NLM: Remove "create" argument from nsm_find()

Clean up: nsm_find() now has only one caller, and that caller
unconditionally sets the @create argument. Thus the @create
argument is no longer needed.

Since nsm_find() now has a more specific purpose, pick a more
appropriate name for it.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

3 files changed, 14 insertions, 19 deletions

diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 230de93fc048..e5a65df4c0cd 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -159,8 +159,8 @@ static struct nlm_host *nlm_lookup_host(struct nlm_lookup_host_info *ni)
                 atomic_inc(&nsm->sm_count);
         else {
                 host = NULL;
-                nsm = nsm_find(ni->sap, ni->salen,
-                                ni->hostname, ni->hostname_len, 1);
+                nsm = nsm_get_handle(ni->sap, ni->salen,
+                                        ni->hostname, ni->hostname_len);
                 if (!nsm) {
                         dprintk("lockd: nlm_lookup_host failed; "
                                 "no nsm handle\n");
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index e46903995c99..740702216042 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -240,24 +240,22 @@ static void nsm_init_private(struct nsm_handle *nsm)
 }
 
 /**
- * nsm_find - Find or create a cached nsm_handle
+ * nsm_get_handle - Find or create a cached nsm_handle
  * @sap: pointer to socket address of handle to find
  * @salen: length of socket address
  * @hostname: pointer to C string containing hostname to find
  * @hostname_len: length of C string
- * @create: one means create new handle if not found in cache
  *
- * Behavior is modulated by the global nsm_use_hostnames variable
- * and by the @create argument.
+ * Behavior is modulated by the global nsm_use_hostnames variable.
  *
- * Returns a cached nsm_handle after bumping its ref count, or if
- * @create is set, returns a fresh nsm_handle if a handle that
- * matches @sap and/or @hostname cannot be found in the handle cache.
- * Returns NULL if an error occurs.
+ * Returns a cached nsm_handle after bumping its ref count, or
+ * returns a fresh nsm_handle if a handle that matches @sap and/or
+ * @hostname cannot be found in the handle cache.  Returns NULL if
+ * an error occurs.
  */
-struct nsm_handle *nsm_find(const struct sockaddr *sap, const size_t salen,
-                            const char *hostname, const size_t hostname_len,
-                            const int create)
+struct nsm_handle *nsm_get_handle(const struct sockaddr *sap,
+                                  const size_t salen, const char *hostname,
+                                  const size_t hostname_len)
 {
         struct nsm_handle *nsm = NULL;
         struct nsm_handle *pos;
@@ -297,9 +295,6 @@ retry:
         }
         spin_unlock(&nsm_lock);
 
-        if (!create)
-                return NULL;
-
         nsm = kzalloc(sizeof(*nsm) + hostname_len + 1, GFP_KERNEL);
         if (nsm == NULL)
                 return NULL;
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 5e3ad926de89..1ccd49e97a7f 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -247,10 +247,10 @@ void		  nlm_host_rebooted(const struct nlm_reboot *);
 int               nsm_monitor(const struct nlm_host *host);
 void              nsm_unmonitor(const struct nlm_host *host);
 
-struct nsm_handle *nsm_find(const struct sockaddr *sap, const size_t salen,
+struct nsm_handle *nsm_get_handle(const struct sockaddr *sap,
+                                        const size_t salen,
                                         const char *hostname,
-                                        const size_t hostname_len,
-                                        const int create);
+                                        const size_t hostname_len);
 struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info);
 void              nsm_release(struct nsm_handle *nsm);