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[Qemu-block] [PATCH] mirror: hold aio_context before bdrv_drain
From: |
Bin Wu |
Subject: |
[Qemu-block] [PATCH] mirror: hold aio_context before bdrv_drain |
Date: |
Wed, 1 Apr 2015 12:42:21 +0800 |
From: Bin Wu <address@hidden>
Signed-off-by: Bin Wu <address@hidden>
---
block/mirror.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/block/mirror.c b/block/mirror.c
index 4056164..08372df 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -530,7 +530,9 @@ static void coroutine_fn mirror_run(void *opaque)
* mirror_populate runs.
*/
trace_mirror_before_drain(s, cnt);
+ aio_context_acquire(bdrv_get_aio_context(bs));
bdrv_drain(bs);
+ aio_context_release(bdrv_get_aio_context(bs));
cnt = bdrv_get_dirty_count(bs, s->dirty_bitmap);
}
--
1.7.12.4
- [Qemu-block] [PATCH] mirror: hold aio_context before bdrv_drain,
Bin Wu <=