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fuse: revalidate: don't invalidate if interrupted

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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@baidu.com>
Closes: https://lore.kernel.org/all/CAJfpegswN_CJJ6C3RZiaK6rpFmNyWmXfaEpnQUJ42KCwNF5tWw@mail.gmail.com/
Fixes: 9e6268db49 ("[PATCH] FUSE - read-write operations")
Cc: <stable@vger.kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Miklos Szeredi 2023-06-07 17:49:20 +02:00
parent 3066ff9347
commit a9d1c4c6df
1 changed files with 1 additions and 1 deletions
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2
fs/fuse/dir.c
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@ -258,7 +258,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
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))