nfsd: make close_lru list per net

This list holds nfs4 clients (open) stateowner queue for last close replay,
which are network namespace aware. So let's make this list per network
namespace too.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 7 insertions, 13 deletions

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 9cf7e9bf3691..a8e406449ef6 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -402,14 +402,6 @@ static unsigned int clientstr_hashval(const char *name)
 }
 
 /*
- * close_lru holds (open) stateowner queue ordered by nfs4_stateowner.so_time
- * for last close replay.
- *
- * All of the above fields are protected by the client_mutex.
- */
-static struct list_head close_lru;
-
-/*
  * We store the NONE, READ, WRITE, and BOTH bits separately in the
  * st_{access,deny}_bmap field of the stateid, in order to track not
  * only what share bits are currently in force, but also what
@@ -2465,11 +2457,13 @@ static void init_open_stateid(struct nfs4_ol_stateid *stp, struct nfs4_file *fp,
 }
 
 static void
-move_to_close_lru(struct nfs4_openowner *oo)
+move_to_close_lru(struct nfs4_openowner *oo, struct net *net)
 {
+	struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+
 	dprintk("NFSD: move_to_close_lru nfs4_openowner %p\n", oo);
 
-	list_move_tail(&oo->oo_close_lru, &close_lru);
+	list_move_tail(&oo->oo_close_lru, &nn->close_lru);
 	oo->oo_time = get_seconds();
 }
 
@@ -3242,7 +3236,7 @@ nfs4_laundromat(void)
 		unhash_delegation(dp);
 	}
 	test_val = nfsd4_lease;
-	list_for_each_safe(pos, next, &close_lru) {
+	list_for_each_safe(pos, next, &nn->close_lru) {
 		oo = container_of(pos, struct nfs4_openowner, oo_close_lru);
 		if (time_after((unsigned long)oo->oo_time, (unsigned long)cutoff)) {
 			u = oo->oo_time - cutoff;
@@ -3820,7 +3814,7 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 			 * little while to handle CLOSE replay.
 			 */
 			if (list_empty(&oo->oo_owner.so_stateids))
-				move_to_close_lru(oo);
+				move_to_close_lru(oo, SVC_NET(rqstp));
 		}
 	}
 out:
@@ -4721,7 +4715,6 @@ nfs4_state_init(void)
 	for (i = 0; i < FILE_HASH_SIZE; i++) {
 		INIT_LIST_HEAD(&file_hashtbl[i]);
 	}
-	INIT_LIST_HEAD(&close_lru);
 	INIT_LIST_HEAD(&del_recall_lru);
 }
 
@@ -4785,6 +4778,7 @@ static int nfs4_state_start_net(struct net *net)
 	nn->conf_name_tree = RB_ROOT;
 	nn->unconf_name_tree = RB_ROOT;
 	INIT_LIST_HEAD(&nn->client_lru);
+	INIT_LIST_HEAD(&nn->close_lru);
 
 	return 0;