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authorChuck Lever <chuck.lever@oracle.com>2008-12-04 14:21:31 -0500
committerJ. Bruce Fields <bfields@citi.umich.edu>2009-01-06 11:53:52 -0500
commitc8c23c423dec49cb439697d3dc714e1500ff1610 (patch)
tree161035f51e31cce6d9f8dc104bad62a329496a77 /fs/lockd/mon.c
parent1e49323c4ab044d05bbc68cf13cadcbd4372468c (diff)
NSM: Release nsmhandle in nlm_destroy_host
The nsm_handle's reference count is bumped in nlm_lookup_host(). It should be decremented in nlm_destroy_host() to make it easier to see the balance of these two operations. Move the nsm_release() call to fs/lockd/host.c. The h_nsmhandle pointer is set in nlm_lookup_host(), and never cleared. The nlm_destroy_host() function is never called for the same nlm_host twice, so h_nsmhandle won't ever be NULL when nsm_unmonitor() is called. All references to the nlm_host are gone before it is freed. We can skip making h_nsmhandle NULL just before the nlm_host is deallocated. It's also likely we can remove the h_nsmhandle NULL check in nlmsvc_is_client() as well, but we can do that later when rearchitect- ing the nlm_host cache. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/lockd/mon.c')
-rw-r--r--fs/lockd/mon.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index aaaa08e7ae7a..15fab22db028 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -117,10 +117,6 @@ nsm_unmonitor(struct nlm_host *host)
struct nsm_res res;
int status = 0;
- if (nsm == NULL)
- return 0;
- host->h_nsmhandle = NULL;
-
if (atomic_read(&nsm->sm_count) == 1
&& nsm->sm_monitored && !nsm->sm_sticky) {
dprintk("lockd: nsm_unmonitor(%s)\n", nsm->sm_name);
@@ -132,7 +128,6 @@ nsm_unmonitor(struct nlm_host *host)
else
nsm->sm_monitored = 0;
}
- nsm_release(nsm);
return status;
}