366 lines
9.6 KiB
Plaintext
366 lines
9.6 KiB
Plaintext
dnl #
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dnl # 2.6.35 API change,
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dnl # The 'struct xattr_handler' was constified in the generic
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dnl # super_block structure.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_CONST_XATTR_HANDLER], [
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AC_MSG_CHECKING([whether super_block uses const struct xattr_handler])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/fs.h>
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#include <linux/xattr.h>
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const struct xattr_handler xattr_test_handler = {
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.prefix = "test",
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.get = NULL,
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.set = NULL,
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};
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const struct xattr_handler *xattr_handlers[] = {
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&xattr_test_handler,
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};
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const struct super_block sb __attribute__ ((unused)) = {
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.s_xattr = xattr_handlers,
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};
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],[
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_CONST_XATTR_HANDLER, 1,
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[super_block uses const struct xattr_handler])
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],[
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AC_MSG_RESULT([no])
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])
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])
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dnl #
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dnl # 4.5 API change,
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dnl # struct xattr_handler added new member "name".
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dnl # xattr_handler which matches to whole name rather than prefix should use
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dnl # "name" instead of "prefix", e.g. "system.posix_acl_access"
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_NAME], [
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AC_MSG_CHECKING([whether xattr_handler has name])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.name = XATTR_NAME_POSIX_ACL_ACCESS,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_HANDLER_NAME, 1,
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[xattr_handler has name])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # Supported xattr handler get() interfaces checked newest to oldest.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_GET], [
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dnl #
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dnl # 4.7 API change,
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dnl # The xattr_handler->get() callback was changed to take both
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dnl # dentry and inode.
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dnl #
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AC_MSG_CHECKING([whether xattr_handler->get() wants both dentry and inode])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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int get(const struct xattr_handler *handler,
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struct dentry *dentry, struct inode *inode,
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const char *name, void *buffer, size_t size) { return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.get = get,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_GET_DENTRY_INODE, 1,
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[xattr_handler->get() wants xattr_handler])
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],[
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dnl #
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dnl # 4.4 API change,
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dnl # The xattr_handler->get() callback was changed to take a
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dnl # attr_handler, and handler_flags argument was removed and
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dnl # should be accessed by handler->flags.
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dnl #
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AC_MSG_CHECKING([whether xattr_handler->get() wants xattr_handler])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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int get(const struct xattr_handler *handler,
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struct dentry *dentry, const char *name,
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void *buffer, size_t size) { return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.get = get,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_GET_HANDLER, 1,
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[xattr_handler->get() wants xattr_handler])
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],[
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dnl #
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dnl # 2.6.33 API change,
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dnl # The xattr_handler->get() callback was changed to take
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dnl # a dentry instead of an inode, and a handler_flags
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dnl # argument was added.
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dnl #
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether xattr_handler->get() wants dentry])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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int get(struct dentry *dentry, const char *name,
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void *buffer, size_t size, int handler_flags)
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{ return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.get = get,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_GET_DENTRY, 1,
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[xattr_handler->get() wants dentry])
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],[
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dnl #
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dnl # 2.6.32 API
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dnl #
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(
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[whether xattr_handler->get() wants inode])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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int get(struct inode *ip, const char *name,
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void *buffer, size_t size) { return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.get = get,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_GET_INODE, 1,
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[xattr_handler->get() wants inode])
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],[
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AC_MSG_ERROR([no; please file a bug report])
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])
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])
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])
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])
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])
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dnl #
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dnl # Supported xattr handler set() interfaces checked newest to oldest.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_SET], [
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dnl #
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dnl # 4.4 API change,
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dnl # The xattr_handler->set() callback was changed to take a
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dnl # xattr_handler, and handler_flags argument was removed and
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dnl # should be accessed by handler->flags.
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dnl #
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AC_MSG_CHECKING([whether xattr_handler->set() wants xattr_handler])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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int set(const struct xattr_handler *handler,
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struct dentry *dentry, const char *name,
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const void *buffer, size_t size, int flags)
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{ return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.set = set,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_SET_HANDLER, 1,
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[xattr_handler->set() wants xattr_handler])
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],[
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dnl #
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dnl # 2.6.33 API change,
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dnl # The xattr_handler->set() callback was changed to take a
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dnl # dentry instead of an inode, and a handler_flags
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dnl # argument was added.
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dnl #
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether xattr_handler->set() wants dentry])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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int set(struct dentry *dentry, const char *name,
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const void *buffer, size_t size, int flags,
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int handler_flags) { return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.set = set,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_SET_DENTRY, 1,
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[xattr_handler->set() wants dentry])
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],[
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dnl #
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dnl # 2.6.32 API
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dnl #
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(
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[whether xattr_handler->set() wants inode])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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int set(struct inode *ip, const char *name,
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const void *buffer, size_t size, int flags)
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{ return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.set = set,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_SET_INODE, 1,
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[xattr_handler->set() wants inode])
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],[
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AC_MSG_ERROR([no; please file a bug report])
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])
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])
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])
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])
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dnl #
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dnl # Supported xattr handler list() interfaces checked newest to oldest.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_LIST], [
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dnl # 4.5 API change,
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dnl # The xattr_handler->list() callback was changed to take only a
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dnl # dentry and it only needs to return if it's accessable.
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AC_MSG_CHECKING([whether xattr_handler->list() wants simple])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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bool list(struct dentry *dentry) { return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.list = list,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_LIST_SIMPLE, 1,
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[xattr_handler->list() wants simple])
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],[
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dnl #
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dnl # 4.4 API change,
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dnl # The xattr_handler->list() callback was changed to take a
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dnl # xattr_handler, and handler_flags argument was removed
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dnl # and should be accessed by handler->flags.
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dnl #
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(
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[whether xattr_handler->list() wants xattr_handler])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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size_t list(const struct xattr_handler *handler,
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struct dentry *dentry, char *list, size_t list_size,
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const char *name, size_t name_len) { return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.list = list,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_LIST_HANDLER, 1,
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[xattr_handler->list() wants xattr_handler])
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],[
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dnl #
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dnl # 2.6.33 API change,
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dnl # The xattr_handler->list() callback was changed
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dnl # to take a dentry instead of an inode, and a
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dnl # handler_flags argument was added.
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dnl #
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(
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[whether xattr_handler->list() wants dentry])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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size_t list(struct dentry *dentry,
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char *list, size_t list_size,
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const char *name, size_t name_len,
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int handler_flags) { return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.list = list,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_LIST_DENTRY, 1,
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[xattr_handler->list() wants dentry])
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],[
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dnl #
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dnl # 2.6.32 API
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dnl #
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(
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[whether xattr_handler->list() wants inode])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/xattr.h>
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size_t list(struct inode *ip, char *lst,
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size_t list_size, const char *name,
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size_t name_len) { return 0; }
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static const struct xattr_handler
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xops __attribute__ ((unused)) = {
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.list = list,
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};
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_XATTR_LIST_INODE, 1,
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[xattr_handler->list() wants inode])
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],[
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AC_MSG_ERROR(
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[no; please file a bug report])
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])
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])
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])
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])
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])
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dnl #
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dnl # 3.7 API change,
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dnl # The posix_acl_{from,to}_xattr functions gained a new
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dnl # parameter: user_ns
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_FROM_XATTR_USERNS], [
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AC_MSG_CHECKING([whether posix_acl_from_xattr() needs user_ns])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/cred.h>
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#include <linux/fs.h>
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#include <linux/posix_acl_xattr.h>
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],[
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posix_acl_from_xattr(&init_user_ns, NULL, 0);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_POSIX_ACL_FROM_XATTR_USERNS, 1,
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[posix_acl_from_xattr() needs user_ns])
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],[
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AC_MSG_RESULT(no)
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])
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])
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