lockd: prepare nlm_lockowner for use by the server

The nlm_lockowner structure that the client uses to track locks is
generally useful to the server as well.  Very similar functions to handle
allocation and tracking of the nlm_lockowner will follow. Rename the client
functions for clarity.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/lockd/clntproc.c

@@ -47,13 +47,14 @@ void nlmclnt_next_cookie(struct nlm_cookie *c)
 	c->len=4;
 }
 
-static struct nlm_lockowner *nlm_get_lockowner(struct nlm_lockowner *lockowner)
+static struct nlm_lockowner *
+nlmclnt_get_lockowner(struct nlm_lockowner *lockowner)
 {
 	refcount_inc(&lockowner->count);
 	return lockowner;
 }
 
-static void nlm_put_lockowner(struct nlm_lockowner *lockowner)
+void nlmclnt_put_lockowner(struct nlm_lockowner *lockowner)
 {
 	if (!refcount_dec_and_lock(&lockowner->count, &lockowner->host->h_lock))
 		return;
@@ -82,28 +83,28 @@ static inline uint32_t __nlm_alloc_pid(struct nlm_host *host)
 	return res;
 }
 
-static struct nlm_lockowner *__nlm_find_lockowner(struct nlm_host *host, fl_owner_t owner)
+static struct nlm_lockowner *__nlmclnt_find_lockowner(struct nlm_host *host, fl_owner_t owner)
 {
 	struct nlm_lockowner *lockowner;
 	list_for_each_entry(lockowner, &host->h_lockowners, list) {
 		if (lockowner->owner != owner)
 			continue;
-		return nlm_get_lockowner(lockowner);
+		return nlmclnt_get_lockowner(lockowner);
 	}
 	return NULL;
 }
 
-static struct nlm_lockowner *nlm_find_lockowner(struct nlm_host *host, fl_owner_t owner)
+static struct nlm_lockowner *nlmclnt_find_lockowner(struct nlm_host *host, fl_owner_t owner)
 {
 	struct nlm_lockowner *res, *new = NULL;
 
 	spin_lock(&host->h_lock);
-	res = __nlm_find_lockowner(host, owner);
+	res = __nlmclnt_find_lockowner(host, owner);
 	if (res == NULL) {
 		spin_unlock(&host->h_lock);
 		new = kmalloc(sizeof(*new), GFP_KERNEL);
 		spin_lock(&host->h_lock);
-		res = __nlm_find_lockowner(host, owner);
+		res = __nlmclnt_find_lockowner(host, owner);
 		if (res == NULL && new != NULL) {
 			res = new;
 			refcount_set(&new->count, 1);
@@ -457,7 +458,7 @@ static void nlmclnt_locks_copy_lock(struct file_lock *new, struct file_lock *fl)
 {
 	spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);
 	new->fl_u.nfs_fl.state = fl->fl_u.nfs_fl.state;
-	new->fl_u.nfs_fl.owner = nlm_get_lockowner(fl->fl_u.nfs_fl.owner);
+	new->fl_u.nfs_fl.owner = nlmclnt_get_lockowner(fl->fl_u.nfs_fl.owner);
 	list_add_tail(&new->fl_u.nfs_fl.list, &fl->fl_u.nfs_fl.owner->host->h_granted);
 	spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);
 }
@@ -467,7 +468,7 @@ static void nlmclnt_locks_release_private(struct file_lock *fl)
 	spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);
 	list_del(&fl->fl_u.nfs_fl.list);
 	spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);
-	nlm_put_lockowner(fl->fl_u.nfs_fl.owner);
+	nlmclnt_put_lockowner(fl->fl_u.nfs_fl.owner);
 }
 
 static const struct file_lock_operations nlmclnt_lock_ops = {
@@ -478,7 +479,7 @@ static const struct file_lock_operations nlmclnt_lock_ops = {
 static void nlmclnt_locks_init_private(struct file_lock *fl, struct nlm_host *host)
 {
 	fl->fl_u.nfs_fl.state = 0;
-	fl->fl_u.nfs_fl.owner = nlm_find_lockowner(host, fl->fl_owner);
+	fl->fl_u.nfs_fl.owner = nlmclnt_find_lockowner(host, fl->fl_owner);
 	INIT_LIST_HEAD(&fl->fl_u.nfs_fl.list);
 	fl->fl_ops = &nlmclnt_lock_ops;
 }