diff options
| -rw-r--r-- | mm/backing-dev.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 9e841399041a..619984fc07ec 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -681,7 +681,7 @@ static int cgwb_bdi_init(struct backing_dev_info *bdi) static void cgwb_bdi_destroy(struct backing_dev_info *bdi) { struct radix_tree_iter iter; - struct bdi_writeback_congested *congested, *congested_n; + struct rb_node *rbn; void **slot; WARN_ON(test_bit(WB_registered, &bdi->wb.state)); @@ -691,9 +691,11 @@ static void cgwb_bdi_destroy(struct backing_dev_info *bdi) radix_tree_for_each_slot(slot, &bdi->cgwb_tree, &iter, 0) cgwb_kill(*slot); - rbtree_postorder_for_each_entry_safe(congested, congested_n, - &bdi->cgwb_congested_tree, rb_node) { - rb_erase(&congested->rb_node, &bdi->cgwb_congested_tree); + while ((rbn = rb_first(&bdi->cgwb_congested_tree))) { + struct bdi_writeback_congested *congested = + rb_entry(rbn, struct bdi_writeback_congested, rb_node); + + rb_erase(rbn, &bdi->cgwb_congested_tree); congested->bdi = NULL; /* mark @congested unlinked */ } |