This is a note to let you know that I've just added the patch titled
fuse: always revalidate rename target dentry
to the 5.15-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:
fuse-always-revalidate-rename-target-dentry.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ccc031e26afe60d2a5a3d93dabd9c978210825fb Mon Sep 17 00:00:00 2001
From: Jiachen Zhang <zhangjiachen.jaycee@xxxxxxxxxxxxx>
Date: Wed, 28 Sep 2022 20:19:34 +0800
Subject: fuse: always revalidate rename target dentry
From: Jiachen Zhang <zhangjiachen.jaycee@xxxxxxxxxxxxx>
commit ccc031e26afe60d2a5a3d93dabd9c978210825fb upstream.
The previous commit df8629af2934 ("fuse: always revalidate if exclusive
create") ensures that the dentries are revalidated on O_EXCL creates. This
commit complements it by also performing revalidation for rename target
dentries. Otherwise, a rename target file that only exists in kernel
dentry cache but not in the filesystem will result in EEXIST if
RENAME_NOREPLACE flag is used.
Signed-off-by: Jiachen Zhang <zhangjiachen.jaycee@xxxxxxxxxxxxx>
Signed-off-by: Zhang Tianci <zhangtianci.1997@xxxxxxxxxxxxx>
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Signed-off-by: Yang Bo <yb203166@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/fuse/dir.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -205,7 +205,7 @@ static int fuse_dentry_revalidate(struct
if (inode && fuse_is_bad(inode))
goto invalid;
else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) ||
- (flags & (LOOKUP_EXCL | LOOKUP_REVAL))) {
+ (flags & (LOOKUP_EXCL | LOOKUP_REVAL | LOOKUP_RENAME_TARGET))) {
struct fuse_entry_out outarg;
FUSE_ARGS(args);
struct fuse_forget_link *forget;
Patches currently in stable-queue which might be from zhangjiachen.jaycee@xxxxxxxxxxxxx are
queue-5.15/fuse-always-revalidate-rename-target-dentry.patch
queue-5.15/fuse-fix-deadlock-between-atomic-o_trunc-and-page-invalidation.patch
