From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx144.postini.com [74.125.245.144]) by kanga.kvack.org (Postfix) with SMTP id 440566B004D for ; Mon, 16 Jul 2012 12:16:14 -0400 (EDT) Received: by yenr5 with SMTP id r5so6211117yen.14 for ; Mon, 16 Jul 2012 09:16:13 -0700 (PDT) From: Joonsoo Kim Subject: [PATCH 1/3] mm: correct return value of migrate_pages() Date: Tue, 17 Jul 2012 01:14:30 +0900 Message-Id: <1342455272-32703-1-git-send-email-js1304@gmail.com> In-Reply-To: References: Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Joonsoo Kim , Christoph Lameter migrate_pages() should return number of pages not migrated or error code. When unmap_and_move return -EAGAIN, outer loop is re-execution without initialising nr_failed. This makes nr_failed over-counted. So this patch correct it by initialising nr_failed in outer loop. Signed-off-by: Joonsoo Kim Cc: Christoph Lameter diff --git a/mm/migrate.c b/mm/migrate.c index be26d5c..294d52a 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -982,6 +982,7 @@ int migrate_pages(struct list_head *from, for(pass = 0; pass < 10 && retry; pass++) { retry = 0; + nr_failed = 0; list_for_each_entry_safe(page, page2, from, lru) { cond_resched(); -- 1.7.9.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org