From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f197.google.com (mail-qk0-f197.google.com [209.85.220.197]) by kanga.kvack.org (Postfix) with ESMTP id 7A5376B0314 for ; Mon, 26 Jun 2017 08:12:30 -0400 (EDT) Received: by mail-qk0-f197.google.com with SMTP id r65so22937330qki.8 for ; Mon, 26 Jun 2017 05:12:30 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id p16si5880264qtb.121.2017.06.26.05.12.28 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 26 Jun 2017 05:12:29 -0700 (PDT) From: Ming Lei Subject: [PATCH v2 03/51] kernel/power/swap.c: comment on direct access to bvec table Date: Mon, 26 Jun 2017 20:09:46 +0800 Message-Id: <20170626121034.3051-4-ming.lei@redhat.com> In-Reply-To: <20170626121034.3051-1-ming.lei@redhat.com> References: <20170626121034.3051-1-ming.lei@redhat.com> Sender: owner-linux-mm@kvack.org List-ID: To: Jens Axboe , Christoph Hellwig , Huang Ying , Andrew Morton , Alexander Viro Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, Ming Lei , "Rafael J. Wysocki" , linux-pm@vger.kernel.org Cc: "Rafael J. Wysocki" Cc: linux-pm@vger.kernel.org Signed-off-by: Ming Lei --- kernel/power/swap.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 57d22571f306..aa52ccc03fcc 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -238,6 +238,8 @@ static void hib_init_batch(struct hib_bio_batch *hb) static void hib_end_io(struct bio *bio) { struct hib_bio_batch *hb = bio->bi_private; + + /* single page bio, safe for multipage bvec */ struct page *page = bio->bi_io_vec[0].bv_page; if (bio->bi_status) { -- 2.9.4 -- 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