[PATCH] block/file-posix.c: No need to sync data when aio + dio is enabled

[zhoushlu]

From: zhoushl <zhoushl@inspur.com>

Signed-off-by: zhoushl <zhoushl@inspur.com>
---
 block/file-posix.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/block/file-posix.c b/block/file-posix.c
index 5760cf22d1..fe9568947c 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -1399,6 +1399,12 @@ static int handle_aiocb_flush(void *opaque)
         return -s->page_cache_inconsistent;
     }
 
+#ifdef CONFIG_LINUX_AIO
+    if (s->use_linux_aio && (s->open_flags & O_DIRECT)) {
+        return 0;
+    }
+#endif
+
     ret = qemu_fdatasync(aiocb->aio_fildes);
     if (ret == -1) {
         trace_file_flush_fdatasync_failed(errno);
-- 
2.27.0