Btrfs-prog/send: fix wrong best-parent assignment in, find_good_parent()

We use find_good_parent() to look for a suit snapshot in the clone source
snapshots as the parent, not the source subvolume of the snapshot which
is about to be sent. fix it

Reviewed-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Cheng Yang <chenyang.fnst@cn.fujitsu.com>

diff --git a/cmds-send.c b/cmds-send.c
index d2f7691..4a8478d 100644 (file)
--- a/cmds-send.c
+++ b/cmds-send.c
@@ -152,7 +152,7 @@ static int find_good_parent(struct btrfs_send *s, u64 root_id, u64 *found)
                if (tmp < 0)
                        tmp *= -1;
                if (tmp < best_diff) {
-                       best_parent = parent;
+                       best_parent = parent2;
                        best_diff = tmp;
                }
        }