From: Oleg Drokin <green@xxxxxxxxxxxxxx>
This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.
===============
commit d22e6338db7f613dd4f6095c190682fcc519e4b7 upstream.
Recent changes to retry on ESTALE in linkat
(commit 442e31ca5a49e398351b2954b51f578353fdf210)
introduced a mountpoint reference leak and a small memory
leak in case a filesystem link operation returns ESTALE
which is pretty normal for distributed filesystems like
lustre, nfs and so on.
Free old_path in such a case.
[AV: there was another missing path_put() nearby - on the previous
goto retry]
[js: the second path_put is not in 3.12 yet, hunk removed]
Signed-off-by: Oleg Drokin: <green@xxxxxxxxxxxxxx>
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
fs/namei.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/namei.c b/fs/namei.c
index 23ac50f4ee40..187cacf1c83c 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3924,6 +3924,7 @@ retry:
out_dput:
done_path_create(&new_path, new_dentry);
if (retry_estale(error, how)) {
+ path_put(&old_path);
how |= LOOKUP_REVAL;
goto retry;
}
--
1.9.0
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