bcachefs: Be sure to check ptr->dev in copygc pred function

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

diff --git a/fs/bcachefs/movinggc.c b/fs/bcachefs/movinggc.c
index b805371fe99f8b7487166f3f3b3512769e71b82a..651381a5ccc5f7b3577f7f68468ccf90a90539fe 100644 (file)
--- a/fs/bcachefs/movinggc.c
+++ b/fs/bcachefs/movinggc.c
@@ -85,6 +85,7 @@ static enum data_cmd copygc_pred(struct bch_fs *c, void *arg,
                BUG_ON(i != j);
 #endif
                if (i >= 0 &&
+                   p.ptr.dev == h->data[i].dev &&
                    p.ptr.offset < h->data[i].offset + ca->mi.bucket_size &&
                    p.ptr.gen == h->data[i].gen) {
                        /*