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Code Issues Releases Activity

config: remove HAVE_CLEAR_INODE and HAVE_EVICT_INODE

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 2024-08-03 12:55:00 +10:00 committed by Brian Behlendorf
parent 609559e5b9
commit 147c82bd5e
4 changed files with 0 additions and 77 deletions
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39
config/kernel-clear-inode.m4
View File

@ -1,39 +0,0 @@
dnl #
dnl # 3.5.0 API change
dnl # torvalds/linux@dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430 and
dnl # torvalds/linux@7994e6f7254354e03028a11f98a27bd67dace9f1 reworked
dnl # where inode_sync_wait() is called.
dnl #
dnl # Prior to these changes it would occur in end_writeback() but due
dnl # to various issues (described in the above commits) it has been
dnl # moved to evict(). This changes the ordering is which sync occurs
dnl # but otherwise doesn't impact the zpl implementation.
dnl #
dnl # The major impact here is the renaming of end_writeback() to
dnl # clear_inode(). However, care must be taken when detecting this
dnl # API change because as recently as 2.6.35 there was a clear_inode()
dnl # function. However, it was made obsolete by the evict_inode() API
dnl # change at the same time.
dnl #
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_SRC_CLEAR_INODE], [
ZFS_LINUX_TEST_SRC([clear_inode], [
#include <linux/fs.h>
], [
clear_inode(NULL);
])
])
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])
], [
AC_MSG_RESULT(no)
])
])

24
config/kernel-evict-inode.m4
View File

@ -1,24 +0,0 @@
dnl #
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_SRC_EVICT_INODE], [
ZFS_LINUX_TEST_SRC([evict_inode], [
#include <linux/fs.h>
static 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])
],[
ZFS_LINUX_TEST_ERROR([evict_inode])
])
])

4
config/kernel.m4
View File

@ -80,7 +80,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_FILEMAP
ZFS_AC_KERNEL_SRC_FSYNC
ZFS_AC_KERNEL_SRC_AIO_FSYNC
ZFS_AC_KERNEL_SRC_EVICT_INODE
ZFS_AC_KERNEL_SRC_DIRTY_INODE
ZFS_AC_KERNEL_SRC_SHRINKER
ZFS_AC_KERNEL_SRC_MKDIR
@ -93,7 +92,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_AUTOMOUNT
ZFS_AC_KERNEL_SRC_ENCODE_FH_WITH_INODE
ZFS_AC_KERNEL_SRC_COMMIT_METADATA
ZFS_AC_KERNEL_SRC_CLEAR_INODE
ZFS_AC_KERNEL_SRC_SETATTR_PREPARE
ZFS_AC_KERNEL_SRC_INSERT_INODE_LOCKED
ZFS_AC_KERNEL_SRC_DENTRY
@ -234,7 +232,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_FILEMAP
ZFS_AC_KERNEL_FSYNC
ZFS_AC_KERNEL_AIO_FSYNC
ZFS_AC_KERNEL_EVICT_INODE
ZFS_AC_KERNEL_DIRTY_INODE
ZFS_AC_KERNEL_SHRINKER
ZFS_AC_KERNEL_MKDIR
@ -247,7 +244,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_AUTOMOUNT
ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE
ZFS_AC_KERNEL_COMMIT_METADATA
ZFS_AC_KERNEL_CLEAR_INODE
ZFS_AC_KERNEL_SETATTR_PREPARE
ZFS_AC_KERNEL_INSERT_INODE_LOCKED
ZFS_AC_KERNEL_DENTRY

10
include/os/linux/kernel/linux/vfs_compat.h
View File

@ -136,16 +136,6 @@ zpl_bdi_destroy(struct super_block *sb)
#define SB_NOATIME MS_NOATIME
#endif
/*
* 3.5 API change,
* The clear_inode() function replaces end_writeback() and introduces an
* ordering change regarding when the inode_sync_wait() occurs. See the
* configure check in config/kernel-clear-inode.m4 for full details.
*/
#if defined(HAVE_EVICT_INODE) && !defined(HAVE_CLEAR_INODE)
#define clear_inode(ip) end_writeback(ip)
#endif /* HAVE_EVICT_INODE && !HAVE_CLEAR_INODE */
#if defined(SEEK_HOLE) && defined(SEEK_DATA) && !defined(HAVE_LSEEK_EXECUTE)
static inline loff_t
lseek_execute(