Commit 63d63cbf authored Sep 22, 2016 by Trond Myklebust Committed by Anna Schumaker Sep 27, 2016

NFSv4.1: Don't recheck delegations that have already been checked



Ensure we don't spam the server with test_stateid() calls for
delegations that have already been checked.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Tested-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

parent bb3d1a3b

fs/nfs/nfs4proc.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -2459,6 +2459,11 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state)
		return;
		}

		if (!test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags)) {
		rcu_read_unlock();
		return;
		}

		cred = get_rpccred(delegation->cred);
		rcu_read_unlock();
		status = nfs41_test_and_free_expired_stateid(server, &stateid, cred);