Polling can cause external requests to be picked up even if the AioContext
is not looking at external file descriptors.  Disable all polling between
aio_disable_external() and aio_enable_external(), since aio_set_fd_poll()
does not distinguish external handlers from those that in principle could
run.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 util/aio-posix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util/aio-posix.c b/util/aio-posix.c
index a8be940f760d..0d22e3d6d37c 100644
--- a/util/aio-posix.c
+++ b/util/aio-posix.c
@@ -29,7 +29,7 @@
 
 bool aio_poll_disabled(AioContext *ctx)
 {
-    return qatomic_read(&ctx->poll_disable_cnt);
+    return qatomic_read(&ctx->poll_disable_cnt) || qatomic_read(&ctx->external_disable_cnt);
 }
 
 void aio_add_ready_handler(AioHandlerList *ready_list,
-- 
2.39.2