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From 0e36c36c95c2616d020321782d4c8164c561eaec Mon Sep 17 00:00:00 2001
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Message-Id: <0e36c36c95c2616d020321782d4c8164c561eaec.1389014116.git.minovotn@redhat.com>
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In-Reply-To: <c8cc35838d42aa286242772d97e3a9be7bb786ba.1389014116.git.minovotn@redhat.com>
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References: <c8cc35838d42aa286242772d97e3a9be7bb786ba.1389014116.git.minovotn@redhat.com>
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Mon, 9 Dec 2013 14:09:14 +0100
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Subject: [PATCH 26/50] block: add bdrv_aio_write_zeroes
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RH-Author: Paolo Bonzini <pbonzini@redhat.com>
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Message-id: <1386598178-11845-29-git-send-email-pbonzini@redhat.com>
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Patchwork-id: 56065
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O-Subject: [RHEL 7.0 qemu-kvm PATCH 28/52] block: add bdrv_aio_write_zeroes
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Bugzilla: 1007815
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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This will be used by the SCSI layer.
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Peter Lieven <pl@kamp.de>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit d5ef94d43da8c57a2d597efbdec3d9a54d97fdf7)
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---
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block.c | 11 +++++++++++
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include/block/block.h | 3 +++
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trace-events | 1 +
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3 files changed, 15 insertions(+)
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Signed-off-by: Michal Novotny <minovotn@redhat.com>
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---
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block.c | 11 +++++++++++
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include/block/block.h | 3 +++
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trace-events | 1 +
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3 files changed, 15 insertions(+)
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diff --git a/block.c b/block.c
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index c6cad55..fc15370 100644
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--- a/block.c
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+++ b/block.c
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@@ -3690,6 +3690,17 @@ BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,
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cb, opaque, true);
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}
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+BlockDriverAIOCB *bdrv_aio_write_zeroes(BlockDriverState *bs,
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+ int64_t sector_num, int nb_sectors, BdrvRequestFlags flags,
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+ BlockDriverCompletionFunc *cb, void *opaque)
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+{
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+ trace_bdrv_aio_write_zeroes(bs, sector_num, nb_sectors, flags, opaque);
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+
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+ return bdrv_co_aio_rw_vector(bs, sector_num, NULL, nb_sectors,
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+ BDRV_REQ_ZERO_WRITE | flags,
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+ cb, opaque, true);
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+}
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+
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typedef struct MultiwriteCB {
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int error;
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diff --git a/include/block/block.h b/include/block/block.h
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index 6042e10..bcf71e2 100644
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--- a/include/block/block.h
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+++ b/include/block/block.h
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@@ -218,6 +218,9 @@ int bdrv_write(BlockDriverState *bs, int64_t sector_num,
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const uint8_t *buf, int nb_sectors);
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int bdrv_write_zeroes(BlockDriverState *bs, int64_t sector_num,
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int nb_sectors, BdrvRequestFlags flags);
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+BlockDriverAIOCB *bdrv_aio_write_zeroes(BlockDriverState *bs, int64_t sector_num,
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+ int nb_sectors, BdrvRequestFlags flags,
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+ BlockDriverCompletionFunc *cb, void *opaque);
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int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags);
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int bdrv_writev(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov);
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int bdrv_pread(BlockDriverState *bs, int64_t offset,
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diff --git a/trace-events b/trace-events
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index fa5a65c..40d4312 100644
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--- a/trace-events
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+++ b/trace-events
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@@ -60,6 +60,7 @@ bdrv_aio_discard(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs
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bdrv_aio_flush(void *bs, void *opaque) "bs %p opaque %p"
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bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
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bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
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+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"
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bdrv_lock_medium(void *bs, bool locked) "bs %p locked %d"
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bdrv_co_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
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bdrv_co_copy_on_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
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--
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1.7.11.7
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