From 4f15153c864d6c9503f4dd5f95944ab5b98152ed Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Wed, 17 Jan 2018 10:24:33 +0100 Subject: [PATCH 2/2] mirror: Fix inconsistent backing AioContext for after mirroring RH-Author: Stefan Hajnoczi Message-id: <20180117102433.16728-2-stefanha@redhat.com> Patchwork-id: 78656 O-Subject: [RHV-7.4.z qemu-kvm-rhev PATCH 1/1] mirror: Fix inconsistent backing AioContext for after mirroring Bugzilla: 1535125 RH-Acked-by: Paolo Bonzini RH-Acked-by: Max Reitz RH-Acked-by: Fam Zheng From: "sochin.jiang" mirror_complete opens the backing chain, which should have the same AioContext as the top when using iothreads. Make the code guarantee this, which fixes a failed assertion in bdrv_attach_child. Signed-off-by: sochin.jiang Message-id: 1498475064-39816-1-git-send-email-sochin.jiang@huawei.com [mreitz: Reworded commit message] Signed-off-by: Max Reitz (cherry picked from commit 5ce6bfe255091d532ec4555d0ede816294cb1703) Signed-off-by: Stefan Hajnoczi Signed-off-by: Miroslav Rezanina --- block.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block.c b/block.c index 49f94d1..f3b2c27 100644 --- a/block.c +++ b/block.c @@ -2087,6 +2087,7 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict *parent_options, ret = -EINVAL; goto free_exit; } + bdrv_set_aio_context(backing_hd, bdrv_get_aio_context(bs)); /* Hook up the backing file link; drop our reference, bs owns the * backing_hd reference now */ -- 1.8.3.1