Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752614AbdHHIsy (ORCPT ); Tue, 8 Aug 2017 04:48:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47640 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752050AbdHHIsw (ORCPT ); Tue, 8 Aug 2017 04:48:52 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com A1A5A883BC Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=ming.lei@redhat.com From: Ming Lei 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 Subject: [PATCH v3 15/49] bvec_iter: introduce BVEC_ITER_ALL_INIT Date: Tue, 8 Aug 2017 16:45:14 +0800 Message-Id: <20170808084548.18963-16-ming.lei@redhat.com> In-Reply-To: <20170808084548.18963-1-ming.lei@redhat.com> References: <20170808084548.18963-1-ming.lei@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Tue, 08 Aug 2017 08:48:51 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 806 Lines: 28 Introduce BVEC_ITER_ALL_INIT for iterating one bio from start to end. Signed-off-by: Ming Lei --- include/linux/bvec.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/bvec.h b/include/linux/bvec.h index ec8a4d7af6bd..fe7a22dd133b 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -125,4 +125,13 @@ static inline bool bvec_iter_rewind(const struct bio_vec *bv, ((bvl = bvec_iter_bvec((bio_vec), (iter))), 1); \ bvec_iter_advance((bio_vec), &(iter), (bvl).bv_len)) +/* for iterating one bio from start to end */ +#define BVEC_ITER_ALL_INIT (struct bvec_iter) \ +{ \ + .bi_sector = 0, \ + .bi_size = UINT_MAX, \ + .bi_idx = 0, \ + .bi_bvec_done = 0, \ +} + #endif /* __LINUX_BVEC_ITER_H */ -- 2.9.4