{"id":813856,"url":"http://patchwork.ozlabs.org/api/patches/813856/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20170914144032.14945-20-eblake@redhat.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20170914144032.14945-20-eblake@redhat.com>","list_archive_url":null,"date":"2017-09-14T14:40:31","name":"[v3,19/20] vvfat: Switch to .bdrv_co_block_status()","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"036305bc5efdf83cb9570de8a182e8ca37a1d292","submitter":{"id":6591,"url":"http://patchwork.ozlabs.org/api/people/6591/?format=json","name":"Eric Blake","email":"eblake@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20170914144032.14945-20-eblake@redhat.com/mbox/","series":[{"id":3114,"url":"http://patchwork.ozlabs.org/api/series/3114/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=3114","date":"2017-09-14T14:40:12","name":"add byte-based block_status driver callbacks","version":3,"mbox":"http://patchwork.ozlabs.org/series/3114/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/813856/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/813856/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=)","ext-mx02.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com","ext-mx02.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=eblake@redhat.com"],"Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xtM0M0Bwlz9s81\n\tfor ;\n\tFri, 15 Sep 2017 00:50:43 +1000 (AEST)","from localhost ([::1]:48218 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t)\n\tid 1dsVTV-00070S-39\n\tfor incoming@patchwork.ozlabs.org; Thu, 14 Sep 2017 10:50:41 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:47029)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from ) id 1dsVKp-0006Ou-7G\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 10:41:44 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from ) id 1dsVKo-00034t-Co\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 10:41:43 -0400","from mx1.redhat.com ([209.132.183.28]:47092)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from )\n\tid 1dsVKl-00032I-Bj; Thu, 14 Sep 2017 10:41:39 -0400","from smtp.corp.redhat.com\n\t(int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 5EA9480C05;\n\tThu, 14 Sep 2017 14:41:38 +0000 (UTC)","from red.redhat.com (ovpn-123-70.rdu2.redhat.com [10.10.123.70])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 2821F60841;\n\tThu, 14 Sep 2017 14:41:37 +0000 (UTC)"],"DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com 5EA9480C05","From":"Eric Blake ","To":"qemu-devel@nongnu.org","Date":"Thu, 14 Sep 2017 09:40:31 -0500","Message-Id":"<20170914144032.14945-20-eblake@redhat.com>","In-Reply-To":"<20170914144032.14945-1-eblake@redhat.com>","References":"<20170914144032.14945-1-eblake@redhat.com>","X-Scanned-By":"MIMEDefang 2.79 on 10.5.11.13","X-Greylist":"Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.26]);\n\tThu, 14 Sep 2017 14:41:38 +0000 (UTC)","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]\n\t[fuzzy]","X-Received-From":"209.132.183.28","Subject":"[Qemu-devel] [PATCH v3 19/20] vvfat: Switch to\n\t.bdrv_co_block_status()","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"kwolf@redhat.com, famz@redhat.com, jsnow@redhat.com,\n\tqemu-block@nongnu.org, Max Reitz ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t"},"content":"We are gradually moving away from sector-based interfaces, towards\nbyte-based. Update the vvfat driver accordingly. Note that we\ncan rely on the block driver having already clamped limits to our\nblock size, and simplify accordingly.\n\nSigned-off-by: Eric Blake \n\n---\nv2: rebase to earlier changes, simplify\n---\n block/vvfat.c | 16 +++++++---------\n 1 file changed, 7 insertions(+), 9 deletions(-)","diff":"diff --git a/block/vvfat.c b/block/vvfat.c\nindex c54fa94651..6a08d68ae3 100644\n--- a/block/vvfat.c\n+++ b/block/vvfat.c\n@@ -3090,15 +3090,13 @@ vvfat_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes,\n return ret;\n }\n\n-static int64_t coroutine_fn vvfat_co_get_block_status(BlockDriverState *bs,\n- int64_t sector_num, int nb_sectors, int *n, BlockDriverState **file)\n+static int64_t coroutine_fn vvfat_co_block_status(BlockDriverState *bs,\n+ bool mapping,\n+ int64_t offset,\n+ int64_t bytes, int64_t *n,\n+ BlockDriverState **file)\n {\n- *n = bs->total_sectors - sector_num;\n- if (*n > nb_sectors) {\n- *n = nb_sectors;\n- } else if (*n < 0) {\n- return 0;\n- }\n+ *n = bytes;\n return BDRV_BLOCK_DATA;\n }\n\n@@ -3258,7 +3256,7 @@ static BlockDriver bdrv_vvfat = {\n\n .bdrv_co_preadv = vvfat_co_preadv,\n .bdrv_co_pwritev = vvfat_co_pwritev,\n- .bdrv_co_get_block_status = vvfat_co_get_block_status,\n+ .bdrv_co_block_status = vvfat_co_block_status,\n };\n\n static void bdrv_vvfat_init(void)\n","prefixes":["v3","19/20"]}