From 7c8a0d363aca1447a0e82e31c54d220e3ecd6a87 Mon Sep 17 00:00:00 2001 From: Nikolay Borisov Date: Fri, 27 Apr 2018 12:21:52 +0300 Subject: [PATCH] btrfs: Add assert in __btrfs_del_delalloc_inode The invariant is that when nr_delalloc_inodes is 0 then the root mustn't have any inodes on its delalloc inodes list. Signed-off-by: Nikolay Borisov Signed-off-by: David Sterba --- fs/btrfs/inode.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 29374d31f1de..a7529827d89c 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1754,6 +1754,7 @@ void __btrfs_del_delalloc_inode(struct btrfs_root *root, &inode->runtime_flags); root->nr_delalloc_inodes--; if (!root->nr_delalloc_inodes) { + ASSERT(list_empty(&root->delalloc_inodes)); spin_lock(&fs_info->delalloc_root_lock); BUG_ON(list_empty(&root->delalloc_root)); list_del_init(&root->delalloc_root);