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

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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>
This commit is contained in:
Filipe Manana 2014-04-09 15:37:06 +01:00 committed by Chris Mason
parent 35045bf2fd
commit 1f21ef0a34
1 changed files with 6 additions and 0 deletions
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6
fs/btrfs/disk-io.c
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@ -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,