fs/ubifs: use rbtree postorder iteration helper instead of opencoding

[mirror_ubuntu-jammy-kernel.git] / fs / ubifs / tnc.c

diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 349f31a30f401cb488a595de91cec30cfbf9d647..9083bc7ed4ae49f5d9550c20c1943400860114ab 100644 (file)
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -178,27 +178,11 @@ static int ins_clr_old_idx_znode(struct ubifs_info *c,
  */
 void destroy_old_idx(struct ubifs_info *c)
 {
-       struct rb_node *this = c->old_idx.rb_node;
-       struct ubifs_old_idx *old_idx;
+       struct ubifs_old_idx *old_idx, *n;
 
-       while (this) {
-               if (this->rb_left) {
-                       this = this->rb_left;
-                       continue;
-               } else if (this->rb_right) {
-                       this = this->rb_right;
-                       continue;
-               }
-               old_idx = rb_entry(this, struct ubifs_old_idx, rb);
-               this = rb_parent(this);
-               if (this) {
-                       if (this->rb_left == &old_idx->rb)
-                               this->rb_left = NULL;
-                       else
-                               this->rb_right = NULL;
-               }
+       rbtree_postorder_for_each_entry_safe(old_idx, n, &c->old_idx, rb)
                kfree(old_idx);
-       }
+
        c->old_idx = RB_ROOT;
 }