btrfs: migrate the block group ref counting stuff

Another easy set to move over to block-group.c.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 0 insertions, 25 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a454945227ca..dc1fb9286fee 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -68,31 +68,6 @@ static int block_group_bits(struct btrfs_block_group_cache *cache, u64 bits)
         return (cache->flags & bits) == bits;
 }
 
-void btrfs_get_block_group(struct btrfs_block_group_cache *cache)
-{
-        atomic_inc(&cache->count);
-}
-
-void btrfs_put_block_group(struct btrfs_block_group_cache *cache)
-{
-        if (atomic_dec_and_test(&cache->count)) {
-                WARN_ON(cache->pinned > 0);
-                WARN_ON(cache->reserved > 0);
-
-                /*
-                 * If not empty, someone is still holding mutex of
-                 * full_stripe_lock, which can only be released by caller.
-                 * And it will definitely cause use-after-free when caller
-                 * tries to release full stripe lock.
-                 *
-                 * No better way to resolve, but only to warn.
-                 */
-                WARN_ON(!RB_EMPTY_ROOT(&cache->full_stripe_locks_root.root));
-                kfree(cache->free_space_ctl);
-                kfree(cache);
-        }
-}
-
 /*
  * this adds the block group to the fs_info rb tree for the block group
  * cache