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[Qemu-devel] [PATCH v3 04/19] block: add bdrv_aio_write_zeroes
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH v3 04/19] block: add bdrv_aio_write_zeroes |
Date: |
Fri, 22 Nov 2013 13:39:46 +0100 |
This will be used by the SCSI layer.
Signed-off-by: Paolo Bonzini <address@hidden>
---
block.c | 11 +++++++++++
include/block/block.h | 3 +++
trace-events | 1 +
3 files changed, 15 insertions(+)
diff --git a/block.c b/block.c
index cb07e57..f9674d9 100644
--- a/block.c
+++ b/block.c
@@ -3670,6 +3670,17 @@ 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 f159ac9..d318d6f 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 %#x 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"
--
1.8.4.2
- [Qemu-devel] [PATCH v3 00/19] block & scsi: write_zeroes support through the whole stack, Paolo Bonzini, 2013/11/22
- [Qemu-devel] [PATCH v3 01/19] block: generalize BlockLimits handling to cover bdrv_aio_discard too, Paolo Bonzini, 2013/11/22
- [Qemu-devel] [PATCH v3 02/19] block: add flags to BlockRequest, Paolo Bonzini, 2013/11/22
- [Qemu-devel] [PATCH v3 03/19] block: add flags argument to bdrv_co_write_zeroes tracepoint, Paolo Bonzini, 2013/11/22
- [Qemu-devel] [PATCH v3 04/19] block: add bdrv_aio_write_zeroes,
Paolo Bonzini <=
- [Qemu-devel] [PATCH v3 05/19] block: handle ENOTSUP from discard in generic code, Paolo Bonzini, 2013/11/22
- [Qemu-devel] [PATCH v3 07/19] vpc, vhdx: add get_info, Paolo Bonzini, 2013/11/22
- [Qemu-devel] [PATCH v3 09/19] block drivers: expose requirement for write same alignment from formats, Paolo Bonzini, 2013/11/22
- [Qemu-devel] [PATCH v3 08/19] block drivers: add discard/write_zeroes properties to bdrv_get_info implementation, Paolo Bonzini, 2013/11/22