From: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Stefan Hajnoczi <stefanha@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx>
---
block.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/block.c b/block.c
index 1fbf4dd..5baf340 100644
--- a/block.c
+++ b/block.c
@@ -1477,6 +1477,12 @@ static int bdrv_rw_co(BlockDriverState *bs, int64_t sector_num, uint8_t *buf,
qemu_iovec_init_external(&qiov, &iov, 1);
+ if (bs->io_limits_enabled) {
+ fprintf(stderr, "Disabling I/O throttling on '%s' due "
+ "to synchronous I/O.\n", bdrv_get_device_name(bs));
+ bdrv_io_limits_disable(bs);
+ }
+
if (qemu_in_coroutine()) {
/* Fast-path if already in coroutine context */
bdrv_rw_co_entry(&rwco);
--
1.7.6
--
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