cpp -I $kernelbuild/include |
grep "^kernsrcver=" | cut -d \" -f 2`
fi
if test -z "$kernsrcver"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Cannot determine the version of the linux kernel source.
*** Please prepare the kernel before running this script])
fi
AC_MSG_RESULT([$kernsrcver])
kmoduledir=${INSTALL_MOD_PATH}/lib/modules/$kernsrcver
AC_SUBST(kernelsrc)
AC_SUBST(kmoduledir)
])
AC_DEFUN([SPL_AC_DEBUG], [
AC_MSG_CHECKING([whether debugging is enabled])
AC_ARG_ENABLE( [debug],
AS_HELP_STRING([--enable-debug],
[Enable generic debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG"
else
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DNDEBUG"
AC_DEFINE([NDEBUG], [1],
[Define to 1 to disable debug tracing])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
AC_DEFUN([SPL_AC_DEBUG_KMEM], [
AC_MSG_CHECKING([whether kmem debugging is enabled])
AC_ARG_ENABLE( [debug-kmem],
AS_HELP_STRING([--enable-debug-kmem],
[Enable kmem debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-kmem]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KMEM"
AC_DEFINE([DEBUG_KMEM], [1],
[Define to 1 to enable kmem debugging])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
AC_DEFUN([SPL_AC_DEBUG_MUTEX], [
AC_MSG_CHECKING([whether mutex debugging is enabled])
AC_ARG_ENABLE( [debug-mutex],
AS_HELP_STRING([--enable-debug-mutex],
[Enable mutex debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-mutex]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_MUTEX"
AC_DEFINE([DEBUG_MUTEX], [1],
[Define to 1 to enable mutex debugging])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
AC_DEFUN([SPL_AC_DEBUG_KSTAT], [
AC_MSG_CHECKING([whether kstat debugging is enabled])
AC_ARG_ENABLE( [debug-kstat],
AS_HELP_STRING([--enable-debug-kstat],
[Enable kstat debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-kstat]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KSTAT"
AC_DEFINE([DEBUG_KSTAT], [1],
[Define to 1 to enable kstat debugging])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
AC_DEFUN([SPL_AC_DEBUG_CALLB], [
AC_MSG_CHECKING([whether callb debugging is enabled])
AC_ARG_ENABLE( [debug-callb],
AS_HELP_STRING([--enable-debug-callb],
[Enable callb debug support (default off)]),
[ case "$enableval" in
yes) spl_ac_debug=yes ;;
no) spl_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-callb]) ;;
esac ]
)
if test "$spl_ac_debug" = yes; then
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_CALLB"
AC_DEFINE([DEBUG_CALLB], [1],
[Define to 1 to enable callb debugging])
fi
AC_MSG_RESULT([${spl_ac_debug=no}])
])
LINUX=
LINUX_OBJ=
SPL_AC_KERNEL
SPL_AC_DEBUG
@ -216,6 +43,19 @@ SPL_AC_DEBUG_KMEM
SPL_AC_DEBUG_MUTEX
SPL_AC_DEBUG_KSTAT
SPL_AC_DEBUG_CALLB
SPL_AC_TYPE_UINTPTR_T
SPL_AC_TYPE_KMEM_CACHE_T
SPL_AC_KMEM_CACHE_DESTROY_INT
SPL_AC_ATOMIC_PANIC_NOTIFIER
SPL_AC_3ARGS_INIT_WORK
SPL_AC_2ARGS_REGISTER_SYSCTL
SPL_AC_KMEM_CACHE_T
SPL_AC_KMEM_CACHE_CREATE_DTOR
SPL_AC_3ARG_KMEM_CACHE_CREATE_CTOR
SPL_AC_SET_SHRINKER
SPL_AC_PATH_IN_NAMEIDATA
SPL_AC_TASK_CURR
SPL_AC_CTL_UNNUMBERED
TOPDIR=`/bin/pwd`
@ -223,7 +63,7 @@ TOPDIR=`/bin/pwd`
KERNELMAKE_PARAMS=
KERNELCPPFLAGS="${KERNELCPPFLAGS} -I$TOPDIR -I$TOPDIR/include"
if test "$kernelbuild" != "$kernelsrc"; then
if test "${LINUX_OBJ}" != "${LINUX}"; then
KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$kernelbuild"
fi

13
include/sys/kmem.h
View File

@ -41,6 +41,7 @@ extern "C" {
#include <linux/rwsem.h>
#include <linux/hash.h>
#include <linux/ctype.h>
#include <sys/types.h>
#include <sys/debug.h>
/*
* Memory allocation interfaces
@ -316,15 +317,6 @@ kmem_alloc_tryhard(size_t size, size_t *alloc_size, int kmflags)
#define KMC_REAP_CHUNK 256
#define KMC_DEFAULT_SEEKS DEFAULT_SEEKS
/* Defined by linux slab.h
* typedef struct kmem_cache_s kmem_cache_t;
*/
/* No linux analog
* extern int kmem_ready;
* extern pgcnt_t kmem_reapahead;
*/
#ifdef DEBUG_KMEM_UNIMPLEMENTED
static __inline__ void kmem_init(void) {
#error "kmem_init() not implemented"
@ -380,6 +372,7 @@ __kmem_cache_create(char *name, size_t size, size_t align,
extern int __kmem_cache_destroy(kmem_cache_t *cache);
extern void *__kmem_cache_alloc(kmem_cache_t *cache, gfp_t flags);
extern void __kmem_cache_free(kmem_cache_t *cache, void *obj);
extern void __kmem_reap(void);
int kmem_init(void);
@ -389,7 +382,7 @@ void kmem_fini(void);
__kmem_cache_create(name,size,align,ctor,dtor,rclm,priv,vmp,flags)
#define kmem_cache_destroy(cache) __kmem_cache_destroy(cache)
#define kmem_cache_alloc(cache, flags) __kmem_cache_alloc(cache, flags)
#define kmem_cache_free(cache, ptr) kmem_cache_free(cache, ptr)
#define kmem_cache_free(cache, obj) __kmem_cache_free(cache, obj)
#define kmem_cache_reap_now(cache) kmem_cache_shrink(cache)
#define kmem_reap() __kmem_reap()

9
include/sys/proc.h
View File

@ -39,6 +39,15 @@
#include <sys/kstat.h>
#include <sys/debug.h>
#ifdef CONFIG_SYSCTL
#ifdef HAVE_2ARGS_REGISTER_SYSCTL
#define spl_register_sysctl_table(t, a) register_sysctl_table(t, a)
#else
#define spl_register_sysctl_table(t, a) register_sysctl_table(t)
#endif /* HAVE_2ARGS_REGISTER_SYSCTL */
#define spl_unregister_sysctl_table(t) unregister_sysctl_table(t)
#endif /* CONFIG_SYSCTL */
#ifdef DEBUG_KSTAT
extern struct proc_dir_entry *proc_sys_spl_kstat;
struct proc_dir_entry *proc_dir_entry_find(struct proc_dir_entry *root,

12
include/sys/sysmacros.h
View File

@ -197,6 +197,18 @@ extern int ddi_strtoul(const char *str, char **nptr,
#define offsetof(s, m) ((size_t)(&(((s *)0)->m)))
#endif
#ifdef HAVE_3ARGS_INIT_WORK
#define spl_init_work(wq,cb,d) INIT_WORK((wq), (void *)(cb), (void *)(d))
#define spl_get_work_data(type,field,data) (data)
#else
#define spl_init_work(wq,cb,d) INIT_WORK((wq), (void *)(cb));
#define spl_get_work_data(type,field,data) container_of(data,type,field)
#endif
#ifdef __cplusplus
}
#endif

10
include/sys/types.h
View File

@ -7,9 +7,17 @@ extern "C" {
#include <linux/types.h>
#include <sys/sysmacros.h>
#include "spl_config.h"
#ifndef HAVE_UINTPTR_T
typedef unsigned long uintptr_t;
#endif
#ifndef HAVE_KMEM_CACHE_T
typedef struct kmem_cache kmem_cache_t;
#endif
typedef enum { B_FALSE=0, B_TRUE=1 } boolean_t;
typedef unsigned long uintptr_t;
typedef unsigned long intptr_t;
typedef unsigned long ulong_t;
typedef unsigned int uint_t;

9
include/sys/vnode.h
View File

@ -40,6 +40,7 @@ extern "C" {
#include <linux/namei.h>
#include <linux/file.h>
#include <linux/fs.h>
#include <linux/mount.h>
#include <sys/kmem.h>
#include <sys/mutex.h>
#include <sys/types.h>
@ -92,6 +93,14 @@ extern "C" {
#define B_INVAL 0x01
#define B_TRUNC 0x02
#ifdef HAVE_PATH_IN_NAMEIDATA
# define nd_dentry path.dentry
# define nd_mnt path.mnt
#else
# define nd_dentry dentry
# define nd_mnt mnt
#endif
typedef enum vtype {
VNON = 0,
VREG = 1,

2
lib/list.c
View File

@ -26,7 +26,7 @@
#ifdef HAVE_CONFIG_H
# include "config.h"
# include "spl_config.h"
#endif /* HAVE_CONFIG_H */
#ifdef WITH_PTHREADS

4
modules/Makefile.in
View File

@ -2,9 +2,9 @@ subdir-m += spl
subdir-m += splat
all:
$(MAKE) -C @kernelsrc@ SUBDIRS=`pwd` @KERNELMAKE_PARAMS@ modules
$(MAKE) -C @LINUX@ SUBDIRS=`pwd` @KERNELMAKE_PARAMS@ modules
install uninstall clean distclean maintainer-clean distdir:
$(MAKE) -C @kernelsrc@ SUBDIRS=`pwd` @KERNELMAKE_PARAMS@ $@
$(MAKE) -C @LINUX@ SUBDIRS=`pwd` @KERNELMAKE_PARAMS@ $@
check:

2
modules/spl/Makefile.in
View File

@ -4,7 +4,7 @@ MODULES := spl
DISTFILES = Makefile.in \
spl-kmem.c spl-rwlock.c spl-taskq.c \
spl-thread.c spl-generic.c
CPPFLAGS += @KERNELCPPFLAGS@
EXTRA_CFLAGS = @KERNELCPPFLAGS@
# Solaris porting layer module
obj-m := spl.o

14
modules/spl/spl-debug.c
View File

@ -44,7 +44,6 @@
#include <sys/proc.h>
#include <sys/debug.h>
#include <spl-ctl.h>
#include "config.h"
#ifdef DEBUG_SUBSYSTEM
#undef DEBUG_SUBSYSTEM
@ -1118,7 +1117,7 @@ void spl_debug_dumpstack(struct task_struct *tsk)
tsk = current;
printk(KERN_ERR "SPL: Showing stack for process %d\n", tsk->pid);
show_task(tsk);
dump_stack();
}
EXPORT_SYMBOL(spl_debug_dumpstack);
@ -1255,8 +1254,13 @@ debug_init(void)
if (rc)
return rc;
#ifdef HAVE_ATOMIC_PANIC_NOTIFIER
atomic_notifier_chain_register(&panic_notifier_list,
&spl_panic_notifier);
#else
notifier_chain_register(&panic_notifier_list,
&spl_panic_notifier);
#endif
return rc;
}
@ -1306,8 +1310,14 @@ trace_fini(void)
void
debug_fini(void)
{
#ifdef HAVE_ATOMIC_PANIC_NOTIFIER
atomic_notifier_chain_unregister(&panic_notifier_list,
&spl_panic_notifier);
#else
notifier_chain_unregister(&panic_notifier_list,
&spl_panic_notifier);
#endif
trace_fini();
return;

1
modules/spl/spl-err.c
View File

@ -26,7 +26,6 @@
#include <sys/sysmacros.h>
#include <sys/cmn_err.h>
#include "config.h"
#ifdef DEBUG_SUBSYSTEM
#undef DEBUG_SUBSYSTEM

3
modules/spl/spl-generic.c
View File

@ -33,7 +33,6 @@
#include <sys/proc.h>
#include <sys/kstat.h>
#include <linux/kmod.h>
#include "config.h"
#ifdef DEBUG_SUBSYSTEM
#undef DEBUG_SUBSYSTEM
@ -101,7 +100,7 @@ set_hostid(void)
char sh_path[] = "/bin/sh";
char *argv[] = { sh_path,
"-c",
"/usr/bin/hostid >/proc/sys/spl/hostid",
"/usr/bin/hostid >/proc/sys/kernel/spl/hostid",
NULL };
char *envp[] = { "HOME=/",
"TERM=linux",

89
modules/spl/spl-kmem.c
View File

@ -104,7 +104,15 @@ typedef struct kmem_cache_cb {
static struct rw_semaphore kmem_cache_cb_sem;
static struct list_head kmem_cache_cb_list;
#ifdef HAVE_SET_SHRINKER
static struct shrinker *kmem_cache_shrinker;
#else
static int kmem_cache_generic_shrinker(int nr_to_scan, unsigned int gfp_mask);
static struct shrinker kmem_cache_shrinker = {
.shrink = kmem_cache_generic_shrinker,
.seeks = KMC_DEFAULT_SEEKS,
};
#endif
/* Function must be called while holding the kmem_cache_cb_sem
* Because kmem_cache_t is an opaque datatype we're forced to
@ -166,19 +174,21 @@ kmem_cache_remove_cache_cb(kmem_cache_cb_t *kcc)
}
}
#ifdef HAVE_3ARG_KMEM_CACHE_CREATE_CTOR
static void
kmem_cache_generic_constructor(void *ptr, kmem_cache_t *cache, unsigned long flags)
kmem_cache_generic_constructor(void *ptr, kmem_cache_t *cache,
unsigned long flags)
{
kmem_cache_cb_t *kcc;
kmem_constructor_t constructor;
void *private;
ASSERT(flags & SLAB_CTOR_CONSTRUCTOR);
/* Ensure constructor verifies are not passed to the registered
* constructors. This may not be safe due to the Solaris constructor
* not being aware of how to handle the SLAB_CTOR_VERIFY flag
*/
ASSERT(flags & SLAB_CTOR_CONSTRUCTOR);
if (flags & SLAB_CTOR_VERIFY)
return;
@ -186,7 +196,15 @@ kmem_cache_generic_constructor(void *ptr, kmem_cache_t *cache, unsigned long fla
flags = KM_NOSLEEP;
else
flags = KM_SLEEP;
#else
static void
kmem_cache_generic_constructor(kmem_cache_t *cache, void *ptr)
{
kmem_cache_cb_t *kcc;
kmem_constructor_t constructor;
void *private;
int flags = KM_NOSLEEP;
#endif
/* We can be called with interrupts disabled so it is critical that
* this function and the registered constructor never sleep.
*/
@ -244,7 +262,7 @@ kmem_cache_generic_destructor(void *ptr, kmem_cache_t *cache, unsigned long flag
atomic_dec(&kcc->kcc_ref);
}
/* XXX - Arguments are ignored */
/* Arguments are ignored */
static int
kmem_cache_generic_shrinker(int nr_to_scan, unsigned int gfp_mask)
{
@ -306,6 +324,7 @@ kmem_cache_generic_shrinker(int nr_to_scan, unsigned int gfp_mask)
#undef kmem_cache_create
#undef kmem_cache_destroy
#undef kmem_cache_alloc
#undef kmem_cache_free
kmem_cache_t *
__kmem_cache_create(char *name, size_t size, size_t align,
@ -329,23 +348,32 @@ __kmem_cache_create(char *name, size_t size, size_t align,
RETURN(NULL);
strcpy(cache_name, name);
#ifdef HAVE_KMEM_CACHE_CREATE_DTOR
cache = kmem_cache_create(cache_name, size, align, flags,
kmem_cache_generic_constructor,
kmem_cache_generic_destructor);
#else
cache = kmem_cache_create(cache_name, size, align, flags, NULL);
#endif
if (cache == NULL)
RETURN(NULL);
/* Register shared shrinker function on initial cache create */
down_read(&kmem_cache_cb_sem);
if (list_empty(&kmem_cache_cb_list)) {
kmem_cache_shrinker = set_shrinker(KMC_DEFAULT_SEEKS,
#ifdef HAVE_SET_SHRINKER
kmem_cache_shrinker =
set_shrinker(KMC_DEFAULT_SEEKS,
kmem_cache_generic_shrinker);
if (kmem_cache_shrinker == NULL) {
kmem_cache_destroy(cache);
up_read(&kmem_cache_cb_sem);
RETURN(NULL);
}
#else
register_shrinker(&kmem_cache_shrinker);
#endif
}
up_read(&kmem_cache_cb_sem);
@ -353,7 +381,11 @@ __kmem_cache_create(char *name, size_t size, size_t align,
reclaim, priv, vmp);
if (kcc == NULL) {
if (shrinker_flag) /* New shrinker registered must be removed */
#ifdef HAVE_SET_SHRINKER
remove_shrinker(kmem_cache_shrinker);
#else
unregister_shrinker(&kmem_cache_shrinker);
#endif
kmem_cache_destroy(cache);
RETURN(NULL);
@ -383,7 +415,13 @@ __kmem_cache_destroy(kmem_cache_t *cache)
up_read(&kmem_cache_cb_sem);
name = (char *)kmem_cache_name(cache);
#ifdef HAVE_KMEM_CACHE_DESTROY_INT
rc = kmem_cache_destroy(cache);
#else
kmem_cache_destroy(cache);
rc = 0;
#endif
atomic_dec(&kcc->kcc_ref);
kmem_cache_remove_cache_cb(kcc);
@ -392,7 +430,11 @@ __kmem_cache_destroy(kmem_cache_t *cache)
/* Unregister generic shrinker on removal of all caches */
down_read(&kmem_cache_cb_sem);
if (list_empty(&kmem_cache_cb_list))
#ifdef HAVE_SET_SHRINKER
remove_shrinker(kmem_cache_shrinker);
#else
unregister_shrinker(&kmem_cache_shrinker);
#endif
up_read(&kmem_cache_cb_sem);
RETURN(rc);
@ -409,22 +451,45 @@ EXPORT_SYMBOL(__kmem_cache_destroy);
void *
__kmem_cache_alloc(kmem_cache_t *cache, gfp_t flags)
{
void *rc;
void *obj;
ENTRY;
restart:
rc = kmem_cache_alloc(cache, flags);
if ((rc == NULL) && (flags & KM_SLEEP)) {
obj = kmem_cache_alloc(cache, flags);
if ((obj == NULL) && (flags & KM_SLEEP)) {
#ifdef DEBUG_KMEM
atomic64_inc(&kmem_cache_alloc_failed);
#endif /* DEBUG_KMEM */
GOTO(restart, rc);
GOTO(restart, obj);
}
RETURN(rc);
/* When destructor support is removed we must be careful not to
* use the provided constructor which will end up being called
* more often than the destructor which we only call on free. Thus
* we many call the proper constructor when there is no destructor.
*/
#ifndef HAVE_KMEM_CACHE_CREATE_DTOR
#ifdef HAVE_3ARG_KMEM_CACHE_CREATE_CTOR
kmem_cache_generic_constructor(obj, cache, flags);
#else
kmem_cache_generic_constructor(cache, obj);
#endif
#endif
RETURN(obj);
}
EXPORT_SYMBOL(__kmem_cache_alloc);
void
__kmem_cache_free(kmem_cache_t *cache, void *obj)
{
#ifndef HAVE_KMEM_CACHE_CREATE_DTOR
kmem_cache_generic_destructor(obj, cache, 0);
#endif
kmem_cache_free(cache, obj);
}
EXPORT_SYMBOL(__kmem_cache_free);
void
__kmem_reap(void)
{

1
modules/spl/spl-kobj.c
View File

@ -25,7 +25,6 @@
*/
#include <sys/kobj.h>
#include "config.h"
#ifdef DEBUG_SUBSYSTEM
#undef DEBUG_SUBSYSTEM

1
modules/spl/spl-module.c
View File

@ -26,7 +26,6 @@
#include <sys/sysmacros.h>
#include <sys/sunddi.h>
#include "config.h"
#ifdef DEBUG_SUBSYSTEM
#undef DEBUG_SUBSYSTEM

5
modules/spl/spl-mutex.c
View File

@ -171,6 +171,11 @@ __mutex_tryenter(kmutex_t *mp)
}
EXPORT_SYMBOL(__mutex_tryenter);
#ifndef HAVE_TASK_CURR
#define task_curr(owner) 0
#endif
static void
mutex_enter_adaptive(kmutex_t *mp)
{

70
modules/spl/spl-proc.c
View File

@ -39,8 +39,10 @@ static unsigned long table_max = ~0;
#ifdef CONFIG_SYSCTL
static struct ctl_table_header *spl_header = NULL;
#if defined(DEBUG_MUTEX) || defined(DEBUG_KMEM) || defined(DEBUG_KSTAT)
static struct proc_dir_entry *proc_sys = NULL;
static struct proc_dir_entry *proc_sys_spl = NULL;
#endif
#ifdef DEBUG_MUTEX
static struct proc_dir_entry *proc_sys_spl_mutex = NULL;
static struct proc_dir_entry *proc_sys_spl_mutex_stats = NULL;
@ -53,6 +55,49 @@ struct proc_dir_entry *proc_sys_spl_kstat = NULL;
#endif
#endif
#ifdef HAVE_CTL_UNNUMBERED
#define CTL_SPL CTL_UNNUMBERED
#define CTL_SPL_DEBUG CTL_UNNUMBERED
#define CTL_SPL_MUTEX CTL_UNNUMBERED
#define CTL_SPL_KMEM CTL_UNNUMBERED
#define CTL_SPL_KSTAT CTL_UNNUMBERED
#define CTL_VERSION CTL_UNNUMBERED /* Version */
#define CTL_HOSTID CTL_UNNUMBERED /* Host id by /usr/bin/hostid */
#define CTL_HW_SERIAL CTL_UNNUMBERED /* HW serial number by hostid */
#define CTL_DEBUG_SUBSYS CTL_UNNUMBERED /* Debug subsystem */
#define CTL_DEBUG_MASK CTL_UNNUMBERED /* Debug mask */
#define CTL_DEBUG_PRINTK CTL_UNNUMBERED /* All messages to console */
#define CTL_DEBUG_MB CTL_UNNUMBERED /* Debug buffer size */
#define CTL_DEBUG_BINARY CTL_UNNUMBERED /* Binary data in buffer */
#define CTL_DEBUG_CATASTROPHE CTL_UNNUMBERED /* Set if BUG'd or panic'd */
#define CTL_DEBUG_PANIC_ON_BUG CTL_UNNUMBERED /* Should panic on BUG */
#define CTL_DEBUG_PATH CTL_UNNUMBERED /* Dump log location */
#define CTL_DEBUG_DUMP CTL_UNNUMBERED /* Dump debug buffer to file */
#define CTL_DEBUG_FORCE_BUG CTL_UNNUMBERED /* Hook to force a BUG */
#define CTL_DEBUG_STACK_SIZE CTL_UNNUMBERED /* Max observed stack size */
#define CTL_CONSOLE_RATELIMIT CTL_UNNUMBERED /* Ratelimit console messages */
#define CTL_CONSOLE_MAX_DELAY_CS CTL_UNNUMBERED /* Max delay skip messages */
#define CTL_CONSOLE_MIN_DELAY_CS CTL_UNNUMBERED /* Init delay skip messages */
#define CTL_CONSOLE_BACKOFF CTL_UNNUMBERED /* Delay increase factor */
#ifdef DEBUG_KMEM
#define CTL_KMEM_KMEMUSED CTL_UNNUMBERED /* Alloc'd kmem bytes */
#define CTL_KMEM_KMEMMAX CTL_UNNUMBERED /* Max alloc'd by kmem bytes */
#define CTL_KMEM_VMEMUSED CTL_UNNUMBERED /* Alloc'd vmem bytes */
#define CTL_KMEM_VMEMMAX CTL_UNNUMBERED /* Max alloc'd by vmem bytes */
#define CTL_KMEM_ALLOC_FAILED CTL_UNNUMBERED /* Cache allocations failed */
#endif
#define CTL_MUTEX_STATS CTL_UNNUMBERED /* Global mutex statistics */
#define CTL_MUTEX_STATS_PER CTL_UNNUMBERED /* Per mutex statistics */
#define CTL_MUTEX_SPIN_MAX CTL_UNNUMBERED /* Max mutex spin iterations */
#else /* HAVE_CTL_UNNUMBERED */
#define CTL_SPL 0x87
#define CTL_SPL_DEBUG 0x88
#define CTL_SPL_MUTEX 0x89
@ -82,9 +127,9 @@ enum {
CTL_CONSOLE_BACKOFF, /* Delay increase factor */
#ifdef DEBUG_KMEM
CTL_KMEM_KMEMUSED, /* Crrently alloc'd kmem bytes */
CTL_KMEM_KMEMUSED, /* Alloc'd kmem bytes */
CTL_KMEM_KMEMMAX, /* Max alloc'd by kmem bytes */
CTL_KMEM_VMEMUSED, /* Currently alloc'd vmem bytes */
CTL_KMEM_VMEMUSED, /* Alloc'd vmem bytes */
CTL_KMEM_VMEMMAX, /* Max alloc'd by vmem bytes */
CTL_KMEM_ALLOC_FAILED, /* Cache allocation failed */
#endif
@ -93,6 +138,7 @@ enum {
CTL_MUTEX_STATS_PER, /* Per mutex statistics */
CTL_MUTEX_SPIN_MAX, /* Maximum mutex spin iterations */
};
#endif /* HAVE_CTL_UNNUMBERED */
static int
proc_copyin_string(char *kbuffer, int kbuffer_size,
@ -778,6 +824,16 @@ static struct ctl_table spl_dir[] = {
{ 0 }
};
static struct ctl_table spl_root[] = {
{
.ctl_name = CTL_KERN,
.procname = "kernel",
.mode = 0555,
.child = spl_dir,
},
{ 0 }
};
static int
proc_dir_entry_match(int len, const char *name, struct proc_dir_entry *de)
{
@ -818,10 +874,11 @@ proc_init(void)
ENTRY;
#ifdef CONFIG_SYSCTL
spl_header = register_sysctl_table(spl_dir, 0);
spl_header = spl_register_sysctl_table(spl_root, 0);
if (spl_header == NULL)
RETURN(-EUNATCH);
#if defined(DEBUG_MUTEX) || defined(DEBUG_KMEM) || defined(DEBUG_KSTAT)
proc_sys = proc_dir_entry_find(&proc_root, "sys");
if (proc_sys == NULL)
GOTO(out, rc = -EUNATCH);
@ -829,6 +886,7 @@ proc_init(void)
proc_sys_spl = proc_dir_entry_find(proc_sys, "spl");
if (proc_sys_spl == NULL)
GOTO(out, rc = -EUNATCH);
#endif
#ifdef DEBUG_MUTEX
proc_sys_spl_mutex = proc_dir_entry_find(proc_sys_spl, "mutex");
@ -862,8 +920,10 @@ out2:
#ifdef DEBUG_MUTEX
remove_proc_entry("stats_per", proc_sys_spl_mutex);
#endif /* DEBUG_MUTEX */
#if defined(DEBUG_MUTEX) || defined(DEBUG_KMEM) || defined(DEBUG_KSTAT)
out:
unregister_sysctl_table(spl_header);
#endif
spl_unregister_sysctl_table(spl_header);
#endif /* CONFIG_SYSCTL */
RETURN(rc);
}
@ -878,7 +938,7 @@ proc_fini(void)
#ifdef DEBUG_MUTEX
remove_proc_entry("stats_per", proc_sys_spl_mutex);
#endif /* DEBUG_MUTEX */
unregister_sysctl_table(spl_header);
spl_unregister_sysctl_table(spl_header);
#endif
EXIT;
}

1
modules/spl/spl-time.c
View File

@ -26,7 +26,6 @@
#include <sys/sysmacros.h>
#include <sys/time.h>
#include "config.h"
#ifdef DEBUG_SUBSYSTEM
#undef DEBUG_SUBSYSTEM

40
modules/spl/spl-vnode.c
View File

@ -26,7 +26,6 @@
#include <sys/sysmacros.h>
#include <sys/vnode.h>
#include "config.h"
#ifdef DEBUG_SUBSYSTEM
@ -105,7 +104,7 @@ vn_open(const char *path, uio_seg_t seg, int flags, int mode,
{
struct file *fp;
struct kstat stat;
int rc, saved_umask;
int rc, saved_umask = 0;
vnode_t *vp;
ENTRY;
@ -243,11 +242,17 @@ vn_close(vnode_t *vp, int flags, int x1, int x2, void *x3, void *x4)
} /* vn_close() */
EXPORT_SYMBOL(vn_close);
static struct dentry *lookup_hash(struct nameidata *nd)
static struct dentry *vn_lookup_hash(struct nameidata *nd)
{
return __lookup_hash(&nd->last, nd->dentry, nd);
return lookup_one_len(nd->last.name, nd->nd_dentry, nd->last.len);
} /* lookup_hash() */
static void vn_path_release(struct nameidata *nd)
{
dput(nd->nd_dentry);
mntput(nd->nd_mnt);
}
/* Modified do_unlinkat() from linux/fs/namei.c, only uses exported symbols */
int
vn_remove(const char *path, uio_seg_t seg, int flags)
@ -269,8 +274,8 @@ vn_remove(const char *path, uio_seg_t seg, int flags)
if (nd.last_type != LAST_NORM)
GOTO(exit1, rc);
mutex_lock_nested(&nd.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
dentry = lookup_hash(&nd);
mutex_lock_nested(&nd.nd_dentry->d_inode->i_mutex, I_MUTEX_PARENT);
dentry = vn_lookup_hash(&nd);
rc = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
/* Why not before? Because we want correct rc value */
@ -280,15 +285,15 @@ vn_remove(const char *path, uio_seg_t seg, int flags)
inode = dentry->d_inode;
if (inode)
atomic_inc(&inode->i_count);
rc = vfs_unlink(nd.dentry->d_inode, dentry);
rc = vfs_unlink(nd.nd_dentry->d_inode, dentry);
exit2:
dput(dentry);
}
mutex_unlock(&nd.dentry->d_inode->i_mutex);
mutex_unlock(&nd.nd_dentry->d_inode->i_mutex);
if (inode)
iput(inode); /* truncate the inode here */
exit1:
path_release(&nd);
vn_path_release(&nd);
exit:
RETURN(-rc);
@ -319,21 +324,21 @@ vn_rename(const char *oldname, const char *newname, int x1)
GOTO(exit1, rc);
rc = -EXDEV;
if (oldnd.mnt != newnd.mnt)
if (oldnd.nd_mnt != newnd.nd_mnt)
GOTO(exit2, rc);
old_dir = oldnd.dentry;
old_dir = oldnd.nd_dentry;
rc = -EBUSY;
if (oldnd.last_type != LAST_NORM)
GOTO(exit2, rc);
new_dir = newnd.dentry;
new_dir = newnd.nd_dentry;
if (newnd.last_type != LAST_NORM)
GOTO(exit2, rc);
trap = lock_rename(new_dir, old_dir);
old_dentry = lookup_hash(&oldnd);
old_dentry = vn_lookup_hash(&oldnd);
rc = PTR_ERR(old_dentry);
if (IS_ERR(old_dentry))
@ -358,7 +363,7 @@ vn_rename(const char *oldname, const char *newname, int x1)
if (old_dentry == trap)
GOTO(exit4, rc);
new_dentry = lookup_hash(&newnd);
new_dentry = vn_lookup_hash(&newnd);
rc = PTR_ERR(new_dentry);
if (IS_ERR(new_dentry))
GOTO(exit4, rc);
@ -377,9 +382,9 @@ exit4:
exit3:
unlock_rename(new_dir, old_dir);
exit2:
path_release(&newnd);
vn_path_release(&newnd);
exit1:
path_release(&oldnd);
vn_path_release(&oldnd);
exit:
RETURN(-rc);
}
@ -610,7 +615,8 @@ int
vn_init(void)
{
ENTRY;
vn_cache = kmem_cache_create("spl_vn_cache", sizeof(struct vnode), 64,
vn_cache = kmem_cache_create("spl_vn_cache",
sizeof(struct vnode), 64,
vn_cache_constructor,
vn_cache_destructor,
NULL, NULL, NULL, 0);

3
modules/splat/Makefile.in
View File

@ -6,8 +6,7 @@ DISTFILES = Makefile.in \
splat-time.c splat-condvar.c splat-mutex.c \
splat-rwlock.c splat-thread.c \
splat-ctl.c splat-internal.h
CPPFLAGS += @KERNELCPPFLAGS@
EXTRA_CFLAGS = @KERNELCPPFLAGS@
# Solaris Porting LAyer Tests
obj-m := splat.o

1
modules/splat/splat-ctl.c
View File

@ -41,7 +41,6 @@
*/
#include "splat-internal.h"
#include <config.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)
#include <linux/devfs_fs_kernel.h>

16
modules/splat/splat-mutex.c
View File

@ -59,7 +59,7 @@ typedef struct mutex_priv {
int mp_rc;
} mutex_priv_t;
#ifdef HAVE_3ARGS_INIT_WORK
static void
splat_mutex_test1_work(void *priv)
{
@ -71,14 +71,16 @@ splat_mutex_test1_work(void *priv)
if (!mutex_tryenter(&mp->mp_mtx))
mp->mp_rc = -EBUSY;
}
#endif
static int
splat_mutex_test1(struct file *file, void *arg)
{
int rc = 0;
#ifdef HAVE_3ARGS_INIT_WORK
struct workqueue_struct *wq;
struct work_struct work;
mutex_priv_t *mp;
int rc = 0;
mp = (mutex_priv_t *)kmalloc(sizeof(*mp), GFP_KERNEL);
if (mp == NULL)
@ -141,10 +143,11 @@ out:
destroy_workqueue(wq);
out2:
kfree(mp);
#endif
return rc;
}
#ifdef HAVE_3ARGS_INIT_WORK
static void
splat_mutex_test2_work(void *priv)
{
@ -162,13 +165,16 @@ splat_mutex_test2_work(void *priv)
mp->mp_rc = rc + 1;
mutex_exit(&mp->mp_mtx);
}
#endif
static int
splat_mutex_test2(struct file *file, void *arg)
{
int rc = 0;
#ifdef HAVE_3ARGS_INIT_WORK
struct workqueue_struct *wq;
mutex_priv_t *mp;
int i, rc = 0;
int i;
mp = (mutex_priv_t *)kmalloc(sizeof(*mp), GFP_KERNEL);
if (mp == NULL)
@ -220,7 +226,7 @@ splat_mutex_test2(struct file *file, void *arg)
destroy_workqueue(wq);
out:
kfree(mp);
#endif
return rc;
}