Commit 70b7da30 authored by Li Zefan's avatar Li Zefan

btrfs: Free fully occupied bitmap in cluster

If there's no more free space in a bitmap, we should free it.
Reviewed-by: default avatarJosef Bacik <josef@redhat.com>
Signed-off-by: default avatarLi Zefan <lizf@cn.fujitsu.com>
parent edf6e2d1
...@@ -1788,6 +1788,8 @@ static u64 btrfs_alloc_from_bitmap(struct btrfs_block_group_cache *block_group, ...@@ -1788,6 +1788,8 @@ static u64 btrfs_alloc_from_bitmap(struct btrfs_block_group_cache *block_group,
ret = search_start; ret = search_start;
bitmap_clear_bits(block_group, entry, ret, bytes); bitmap_clear_bits(block_group, entry, ret, bytes);
if (entry->bytes == 0)
free_bitmap(block_group, entry);
out: out:
spin_unlock(&cluster->lock); spin_unlock(&cluster->lock);
spin_unlock(&block_group->tree_lock); spin_unlock(&block_group->tree_lock);
......
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