On Fri, 31 Jan 2014 15:41:58 -0500
Oleg Drokin <green@xxxxxxxxxxxxxx> wrote:
> 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.
>
> Signed-off-by: Oleg Drokin: <green@xxxxxxxxxxxxxx>
> ---
> fs/namei.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/fs/namei.c b/fs/namei.c
> index bcb838e..e620937 100644
> --- a/fs/namei.c
> +++ b/fs/namei.c
> @@ -3931,6 +3931,7 @@ out_dput:
> goto retry;
> }
> if (retry_estale(error, how)) {
> + path_put(&old_path);
> how |= LOOKUP_REVAL;
> goto retry;
> }
Nice catch. This should probably also go to stable as well...
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
