diff mbox

[v2,093/117] nfsd: don't destroy clients that are busy

Message ID 1403810485-16497-10-git-send-email-jlayton@primarydata.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jeff Layton June 26, 2014, 7:21 p.m. UTC 
It's possible that we'll have an in-progress call on some of the clients
while a rogue EXCHANGE_ID or DESTROY_CLIENTID call comes in. Be sure to
try and mark the client expired first, so that the refcount is
respected.

This will only be a problem once the client_mutex is removed.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
 fs/nfsd/nfs4state.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 014849dfaa4b..02cb3f4e27d5 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2214,8 +2214,11 @@  nfsd4_exchange_id(struct svc_rqst *rqstp,
 
 	/* case 1 (normal case) */
 out_new:
-	if (conf)
-		unhash_client_locked(conf);
+	if (conf) {
+		status = mark_client_expired_locked(conf);
+		if (status)
+			goto out;
+	}
 	new->cl_minorversion = cstate->minorversion;
 	new->cl_mach_cred = (exid->spa_how == SP4_MACH_CRED);
 
@@ -2828,6 +2831,9 @@  nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *csta
 			status = nfserr_clientid_busy;
 			goto out;
 		}
+		status = mark_client_expired_locked(conf);
+		if (status)
+			goto out;
 		clp = conf;
 	} else if (unconf)
 		clp = unconf;