Btrfs_previous_item() has a parameter to specify minimal objectid to return. But surprisingly it doesn't use it at all. Although that's OK, but it would take years long for large tree, so return it earlier. Signed-off-by: Qu Wenruo <quwenruo@xxxxxxxxxxxxxx> --- ctree.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/ctree.c b/ctree.c index 079696e..3a9f417 100644 --- a/ctree.c +++ b/ctree.c @@ -2894,6 +2894,8 @@ int btrfs_previous_item(struct btrfs_root *root, btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]); if (found_key.type == type) return 0; + if (found_key.objectid < min_objectid) + break; } return 1; } -- 2.8.2 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
