diff mbox

[RFC,v4,1/3] close all the block drivers before the qemu process exits

Message ID 1275014699-9431-2-git-send-email-morita.kazutaka@lab.ntt.co.jp
State New
Headers show

Commit Message

MORITA Kazutaka May 28, 2010, 2:44 a.m. UTC 
This patch calls the close handler of the block driver before the qemu
process exits.

This is necessary because the sheepdog block driver releases the lock
of VM images in the close handler.

Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
---
 block.c |    9 +++++++++
 block.h |    1 +
 vl.c    |    1 +
 3 files changed, 11 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/block.c b/block.c
index 24c63f6..da0dc47 100644
--- a/block.c
+++ b/block.c
@@ -646,6 +646,15 @@  void bdrv_close(BlockDriverState *bs)
     }
 }
 
+void bdrv_close_all(void)
+{
+    BlockDriverState *bs;
+
+    QTAILQ_FOREACH(bs, &bdrv_states, list) {
+        bdrv_close(bs);
+    }
+}
+
 void bdrv_delete(BlockDriverState *bs)
 {
     /* remove from list, if necessary */
diff --git a/block.h b/block.h
index 756670d..25744b1 100644
--- a/block.h
+++ b/block.h
@@ -123,6 +123,7 @@  BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs,
 /* Ensure contents are flushed to disk.  */
 void bdrv_flush(BlockDriverState *bs);
 void bdrv_flush_all(void);
+void bdrv_close_all(void);
 
 int bdrv_has_zero_init(BlockDriverState *bs);
 int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
diff --git a/vl.c b/vl.c
index 7121cd0..8ffe36f 100644
--- a/vl.c
+++ b/vl.c
@@ -1992,6 +1992,7 @@  static void main_loop(void)
             vm_stop(r);
         }
     }
+    bdrv_close_all();
     pause_all_vcpus();
 }