From patchwork Tue Jun 27 19:24:46 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Blake X-Patchwork-Id: 9813005 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C3CC1603D7 for ; Tue, 27 Jun 2017 19:32:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B8EC62807B for ; Tue, 27 Jun 2017 19:32:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ADB1228426; Tue, 27 Jun 2017 19:32:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.4 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 509792807B for ; Tue, 27 Jun 2017 19:32:43 +0000 (UTC) Received: from localhost ([::1]:57850 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dPwE6-0002zC-BM for patchwork-qemu-devel@patchwork.kernel.org; Tue, 27 Jun 2017 15:32:42 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42465) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dPw71-00061S-Ia for qemu-devel@nongnu.org; Tue, 27 Jun 2017 15:25:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dPw70-0006n1-Nc for qemu-devel@nongnu.org; Tue, 27 Jun 2017 15:25:23 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55450) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dPw6y-0006ln-Is; Tue, 27 Jun 2017 15:25:20 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 91BE83DBE9; Tue, 27 Jun 2017 19:25:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 91BE83DBE9 Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=eblake@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 91BE83DBE9 Received: from red.redhat.com (ovpn-123-78.rdu2.redhat.com [10.10.123.78]) by smtp.corp.redhat.com (Postfix) with ESMTP id C871B17A48; Tue, 27 Jun 2017 19:25:17 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Date: Tue, 27 Jun 2017 14:24:46 -0500 Message-Id: <20170627192458.15519-9-eblake@redhat.com> In-Reply-To: <20170627192458.15519-1-eblake@redhat.com> References: <20170627192458.15519-1-eblake@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Tue, 27 Jun 2017 19:25:19 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 08/20] mirror: Switch mirror_do_zero_or_discard() to byte-based X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, Jeff Cody , jsnow@redhat.com, qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP We are gradually converting to byte-based interfaces, as they are easier to reason about than sector-based. Convert another internal function (no semantic change). Signed-off-by: Eric Blake Reviewed-by: John Snow Reviewed-by: Jeff Cody Reviewed-by: Kevin Wolf --- v2: no change --- block/mirror.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/block/mirror.c b/block/mirror.c index 9e28d59..af27bcc 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -305,8 +305,8 @@ static int mirror_do_read(MirrorBlockJob *s, int64_t sector_num, } static void mirror_do_zero_or_discard(MirrorBlockJob *s, - int64_t sector_num, - int nb_sectors, + int64_t offset, + uint64_t bytes, bool is_discard) { MirrorOp *op; @@ -315,16 +315,16 @@ static void mirror_do_zero_or_discard(MirrorBlockJob *s, * so the freeing in mirror_iteration_done is nop. */ op = g_new0(MirrorOp, 1); op->s = s; - op->offset = sector_num * BDRV_SECTOR_SIZE; - op->bytes = nb_sectors * BDRV_SECTOR_SIZE; + op->offset = offset; + op->bytes = bytes; s->in_flight++; - s->bytes_in_flight += nb_sectors * BDRV_SECTOR_SIZE; + s->bytes_in_flight += bytes; if (is_discard) { - blk_aio_pdiscard(s->target, sector_num << BDRV_SECTOR_BITS, + blk_aio_pdiscard(s->target, offset, op->bytes, mirror_write_complete, op); } else { - blk_aio_pwrite_zeroes(s->target, sector_num * BDRV_SECTOR_SIZE, + blk_aio_pwrite_zeroes(s->target, offset, op->bytes, s->unmap ? BDRV_REQ_MAY_UNMAP : 0, mirror_write_complete, op); } @@ -453,7 +453,8 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s) break; case MIRROR_METHOD_ZERO: case MIRROR_METHOD_DISCARD: - mirror_do_zero_or_discard(s, sector_num, io_sectors, + mirror_do_zero_or_discard(s, sector_num * BDRV_SECTOR_SIZE, + io_sectors * BDRV_SECTOR_SIZE, mirror_method == MIRROR_METHOD_DISCARD); if (write_zeroes_ok) { io_bytes_acct = 0; @@ -657,7 +658,8 @@ static int coroutine_fn mirror_dirty_init(MirrorBlockJob *s) continue; } - mirror_do_zero_or_discard(s, sector_num, nb_sectors, false); + mirror_do_zero_or_discard(s, sector_num * BDRV_SECTOR_SIZE, + nb_sectors * BDRV_SECTOR_SIZE, false); sector_num += nb_sectors; }