keep ->cleaning list in order.

As we processes blocks from the segment in order, it is best
to keep them in order for later processing.
They will be sorted again when being added to a cluster,
but the more we help here, the better.

Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/clean.c b/clean.c
index 95e2eaa5ad0f270fb89b04957625290c188ec299..17812c7c39eefc8b2ead7365c063611d1a9ca73c 100644 (file)
--- a/clean.c
+++ b/clean.c
@@ -423,7 +423,7 @@ static int try_clean(struct fs *fs, struct toclean *tc)
                                break;
 
                        if (list_empty(&b->cleaning)) {
-                               list_add(&b->cleaning, &tc->cleaning);
+                               list_add_tail(&b->cleaning, &tc->cleaning);
                                getdref(b, MKREF(cleaning));
                                igrab(ino);
                        }