Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S942938AbcJ2IOQ (ORCPT ); Sat, 29 Oct 2016 04:14:16 -0400 Received: from mail-pf0-f195.google.com ([209.85.192.195]:35773 "EHLO mail-pf0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S941619AbcJ2INX (ORCPT ); Sat, 29 Oct 2016 04:13:23 -0400 From: Ming Lei To: Jens Axboe , linux-kernel@vger.kernel.org Cc: linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig , "Kirill A . Shutemov" , Ming Lei , Jaegeuk Kim , Chao Yu , linux-f2fs-devel@lists.sourceforge.net (open list:F2FS FILE SYSTEM) Subject: [PATCH 20/60] f2fs: f2fs_read_end_io: comment on direct access to bvec table Date: Sat, 29 Oct 2016 16:08:19 +0800 Message-Id: <1477728600-12938-21-git-send-email-tom.leiming@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1477728600-12938-1-git-send-email-tom.leiming@gmail.com> References: <1477728600-12938-1-git-send-email-tom.leiming@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 580 Lines: 22 Signed-off-by: Ming Lei --- fs/f2fs/data.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 9ae194fd2fdb..24f6f6977d37 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -35,6 +35,10 @@ static void f2fs_read_end_io(struct bio *bio) int i; #ifdef CONFIG_F2FS_FAULT_INJECTION + /* + * It is still safe to retrieve the 1st page of the bio + * in this way after supporting multipage bvec. + */ if (time_to_inject(F2FS_P_SB(bio->bi_io_vec->bv_page), FAULT_IO)) bio->bi_error = -EIO; #endif -- 2.7.4