[PATCH 1/1] NFSv4: handle ERR_GRACE on delegation recalls

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RFC7530 states that clients should be prepared for the return of
NFS4ERR_GRACE errors for non-reclaim lock and I/O requests.

Signed-off-by: Olga Kornievskaia <okorniev@xxxxxxxxxx>
---
 fs/nfs/nfs4proc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 341740fa293d..fa9b81300604 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7867,10 +7867,10 @@ int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state,
 		return err;
 	do {
 		err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
-		if (err != -NFS4ERR_DELAY)
+		if (err != -NFS4ERR_DELAY && err != -NFS4ERR_GRACE)
 			break;
 		ssleep(1);
-	} while (err == -NFS4ERR_DELAY);
+	} while (err == -NFS4ERR_DELAY || err == -NFSERR_GRACE);
 	return nfs4_handle_delegation_recall_error(server, state, stateid, fl, err);
 }
 
-- 
2.47.1





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