[Qemu-devel] [PATCH v3 2/4] block/raw_bsd.c: support io plug and unplug for raw format image

[Ming Lei <ming.lei@canonical.com>]

This patch defines .bdrv_io_plug and .bdrv_io_unplug callbacks,
so that we can support to submit IO at batch for linux-aio.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
---
 block/raw_bsd.c |   14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/block/raw_bsd.c b/block/raw_bsd.c
index 492f58d..933822b 100644
--- a/block/raw_bsd.c
+++ b/block/raw_bsd.c
@@ -174,6 +174,16 @@ static int raw_probe(const uint8_t *buf, int buf_size, const char *filename)
     return 1;
 }
 
+static void raw_io_plug(BlockDriverState *bs)
+{
+    bdrv_io_plug(bs->file);
+}
+
+static void raw_io_unplug(BlockDriverState *bs)
+{
+    bdrv_io_unplug(bs->file);
+}
+
 static BlockDriver bdrv_raw = {
     .format_name          = "raw",
     .bdrv_probe           = &raw_probe,
@@ -198,7 +208,9 @@ static BlockDriver bdrv_raw = {
     .bdrv_ioctl           = &raw_ioctl,
     .bdrv_aio_ioctl       = &raw_aio_ioctl,
     .create_opts          = &raw_create_opts,
-    .bdrv_has_zero_init   = &raw_has_zero_init
+    .bdrv_has_zero_init   = &raw_has_zero_init,
+    .bdrv_io_plug         = &raw_io_plug,
+    .bdrv_io_unplug       = &raw_io_unplug
 };
 
 static void bdrv_raw_init(void)
-- 
1.7.9.5