aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLiu Bo <bo.li.liu@oracle.com>2016-07-20 17:33:44 -0700
committerChris Mason <clm@fb.com>2016-08-25 03:58:17 -0700
commitf3bca8028bd934e96257b8bd1143e6474fe98465 (patch)
tree57752c3b349726c71b85d93f69c6cf5f4b0f098c
parentd8422ba334f9df16e071bc77707e55fd7f8446ae (diff)
downloadlinux-stericsson-f3bca8028bd934e96257b8bd1143e6474fe98465.tar.gz
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: Liu Bo <bo.li.liu@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
-rw-r--r--fs/btrfs/extent-tree.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c2b81b0d3fe0..e962b0e25324 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -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);