From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36759) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZpB4T-0006Gm-LA for qemu-devel@nongnu.org; Thu, 22 Oct 2015 04:18:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZpB4S-0001ex-C6 for qemu-devel@nongnu.org; Thu, 22 Oct 2015 04:18:01 -0400 From: Fam Zheng Date: Thu, 22 Oct 2015 16:17:38 +0800 Message-Id: <1445501858-18790-3-git-send-email-famz@redhat.com> In-Reply-To: <1445501858-18790-1-git-send-email-famz@redhat.com> References: <1445501858-18790-1-git-send-email-famz@redhat.com> Subject: [Qemu-devel] [PATCH 2/2] qcow2: Translate -ERANGE to -ENOSPC List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , Paolo Bonzini , Peter Lieven , qemu-block@nongnu.org, Ronnie Sahlberg This will make the default werror (=enospc) work better when qcow2 is created on top of iscsi or other block devices. Signed-off-by: Fam Zheng --- block/qcow2.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/block/qcow2.c b/block/qcow2.c index bacc4f2..8edf0fe 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1586,6 +1586,12 @@ static coroutine_fn int qcow2_co_writev(BlockDriverState *bs, cur_nr_sectors, &hd_qiov); qemu_co_mutex_lock(&s->lock); if (ret < 0) { + if (ret == -ERANGE) { + /* Out of range access means we're already allocating clusters + * beyond end of disk, fix the error code to support + * werror=enospc. */ + ret = -ENOSPC; + } goto fail; } -- 2.4.3