Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752627AbdFZMQD (ORCPT ); Mon, 26 Jun 2017 08:16:03 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59438 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752015AbdFZMPt (ORCPT ); Mon, 26 Jun 2017 08:15:49 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com CAEEAC0467C4 Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=ming.lei@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com CAEEAC0467C4 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 v2 17/51] bvec_iter: introduce BVEC_ITER_ALL_INIT Date: Mon, 26 Jun 2017 20:10:00 +0800 Message-Id: <20170626121034.3051-18-ming.lei@redhat.com> In-Reply-To: <20170626121034.3051-1-ming.lei@redhat.com> References: <20170626121034.3051-1-ming.lei@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Mon, 26 Jun 2017 12:15:39 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 805 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 89b65b82d98f..162ca7caf510 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -94,4 +94,13 @@ static inline void bvec_iter_advance(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