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authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-04-01 14:27:29 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-07 20:33:13 -0700
commit82f09f787aeeead60060b2b47f81c5d38eb4d9a4 (patch)
tree105a56996f1638e3c42eae9454a1dd34365bdd0c
parent4e8ff5541c9a5521f0052e7a68988c3a190af69a (diff)
NFSv4: Handle NFS4ERR_DELAY and NFS4ERR_GRACE in nfs4_lock_delegation_recall
commit dbb21c25a35a71baf413f5176f028ee11b88cfbc 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 lock 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 0ad025eb523..70d604680bc 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5025,6 +5025,12 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
nfs4_schedule_stateid_recovery(server, state);
err = 0;
goto out;
+ case -NFS4ERR_DELAY:
+ case -NFS4ERR_GRACE:
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
+ ssleep(1);
+ err = -EAGAIN;
+ goto out;
case -ENOMEM:
case -NFS4ERR_DENIED:
/* kill_proc(fl->fl_pid, SIGLOST, 1); */