diff mbox

[v2,04/20] block: add bdrv_aio_write_zeroes

Message ID 1384880863-10434-5-git-send-email-pbonzini@redhat.com
State New
Headers show

Commit Message

Paolo Bonzini Nov. 19, 2013, 5:07 p.m. UTC 
This will be used by the SCSI layer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 block.c               | 11 +++++++++++
 include/block/block.h |  3 +++
 trace-events          |  1 +
 3 files changed, 15 insertions(+)

Comments

Stefan Hajnoczi Nov. 20, 2013, 10:02 a.m. UTC | #1 
On Tue, Nov 19, 2013 at 06:07:27PM +0100, Paolo Bonzini wrote:
> diff --git a/trace-events b/trace-events
> index 6175b61..a18ea59 100644
> --- a/trace-events
> +++ b/trace-events
> @@ -60,6 +60,7 @@ bdrv_aio_discard(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs
>  bdrv_aio_flush(void *bs, void *opaque) "bs %p opaque %p"
>  bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
>  bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
> +bdrv_aio_write_zeroes(void *bs, int64_t sector_num, int nb_sectors, int flags, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d flags %d opaque %p"

Please use %#x for flags
diff mbox

Patch

diff --git a/block.c b/block.c
index 0c3f410..f5428f4 100644
--- a/block.c
+++ b/block.c
@@ -3663,6 +3663,17 @@  BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,
                                  cb, opaque, true);
 }
 
+BlockDriverAIOCB *bdrv_aio_write_zeroes(BlockDriverState *bs,
+        int64_t sector_num, int nb_sectors, BdrvRequestFlags flags,
+        BlockDriverCompletionFunc *cb, void *opaque)
+{
+    trace_bdrv_aio_write_zeroes(bs, sector_num, nb_sectors, flags, opaque);
+
+    return bdrv_co_aio_rw_vector(bs, sector_num, NULL, nb_sectors,
+                                 BDRV_REQ_ZERO_WRITE | flags,
+                                 cb, opaque, true);
+}
+
 
 typedef struct MultiwriteCB {
     int error;
diff --git a/include/block/block.h b/include/block/block.h
index 703d875..4967ed2 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -216,6 +216,9 @@  int bdrv_write(BlockDriverState *bs, int64_t sector_num,
                const uint8_t *buf, int nb_sectors);
 int bdrv_write_zeroes(BlockDriverState *bs, int64_t sector_num,
                int nb_sectors, BdrvRequestFlags flags);
+BlockDriverAIOCB *bdrv_aio_write_zeroes(BlockDriverState *bs, int64_t sector_num,
+                                        int nb_sectors, BdrvRequestFlags flags,
+                                        BlockDriverCompletionFunc *cb, void *opaque);
 int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags);
 int bdrv_writev(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov);
 int bdrv_pread(BlockDriverState *bs, int64_t offset,
diff --git a/trace-events b/trace-events
index 6175b61..a18ea59 100644
--- a/trace-events
+++ b/trace-events
@@ -60,6 +60,7 @@  bdrv_aio_discard(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs
 bdrv_aio_flush(void *bs, void *opaque) "bs %p opaque %p"
 bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
 bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
+bdrv_aio_write_zeroes(void *bs, int64_t sector_num, int nb_sectors, int flags, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d flags %d opaque %p"
 bdrv_lock_medium(void *bs, bool locked) "bs %p locked %d"
 bdrv_co_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
 bdrv_co_copy_on_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"