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>