2006-08-05 13:06:54

by Olaf Kirch

[permalink] [raw]
Subject: [PATCH 13/22] lockd: Add nlm_destroy_host

From: Olaf Kirch <[email protected]>
Subject: lockd: Add nlm_destroy_host

This patch moves the host destruction code out of nlm_host_gc
into a function of its own.

Signed-off-by: Olaf Kirch <[email protected]>

fs/lockd/host.c | 45 +++++++++++++++++++++++++++++----------------
1 files changed, 29 insertions(+), 16 deletions(-)

Index: build/fs/lockd/host.c
===================================================================
--- build.orig/fs/lockd/host.c
+++ build/fs/lockd/host.c
@@ -164,6 +164,34 @@ out:
return host;
}

+/*
+ * Destroy a host
+ */
+static void
+nlm_destroy_host(struct nlm_host *host)
+{
+ struct rpc_clnt *clnt;
+
+ BUG_ON(!list_empty(&host->h_lockowners));
+ BUG_ON(atomic_read(&host->h_count));
+
+ /*
+ * Release NSM handle and unmonitor host.
+ */
+ nsm_unmonitor(host);
+
+ if ((clnt = host->h_rpcclnt) != NULL) {
+ if (atomic_read(&clnt->cl_users)) {
+ printk(KERN_WARNING
+ "lockd: active RPC handle\n");
+ clnt->cl_dead = 1;
+ } else {
+ rpc_destroy_client(host->h_rpcclnt);
+ }
+ }
+ kfree(host);
+}
+
struct nlm_host *
nlm_find_client(void)
{
@@ -396,7 +424,6 @@ nlm_gc_hosts(void)
struct hlist_head *chain;
struct hlist_node *pos, *next;
struct nlm_host *host;
- struct rpc_clnt *clnt;

dprintk("lockd: host garbage collection\n");
for (chain = nlm_hosts; chain < nlm_hosts + NLM_HOST_NRHASH; ++chain) {
@@ -419,21 +446,7 @@ nlm_gc_hosts(void)
dprintk("lockd: delete host %s\n", host->h_name);
hlist_del_init(&host->h_hash);

- /*
- * Unmonitor unless host was invalidated (i.e. lockd restarted)
- */
- nsm_unmonitor(host);
-
- if ((clnt = host->h_rpcclnt) != NULL) {
- if (atomic_read(&clnt->cl_users)) {
- printk(KERN_WARNING
- "lockd: active RPC handle\n");
- clnt->cl_dead = 1;
- } else {
- rpc_destroy_client(host->h_rpcclnt);
- }
- }
- kfree(host);
+ nlm_destroy_host(host);
nrhosts--;
}
}

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