From bb2614e991d88166fccf4a26c7180ee39f39a48d Mon Sep 17 00:00:00 2001 From: Fam Zheng Date: Fri, 7 Apr 2017 14:54:10 +0800 Subject: [PATCH] block: Assert attached child node has right aio context Suggested-by: Kevin Wolf Signed-off-by: Fam Zheng Signed-off-by: Kevin Wolf --- block.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/block.c b/block.c index 927ba89eb7..b8a30115e1 100644 --- a/block.c +++ b/block.c @@ -1752,6 +1752,9 @@ static void bdrv_replace_child_noperm(BdrvChild *child, { BlockDriverState *old_bs = child->bs; + if (old_bs && new_bs) { + assert(bdrv_get_aio_context(old_bs) == bdrv_get_aio_context(new_bs)); + } if (old_bs) { if (old_bs->quiesce_counter && child->role->drained_end) { child->role->drained_end(child); @@ -1852,6 +1855,7 @@ BdrvChild *bdrv_attach_child(BlockDriverState *parent_bs, bdrv_get_cumulative_perm(parent_bs, &perm, &shared_perm); assert(parent_bs->drv); + assert(bdrv_get_aio_context(parent_bs) == bdrv_get_aio_context(child_bs)); parent_bs->drv->bdrv_child_perm(parent_bs, NULL, child_role, perm, shared_perm, &perm, &shared_perm);