From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=37788 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OOWzp-000830-Re for qemu-devel@nongnu.org; Tue, 15 Jun 2010 10:20:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OOWzm-00007y-N7 for qemu-devel@nongnu.org; Tue, 15 Jun 2010 10:20:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:63711) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OOWzm-00007r-FV for qemu-devel@nongnu.org; Tue, 15 Jun 2010 10:20:06 -0400 From: Kevin Wolf Date: Tue, 15 Jun 2010 16:19:29 +0200 Message-Id: <1276611581-3757-8-git-send-email-kwolf@redhat.com> In-Reply-To: <1276611581-3757-1-git-send-email-kwolf@redhat.com> References: <1276611581-3757-1-git-send-email-kwolf@redhat.com> Subject: [Qemu-devel] [PATCH 07/19] qcow2: Restore L1 entry on l2_allocate failure List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: anthony@codemonkey.ws Cc: kwolf@redhat.com, qemu-devel@nongnu.org If writing the L1 table to disk failed, we need to restore its old content in memory to avoid inconsistencies. Reported-by: Juan Quintela Signed-off-by: Kevin Wolf --- block/qcow2-cluster.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 03a9f25..5760ad6 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -285,6 +285,7 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) return 0; fail: + s->l1_table[l1_index] = old_l2_offset; qcow2_l2_cache_reset(bs); return ret; } -- 1.6.6.1