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Commit 5e71b5d5 authored by Li Zefan's avatar Li Zefan
Browse files

btrfs: Update stats when allocating from a cluster 



When allocating extent entry from a cluster, we should update
the free_space and free_extents fields of the block group.

Reviewed-by: default avatarJosef Bacik <josef@redhat.com>
Signed-off-by: default avatarLi Zefan <lizf@cn.fujitsu.com>
parent 70b7da30

fs/btrfs/free-space-cache.c

+14 −3
Original line number Diff line number Diff line
@@ -1843,15 +1843,26 @@ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group, 
		entry->offset += bytes;

		entry->bytes -= bytes;



		if (entry->bytes == 0) {

		if (entry->bytes == 0)

			rb_erase(&entry->offset_index, &cluster->root);

			kfree(entry);

		}

		break;

	}

out:

	spin_unlock(&cluster->lock);



	if (!ret)

		return 0;



	spin_lock(&block_group->tree_lock);



	block_group->free_space -= bytes;

	if (entry->bytes == 0) {

		block_group->free_extents--;

		kfree(entry);

	}



	spin_unlock(&block_group->tree_lock);



	return ret;

}