From nobody Tue Feb 10 15:45:02 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1522322091672854.4993805931921; Thu, 29 Mar 2018 04:14:51 -0700 (PDT) Received: from localhost ([::1]:41791 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f1VW6-0005fg-IH for importer@patchew.org; Thu, 29 Mar 2018 07:14:50 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60745) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f1VRK-0001hU-PM for qemu-devel@nongnu.org; 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Thu, 29 Mar 2018 11:09:49 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Thu, 29 Mar 2018 11:09:49 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'famz@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [RFC PATCH 5/8] file-posix: Implement bdrv_co_map_range 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: Kevin Wolf , Fam Zheng , qemu-block@nongnu.org, Max Reitz , Stefan Hajnoczi , pbonzini@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: Fam Zheng --- block/file-posix.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/block/file-posix.c b/block/file-posix.c index b13bc89423..4e615d937e 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -1656,6 +1656,17 @@ static int coroutine_fn raw_co_pwritev(BlockDriverSt= ate *bs, uint64_t offset, return raw_co_prw(bs, offset, bytes, qiov, QEMU_AIO_WRITE); } =20 +static int raw_co_map_range(BlockDriverState *bs, int64_t offset, + int64_t bytes, int64_t *pnum, int64_t *map, + BlockDriverState **file, + int flags) +{ + *file =3D bs; + *pnum =3D bytes; + *map =3D offset; + return BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID; +} + static int raw_co_copy_range(BlockDriverState *bs, int64_t off_in, BlockDriverState *out, int64_t off_out, int bytes) @@ -2389,6 +2400,7 @@ BlockDriver bdrv_file =3D { .bdrv_co_preadv =3D raw_co_preadv, .bdrv_co_pwritev =3D raw_co_pwritev, .bdrv_co_copy_range =3D raw_co_copy_range, + .bdrv_co_map_range =3D raw_co_map_range, .bdrv_aio_flush =3D raw_aio_flush, .bdrv_aio_pdiscard =3D raw_aio_pdiscard, .bdrv_refresh_limits =3D raw_refresh_limits, @@ -2867,6 +2879,7 @@ static BlockDriver bdrv_host_device =3D { .bdrv_co_preadv =3D raw_co_preadv, .bdrv_co_pwritev =3D raw_co_pwritev, .bdrv_co_copy_range =3D raw_co_copy_range, + .bdrv_co_map_range =3D raw_co_map_range, .bdrv_aio_flush =3D raw_aio_flush, .bdrv_aio_pdiscard =3D hdev_aio_pdiscard, .bdrv_refresh_limits =3D raw_refresh_limits, @@ -2990,6 +3003,7 @@ static BlockDriver bdrv_host_cdrom =3D { .bdrv_co_preadv =3D raw_co_preadv, .bdrv_co_pwritev =3D raw_co_pwritev, .bdrv_co_copy_range =3D raw_co_copy_range, + .bdrv_co_map_range =3D raw_co_map_range, .bdrv_aio_flush =3D raw_aio_flush, .bdrv_refresh_limits =3D raw_refresh_limits, .bdrv_io_plug =3D raw_aio_plug, @@ -3121,6 +3135,7 @@ static BlockDriver bdrv_host_cdrom =3D { .bdrv_co_preadv =3D raw_co_preadv, .bdrv_co_pwritev =3D raw_co_pwritev, .bdrv_co_copy_range =3D raw_co_copy_range, + .bdrv_co_map_range =3D raw_co_map_range, .bdrv_aio_flush =3D raw_aio_flush, .bdrv_refresh_limits =3D raw_refresh_limits, .bdrv_io_plug =3D raw_aio_plug, --=20 2.14.3