On Wed, 12/20 11:33, Kevin Wolf wrote:
> Signed-off-by: Kevin Wolf <kw...@redhat.com>
> ---
> block/io.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/block/io.c b/block/io.c
> index cf780c3cb0..b94740b8ff 100644
> --- a/block/io.c
> +++ b/block/io.c
> @@ -330,6 +330,12 @@ void bdrv_drain_all_begin(void)
> BdrvNextIterator it;
> GSList *aio_ctxs = NULL, *ctx;
>
> + /* BDRV_POLL_WHILE() for a node can only be called from its own I/O
> thread
> + * or the main loop AioContext. We potentially use BDRV_POLL_WHILE() on
> + * nodes in several different AioContexts, so make sure we're in the main
> + * context. */
> + assert(qemu_get_current_aio_context() == qemu_get_aio_context());
> +
> block_job_pause_all();
>
> for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
> --
> 2.13.6
>
Reviewed-by: Fam Zheng <f...@redhat.com>
