d_walk(): kill 'finish' callback

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/dcache.c b/fs/dcache.c
index 449d0f8..af645c2 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1230,13 +1230,11 @@ enum d_walk_ret {
  * @parent:    start of walk
  * @data:      data passed to @enter() and @finish()
  * @enter:     callback when first entering the dentry
- * @finish:    callback when successfully finished the walk
  *
- * The @enter() and @finish() callbacks are called with d_lock held.
+ * The @enter() callbacks are called with d_lock held.
  */
 static void d_walk(struct dentry *parent, void *data,
-                  enum d_walk_ret (*enter)(void *, struct dentry *),
-                  void (*finish)(void *))
+                  enum d_walk_ret (*enter)(void *, struct dentry *))
 {
        struct dentry *this_parent;
        struct list_head *next;
@@ -1325,8 +1323,6 @@ ascend:
        if (need_seqretry(&rename_lock, seq))
                goto rename_retry;
        rcu_read_unlock();
-       if (finish)
-               finish(data);
 
 out_unlock:
        spin_unlock(&this_parent->d_lock);
@@ -1375,7 +1371,7 @@ int path_has_submounts(const struct path *parent)
        struct check_mount data = { .mnt = parent->mnt, .mounted = 0 };
 
        read_seqlock_excl(&mount_lock);
-       d_walk(parent->dentry, &data, path_check_mount, NULL);
+       d_walk(parent->dentry, &data, path_check_mount);
        read_sequnlock_excl(&mount_lock);
 
        return data.mounted;
@@ -1483,7 +1479,7 @@ void shrink_dcache_parent(struct dentry *parent)
                data.start = parent;
                data.found = 0;
 
-               d_walk(parent, &data, select_collect, NULL);
+               d_walk(parent, &data, select_collect);
                if (!data.found)
                        break;
 
@@ -1518,7 +1514,7 @@ static enum d_walk_ret umount_check(void *_data, struct dentry *dentry)
 static void do_one_tree(struct dentry *dentry)
 {
        shrink_dcache_parent(dentry);
-       d_walk(dentry, dentry, umount_check, NULL);
+       d_walk(dentry, dentry, umount_check);
        d_drop(dentry);
        dput(dentry);
 }
@@ -1575,7 +1571,7 @@ void d_invalidate(struct dentry *dentry)
        shrink_dcache_parent(dentry);
        for (;;) {
                struct dentry *victim = NULL;
-               d_walk(dentry, &victim, find_submount, NULL);
+               d_walk(dentry, &victim, find_submount);
                if (!victim) {
                        if (had_submounts)
                                shrink_dcache_parent(dentry);
@@ -3082,7 +3078,7 @@ static enum d_walk_ret d_genocide_kill(void *data, struct dentry *dentry)
 
 void d_genocide(struct dentry *parent)
 {
-       d_walk(parent, parent, d_genocide_kill, NULL);
+       d_walk(parent, parent, d_genocide_kill);
 }
 
 EXPORT_SYMBOL(d_genocide);