diff options
| -rw-r--r-- | aio.c | 8 | ||||
| -rw-r--r-- | qemu-aio.h | 7 |
2 files changed, 10 insertions, 5 deletions
@@ -103,11 +103,15 @@ void qemu_aio_flush(void) do { ret = 0; + /* + * If there are pending emulated aio start them now so flush + * will be able to return 1. + */ + qemu_aio_wait(); + LIST_FOREACH(node, &aio_handlers, node) { ret |= node->io_flush(node->opaque); } - - qemu_aio_wait(); } while (ret > 0); } diff --git a/qemu-aio.h b/qemu-aio.h index 79678293ef..f262344af3 100644 --- a/qemu-aio.h +++ b/qemu-aio.h @@ -24,9 +24,10 @@ typedef int (AioFlushHandler)(void *opaque); * outstanding AIO operations have been completed or cancelled. */ void qemu_aio_flush(void); -/* Wait for a single AIO completion to occur. This function will until a - * single AIO opeartion has completed. It is intended to be used as a looping - * primative when simulating synchronous IO based on asynchronous IO. */ +/* Wait for a single AIO completion to occur. This function will wait + * until a single AIO event has completed and it will ensure something + * has moved before returning. This can issue new pending aio as + * result of executing I/O completion or bh callbacks. */ void qemu_aio_wait(void); /* Register a file descriptor and associated callbacks. Behaves very similarly |