NFSv4.1 don't free interrupted slot on open

Allow the async rpc task for finish and update the open state if needed,
then free the slot. Otherwise, the async rpc unable to decode the reply.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Fixes: ae55e59da0e4 ("pnfs: Don't release the sequence slot...")
Cc: stable@vger.kernel.org # v4.18+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6d2812a3928799854970a8ddba9fee8de944eb2e..741ff8c9c6ed3f7cda214ec0157eb6d9461ebdca 100644 (file)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2933,7 +2933,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
        }
 
 out:
-       nfs4_sequence_free_slot(&opendata->o_res.seq_res);
+       if (!opendata->cancelled)
+               nfs4_sequence_free_slot(&opendata->o_res.seq_res);
        return ret;
 }