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config: remove HAVE_KERNEL_GET_ACL_HANDLE_CACHE

Browse Source 
Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #16479
This commit is contained in:
Rob Norris 2024-08-16 17:00:43 +10:00 committed by Brian Behlendorf
parent d1a07741f8
commit a1832d1ecb
2 changed files with 0 additions and 45 deletions
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28
config/kernel-acl.m4
View File

@ -199,32 +199,6 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL], [
])
])
dnl #
dnl # 4.7 API change,
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_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);
])
])
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_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.
@ -255,7 +229,6 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_ACL], [
ZFS_AC_KERNEL_SRC_POSIX_ACL_VALID_WITH_NS
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
])
@ -264,6 +237,5 @@ AC_DEFUN([ZFS_AC_KERNEL_ACL], [
ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS
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
])

17
module/os/linux/zfs/zpl_xattr.c
View File

@ -1087,17 +1087,6 @@ zpl_get_acl_impl(struct inode *ip, int type)
void *value = NULL;
char *name;
/*
* As of Linux 3.14, the kernel get_acl will check this for us.
* Also as of Linux 4.7, comparing against ACL_NOT_CACHED is wrong
* as the kernel get_acl will set it to temporary sentinel value.
*/
#ifndef HAVE_KERNEL_GET_ACL_HANDLE_CACHE
acl = get_cached_acl(ip, type);
if (acl != ACL_NOT_CACHED)
return (acl);
#endif
switch (type) {
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
@ -1126,12 +1115,6 @@ zpl_get_acl_impl(struct inode *ip, int type)
if (size > 0)
kmem_free(value, size);
/* As of Linux 4.7, the kernel get_acl will set this for us */
#ifndef HAVE_KERNEL_GET_ACL_HANDLE_CACHE
if (!IS_ERR(acl))
set_cached_acl(ip, type, acl);
#endif
return (acl);
}