[Qemu-devel] [PATCH 5/6] qcow2: Move BLKDBG_EVENT out of the lock

[Kevin Wolf <kwolf@redhat.com>]

We want to use these events to suspend requests for testing concurrent
AIO requests. Suspending requests while they are holding the CoMutex is
rather boring for this purpose.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/qcow2.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/block/qcow2.c b/block/qcow2.c
index c1ff31f..0a08ec7 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -835,8 +835,8 @@ static coroutine_fn int qcow2_co_writev(BlockDriverState *bs,
                 cur_nr_sectors * 512);
         }
 
-        BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
         qemu_co_mutex_unlock(&s->lock);
+        BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
         trace_qcow2_writev_data(qemu_coroutine_self(),
                                 (cluster_offset >> 9) + index_in_cluster);
         ret = bdrv_co_writev(bs->file,
-- 
1.7.6.5