From a9fc4408e3511a073583a18b98a26765ff1e21d7 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Thu, 14 Jun 2012 16:55:01 +0200 Subject: [PATCH] block: copy over job and dirty bitmap fields in bdrv_append While these should not be in use at the time a transaction is started, a command in the prepare phase of a transaction might have added them, so they need to be brought over. Signed-off-by: Paolo Bonzini Signed-off-by: Kevin Wolf --- block.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/block.c b/block.c index 0acdcac158..702821dbab 100644 --- a/block.c +++ b/block.c @@ -1027,6 +1027,16 @@ void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top) tmp.iostatus_enabled = bs_top->iostatus_enabled; tmp.iostatus = bs_top->iostatus; + /* dirty bitmap */ + tmp.dirty_count = bs_top->dirty_count; + tmp.dirty_bitmap = bs_top->dirty_bitmap; + assert(bs_new->dirty_bitmap == NULL); + + /* job */ + tmp.in_use = bs_top->in_use; + tmp.job = bs_top->job; + assert(bs_new->job == NULL); + /* keep the same entry in bdrv_states */ pstrcpy(tmp.device_name, sizeof(tmp.device_name), bs_top->device_name); tmp.list = bs_top->list; @@ -1051,6 +1061,11 @@ void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top) /* clear the copied fields in the new backing file */ bdrv_detach_dev(bs_new, bs_new->dev); + bs_new->job = NULL; + bs_new->in_use = 0; + bs_new->dirty_bitmap = NULL; + bs_new->dirty_count = 0; + qemu_co_queue_init(&bs_new->throttled_reqs); memset(&bs_new->io_base, 0, sizeof(bs_new->io_base)); memset(&bs_new->io_limits, 0, sizeof(bs_new->io_limits)); -- 2.11.4.GIT