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authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-04-01 15:34:05 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-07 19:51:56 -0700
commited9a34c5fc970e8371eb3a599db6ffc89bd56d9e (patch)
tree9637ca9f2fc8d8defa2d3634774e10daa8e549bf
parent6cd670f0ff34d314b88b8b7cc1c1b45617f08a78 (diff)
NFSv4: Handle NFS4ERR_DELAY and NFS4ERR_GRACE in nfs4_open_delegation_recall
commit 8b6cc4d6f841d31f72fe7478453759166d366274 upstream. A server shouldn't normally return NFS4ERR_GRACE if the client holds a delegation, since no conflicting lock reclaims can be granted, however the spec does not require the server to grant the open in this instance Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/nfs/nfs4proc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 30351877aee..04f449cd2c6 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1362,6 +1362,12 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
case -ENOMEM:
err = 0;
goto out;
+ case -NFS4ERR_DELAY:
+ case -NFS4ERR_GRACE:
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
+ ssleep(1);
+ err = -EAGAIN;
+ goto out;
}
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);