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

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Submitter Yoshiaki Tamura
Date Jan. 13, 2011, 5:15 p.m.
Message ID <1294938941-9532-15-git-send-email-tamura.yoshiaki@lab.ntt.co.jp>
Download mbox | patch
Permalink /patch/78790/
State New
Headers show

Comments

Yoshiaki Tamura - Jan. 13, 2011, 5:15 p.m.
event-tap function is called only when it is on, and requests sent
from device emulators.

Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp>
---
 block.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

Patch

diff --git a/block.c b/block.c
index ff2795b..85bd8b8 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>
@@ -2111,6 +2112,11 @@  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 +2380,11 @@  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);
 }