From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38461) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bgyPu-0003Cs-Ad for qemu-devel@nongnu.org; Mon, 05 Sep 2016 14:14:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bgyPs-00016Q-Hx for qemu-devel@nongnu.org; Mon, 05 Sep 2016 14:14:45 -0400 From: Kevin Wolf Date: Mon, 5 Sep 2016 20:13:43 +0200 Message-Id: <1473099234-10882-32-git-send-email-kwolf@redhat.com> In-Reply-To: <1473099234-10882-1-git-send-email-kwolf@redhat.com> References: <1473099234-10882-1-git-send-email-kwolf@redhat.com> Subject: [Qemu-devel] [PULL 31/42] qcow2: fix iovec size at qcow2_co_pwritev_compressed List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org From: Pavel Butsykin Use bytes as the size would be more exact than s->cluster_size. Although qemu_iovec_to_buf() will not allow to go beyond the qiov. Signed-off-by: Pavel Butsykin Signed-off-by: Kevin Wolf --- block/qcow2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/qcow2.c b/block/qcow2.c index adf4514..c079aa8 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -2565,7 +2565,7 @@ qcow2_co_pwritev_compressed(BlockDriverState *bs, uint64_t offset, /* Zero-pad last write if image size is not cluster aligned */ memset(buf + bytes, 0, s->cluster_size - bytes); } - qemu_iovec_to_buf(qiov, 0, buf, s->cluster_size); + qemu_iovec_to_buf(qiov, 0, buf, bytes); out_buf = g_malloc(s->cluster_size); -- 1.8.3.1