Patch "fuse: revalidate: don't invalidate if interrupted" has been added to the 5.10-stable tree

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This is a note to let you know that I've just added the patch titled

    fuse: revalidate: don't invalidate if interrupted

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:
     fuse-revalidate-don-t-invalidate-if-interrupted.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 a9d1c4c6df0e568207907c04aed9e7beb1294c42 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Date: Wed, 7 Jun 2023 17:49:20 +0200
Subject: fuse: revalidate: don't invalidate if interrupted

From: Miklos Szeredi <mszeredi@xxxxxxxxxx>

commit a9d1c4c6df0e568207907c04aed9e7beb1294c42 upstream.

If the LOOKUP request triggered from fuse_dentry_revalidate() is
interrupted, then the dentry will be invalidated, possibly resulting in
submounts being unmounted.

Reported-by: Xu Rongbo <xurongbo@xxxxxxxxx>
Closes: https://lore.kernel.org/all/CAJfpegswN_CJJ6C3RZiaK6rpFmNyWmXfaEpnQUJ42KCwNF5tWw@xxxxxxxxxxxxxx/
Fixes: 9e6268db496a ("[PATCH] FUSE - read-write operations")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Miklos Szeredi <mszeredi@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
@@ -249,7 +249,7 @@ static int fuse_dentry_revalidate(struct
 			spin_unlock(&fi->lock);
 		}
 		kfree(forget);
-		if (ret == -ENOMEM)
+		if (ret == -ENOMEM || ret == -EINTR)
 			goto out;
 		if (ret || fuse_invalid_attr(&outarg.attr) ||
 		    fuse_stale_inode(inode, outarg.generation, &outarg.attr))


Patches currently in stable-queue which might be from mszeredi@xxxxxxxxxx are

queue-5.10/ovl-update-of-dentry-revalidate-flags-after-copy-up.patch
queue-5.10/fuse-revalidate-don-t-invalidate-if-interrupted.patch



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