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Tue, 30 Apr 2019 15:43:39 +0000 (UTC) Received: from linux.fritz.box.com (unknown [10.36.118.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 47BF64D5; Tue, 30 Apr 2019 15:43:38 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Tue, 30 Apr 2019 17:42:41 +0200 Message-Id: <20190430154244.30083-25-kwolf@redhat.com> In-Reply-To: <20190430154244.30083-1-kwolf@redhat.com> References: <20190430154244.30083-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Tue, 30 Apr 2019 15:43:39 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 24/27] qemu-img: use buffer-based io 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, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Vladimir Sementsov-Ogievskiy Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Stefan Hajnoczi Reviewed-by: Stefano Garzarella Signed-off-by: Kevin Wolf --- qemu-img.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/qemu-img.c b/qemu-img.c index ddd55ab291..e6ad5978e0 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -1680,7 +1680,6 @@ static int coroutine_fn convert_co_read(ImgConvertState *s, int64_t sector_num, int nb_sectors, uint8_t *buf) { int n, ret; - QEMUIOVector qiov; assert(nb_sectors <= s->buf_sectors); while (nb_sectors > 0) { @@ -1696,11 +1695,10 @@ static int coroutine_fn convert_co_read(ImgConvertState *s, int64_t sector_num, bs_sectors = s->src_sectors[src_cur]; n = MIN(nb_sectors, bs_sectors - (sector_num - src_cur_offset)); - qemu_iovec_init_buf(&qiov, buf, n << BDRV_SECTOR_BITS); - ret = blk_co_preadv( + ret = blk_co_pread( blk, (sector_num - src_cur_offset) << BDRV_SECTOR_BITS, - n << BDRV_SECTOR_BITS, &qiov, 0); + n << BDRV_SECTOR_BITS, buf, 0); if (ret < 0) { return ret; } @@ -1719,7 +1717,6 @@ static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num, enum ImgConvertBlockStatus status) { int ret; - QEMUIOVector qiov; while (nb_sectors > 0) { int n = nb_sectors; @@ -1747,10 +1744,8 @@ static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num, (s->compressed && !buffer_is_zero(buf, n * BDRV_SECTOR_SIZE))) { - qemu_iovec_init_buf(&qiov, buf, n << BDRV_SECTOR_BITS); - - ret = blk_co_pwritev(s->target, sector_num << BDRV_SECTOR_BITS, - n << BDRV_SECTOR_BITS, &qiov, flags); + ret = blk_co_pwrite(s->target, sector_num << BDRV_SECTOR_BITS, + n << BDRV_SECTOR_BITS, buf, flags); if (ret < 0) { return ret; }