diff mbox

[14/19] block: insert event-tap to bdrv_aio_writev(), bdrv_aio_flush() and bdrv_flush().

Message ID 1296199312-26334-15-git-send-email-tamura.yoshiaki@lab.ntt.co.jp
State New
Headers show

Commit Message

Yoshiaki Tamura Jan. 28, 2011, 7:21 a.m. UTC 
event-tap function is called only when it is on, and requests were
sent from device emulators.

Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp>
---
 block.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

Comments

Kevin Wolf Jan. 28, 2011, 9:10 a.m. UTC | #1 
Am 28.01.2011 08:21, schrieb Yoshiaki Tamura:
> event-tap function is called only when it is on, and requests were
> sent from device emulators.
> 
> Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp>

Acked-by: Kevin Wolf <kwolf@redhat.com>
diff mbox

Patch

diff --git a/block.c b/block.c
index ff2795b..e4df9b6 100644
--- a/block.c
+++ b/block.c
@@ -28,6 +28,7 @@ 
 #include "block_int.h"
 #include "module.h"
 #include "qemu-objects.h"
+#include "event-tap.h"
 
 #ifdef CONFIG_BSD
 #include <sys/types.h>
@@ -1476,6 +1477,10 @@  int bdrv_flush(BlockDriverState *bs)
     }
 
     if (bs->drv && bs->drv->bdrv_flush) {
+        if (*bs->device_name && event_tap_is_on()) {
+            event_tap_bdrv_flush();
+        }
+
         return bs->drv->bdrv_flush(bs);
     }
 
@@ -2111,6 +2116,11 @@  BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,
     if (bdrv_check_request(bs, sector_num, nb_sectors))
         return NULL;
 
+    if (*bs->device_name && event_tap_is_on()) {
+        return event_tap_bdrv_aio_writev(bs, sector_num, qiov, nb_sectors,
+                                         cb, opaque);
+    }
+
     if (bs->dirty_bitmap) {
         blk_cb_data = blk_dirty_cb_alloc(bs, sector_num, nb_sectors, cb,
                                          opaque);
@@ -2374,6 +2384,11 @@  BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs,
 
     if (!drv)
         return NULL;
+
+    if (*bs->device_name && event_tap_is_on()) {
+        return event_tap_bdrv_aio_flush(bs, cb, opaque);
+    }
+
     return drv->bdrv_aio_flush(bs, cb, opaque);
 }