Commit 1f21ef0a authored Apr 09, 2014 by Filipe Manana Committed by Chris Mason Jun 09, 2014

Btrfs: check if items are ordered when a leaf is marked dirty



To ease finding bugs during development related to modifying btree leaves
in such a way that it makes its items not sorted by key anymore. Since this
is an expensive check, it's only enabled if CONFIG_BTRFS_FS_CHECK_INTEGRITY
is set, which isn't meant to be enabled for regular users.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

parent 35045bf2

fs/btrfs/disk-io.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -3738,6 +3738,12 @@ void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
		__percpu_counter_add(&root->fs_info->dirty_metadata_bytes,
		buf->len,
		root->fs_info->dirty_metadata_batch);
		#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
		if (btrfs_header_level(buf) == 0 && check_leaf(root, buf)) {
		btrfs_print_leaf(root, buf);
		ASSERT(0);
		}
		#endif
		}

		static void __btrfs_btree_balance_dirty(struct btrfs_root *root,