This is a note to let you know that I've just added the patch titled
fs: export an inode_update_time helper
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fs-export-an-inode_update_time-helper.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e60feb445fce9e51c1558a6aa7faf9dd5ded533b Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@xxxxxxxxxxxxxx>
Date: Thu, 14 Oct 2021 13:11:00 -0400
Subject: fs: export an inode_update_time helper
From: Josef Bacik <josef@xxxxxxxxxxxxxx>
commit e60feb445fce9e51c1558a6aa7faf9dd5ded533b upstream.
If you already have an inode and need to update the time on the inode
there is no way to do this properly. Export this helper to allow file
systems to update time on the inode so the appropriate handler is
called, either ->update_time or generic_update_time.
Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/inode.c | 7 ++++---
include/linux/fs.h | 2 ++
2 files changed, 6 insertions(+), 3 deletions(-)
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1772,12 +1772,13 @@ EXPORT_SYMBOL(generic_update_time);
* This does the actual work of updating an inodes time or version. Must have
* had called mnt_want_write() before calling this.
*/
-static int update_time(struct inode *inode, struct timespec64 *time, int flags)
+int inode_update_time(struct inode *inode, struct timespec64 *time, int flags)
{
if (inode->i_op->update_time)
return inode->i_op->update_time(inode, time, flags);
return generic_update_time(inode, time, flags);
}
+EXPORT_SYMBOL(inode_update_time);
/**
* touch_atime - update the access time
@@ -1847,7 +1848,7 @@ void touch_atime(const struct path *path
* of the fs read only, e.g. subvolumes in Btrfs.
*/
now = current_time(inode);
- update_time(inode, &now, S_ATIME);
+ inode_update_time(inode, &now, S_ATIME);
__mnt_drop_write(mnt);
skip_update:
sb_end_write(inode->i_sb);
@@ -1991,7 +1992,7 @@ int file_update_time(struct file *file)
if (__mnt_want_write_file(file))
return 0;
- ret = update_time(inode, &now, sync_it);
+ ret = inode_update_time(inode, &now, sync_it);
__mnt_drop_write_file(file);
return ret;
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2214,6 +2214,8 @@ enum file_time_flags {
extern bool atime_needs_update(const struct path *, struct inode *);
extern void touch_atime(const struct path *);
+int inode_update_time(struct inode *inode, struct timespec64 *time, int flags);
+
static inline void file_accessed(struct file *file)
{
if (!(file->f_flags & O_NOATIME))
Patches currently in stable-queue which might be from josef@xxxxxxxxxxxxxx are
queue-5.10/fs-export-an-inode_update_time-helper.patch
queue-5.10/btrfs-update-device-path-inode-time-instead-of-bd_inode.patch
queue-5.10/btrfs-fix-memory-ordering-between-normal-and-ordered-work-functions.patch
