From 2119882c7eb7e2c612b24fc0c8d86f5887d6f1c3 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 5 Jun 2017 14:39:03 +0200
Subject: block: introduce dirty_bitmap_mutex

It protects only the list of dirty bitmaps; in the next patch we will
also protect their content.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20170605123908.18777-15-pbonzini@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
---
 block.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'block.c')

diff --git a/block.c b/block.c
index a5cbd45..6943962 100644
--- a/block.c
+++ b/block.c
@@ -321,6 +321,7 @@ BlockDriverState *bdrv_new(void)
     }
     notifier_with_return_list_init(&bs->before_write_notifiers);
     qemu_co_mutex_init(&bs->reqs_lock);
+    qemu_mutex_init(&bs->dirty_bitmap_mutex);
     bs->refcnt = 1;
     bs->aio_context = qemu_get_aio_context();
 
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