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NFS/pNFS: Fix a leak of the layout 'plh_outstanding' counter 

commit cb2856c597 upstream.

If we exit _lgopen_prepare_attached() without setting a layout, we will
currently leak the plh_outstanding counter.

Fixes: 411ae722d1 ("pNFS: Wait for stale layoutget calls to complete in pnfs_update_layout()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Trond Myklebust 2021-01-06 14:13:22 -05:00 committed by Greg Kroah-Hartman
parent aa2399f55e
commit 6b3ae2030d
1 changed files with 1 additions and 0 deletions
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fs/nfs/pnfs.c
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@ -2215,6 +2215,7 @@ static void _lgopen_prepare_attached(struct nfs4_opendata *data,
&rng, GFP_KERNEL);
if (!lgp) {
pnfs_clear_first_layoutget(lo);
nfs_layoutget_end(lo);
pnfs_put_layout_hdr(lo);
return;
}