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| author | Chuck Lever <chuck.lever@oracle.com> | 2010-12-14 15:05:33 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-12-16 12:37:26 -0500 |
| commit | 723bb5b5052faba57060a2feb564ced22416b5bc (patch) | |
| tree | e70324287a277846d32ddc3a6724251e1fc27724 | |
| parent | a7952f4056d4d9c63c70534bcfd4f2c11e487000 (diff) | |
| download | linux-stable-723bb5b5052faba57060a2feb564ced22416b5bc.tar.gz linux-stable-723bb5b5052faba57060a2feb564ced22416b5bc.tar.bz2 linux-stable-723bb5b5052faba57060a2feb564ced22416b5bc.zip | |
lockd: Add nlm_destroy_host_locked()
Refactor the tail of nlm_gc_hosts() into nlm_destroy_host() so that
this logic can be used separately from garbage collection.
Rename it _locked() to document that it must be called with the hosts
cache mutex held.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/lockd/host.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/fs/lockd/host.c b/fs/lockd/host.c index 1911f34be976..e58e1426d161 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -231,16 +231,21 @@ out: } /* - * Destroy a host + * Destroy an nlm_host and free associated resources + * + * Caller must hold nlm_host_mutex. */ -static void -nlm_destroy_host(struct nlm_host *host) +static void nlm_destroy_host_locked(struct nlm_host *host) { struct rpc_clnt *clnt; + dprintk("lockd: destroy host %s\n", host->h_name); + BUG_ON(!list_empty(&host->h_lockowners)); BUG_ON(atomic_read(&host->h_count)); + hlist_del_init(&host->h_hash); + nsm_unmonitor(host); nsm_release(host->h_nsmhandle); @@ -248,6 +253,8 @@ nlm_destroy_host(struct nlm_host *host) if (clnt != NULL) rpc_shutdown_client(clnt); kfree(host); + + nrhosts--; } /** @@ -589,11 +596,7 @@ nlm_gc_hosts(void) host->h_inuse, host->h_expires); continue; } - dprintk("lockd: delete host %s\n", host->h_name); - hlist_del_init(&host->h_hash); - - nlm_destroy_host(host); - nrhosts--; + nlm_destroy_host_locked(host); } next_gc = jiffies + NLM_HOST_COLLECT; |