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Commit f3bca802 authored by Liu Bo's avatar Liu Bo Committed by Chris Mason
Browse files

Btrfs: add ASSERT for block group's memory leak 



This adds several ASSERT()' s to report memory leak of block group cache.

Signed-off-by: default avatarLiu Bo <bo.li.liu@oracle.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent d8422ba3

fs/btrfs/extent-tree.c

+5 −0
Original line number Diff line number Diff line
@@ -9942,6 +9942,7 @@ void btrfs_put_block_group_cache(struct btrfs_fs_info *info) 
		block_group->iref = 0;

		block_group->inode = NULL;

		spin_unlock(&block_group->lock);

		ASSERT(block_group->io_ctl.inode == NULL);

		iput(inode);

		last = block_group->key.objectid + block_group->key.offset;

		btrfs_put_block_group(block_group);
@@ -9999,6 +10000,10 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info) 
			free_excluded_extents(info->extent_root, block_group);



		btrfs_remove_free_space_cache(block_group);

		ASSERT(list_empty(&block_group->dirty_list));

		ASSERT(list_empty(&block_group->io_list));

		ASSERT(list_empty(&block_group->bg_list));

		ASSERT(atomic_read(&block_group->count) == 1);

		btrfs_put_block_group(block_group);



		spin_lock(&info->block_group_cache_lock);