lockd: clean up __nsm_find()
Use list_for_each_entry(). Also, in keeping with kernel style, make the
normal case (kzalloc succeeds) unindented and handle the abnormal case
with a goto.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 960911c..de0ffb6 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -465,7 +465,7 @@
int create)
{
struct nsm_handle *nsm = NULL;
- struct list_head *pos;
+ struct nsm_handle *pos;
if (!sin)
return NULL;
@@ -480,16 +480,16 @@
}
mutex_lock(&nsm_mutex);
- list_for_each(pos, &nsm_handles) {
- nsm = list_entry(pos, struct nsm_handle, sm_link);
+ list_for_each_entry(pos, &nsm_handles, sm_link) {
if (hostname && nsm_use_hostnames) {
- if (strlen(nsm->sm_name) != hostname_len
- || memcmp(nsm->sm_name, hostname, hostname_len))
+ if (strlen(pos->sm_name) != hostname_len
+ || memcmp(pos->sm_name, hostname, hostname_len))
continue;
- } else if (!nlm_cmp_addr(&nsm->sm_addr, sin))
+ } else if (!nlm_cmp_addr(&pos->sm_addr, sin))
continue;
- atomic_inc(&nsm->sm_count);
+ atomic_inc(&pos->sm_count);
+ nsm = pos;
goto out;
}
@@ -499,15 +499,15 @@
}
nsm = kzalloc(sizeof(*nsm) + hostname_len + 1, GFP_KERNEL);
- if (nsm != NULL) {
- nsm->sm_addr = *sin;
- nsm->sm_name = (char *) (nsm + 1);
- memcpy(nsm->sm_name, hostname, hostname_len);
- nsm->sm_name[hostname_len] = '\0';
- atomic_set(&nsm->sm_count, 1);
+ if (nsm == NULL)
+ goto out;
+ nsm->sm_addr = *sin;
+ nsm->sm_name = (char *) (nsm + 1);
+ memcpy(nsm->sm_name, hostname, hostname_len);
+ nsm->sm_name[hostname_len] = '\0';
+ atomic_set(&nsm->sm_count, 1);
- list_add(&nsm->sm_link, &nsm_handles);
- }
+ list_add(&nsm->sm_link, &nsm_handles);
out:
mutex_unlock(&nsm_mutex);