Commit dbb21c25 authored Apr 01, 2013 by Trond Myklebust

NFSv4: Handle NFS4ERR_DELAY and NFS4ERR_GRACE in nfs4_lock_delegation_recall



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>
Cc: stable@vger.kernel.org

parent cb607187

fs/nfs/nfs4proc.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -5176,6 +5176,12 @@ 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); */