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@xxxxxxxxx>
---
fs/btrfs/disk-io.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index d9698fd..8bf6628 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3695,6 +3695,12 @@ 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,
--
1.9.1
--
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