From: Kevin Wolf <kwolf@redhat.com>
Date: Thu, 6 Dec 2012 13:32:59 +0000 (+0100)
Subject: qcow2: Move BLKDBG_EVENT out of the lock
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=67a7a0ebe5ef0f337d5f7e7e618b08c562a55da0;p=qemu.git

qcow2: Move BLKDBG_EVENT out of the lock

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>
---

diff --git a/block/qcow2.c b/block/qcow2.c
index c1ff31f482..0a08ec74c7 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,