From: Stefan Hajnoczi <stefanha@redhat.com>
To: Fam Zheng <famz@redhat.com>
Cc: qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
Ronnie Sahlberg <ronniesahlberg@gmail.com>,
qemu-block@nongnu.org, Peter Lieven <pl@kamp.de>,
Kevin Wolf <kwolf@redhat.com>, Max Reitz <mreitz@redhat.com>,
eblake@redhat.com
Subject: Re: [Qemu-devel] [PATCH v4 01/10] block: Introduce API for copy offloading
Date: Thu, 17 May 2018 10:44:06 +0100 [thread overview]
Message-ID: <20180517094406.GA18718@stefanha-x1.localdomain> (raw)
In-Reply-To: <20180511120823.7892-2-famz@redhat.com>
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On Fri, May 11, 2018 at 08:08:14PM +0800, Fam Zheng wrote:
> Introduce the bdrv_co_copy_range() API for copy offloading. Block
> drivers implementing this API support efficient copy operations that
> avoid reading each block from the source device and writing it to the
> destination devices. Examples of copy offload primitives are SCSI
> EXTENDED COPY and Linux copy_file_range(2).
>
> Signed-off-by: Fam Zheng <famz@redhat.com>
> ---
> block/io.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++
> include/block/block.h | 32 ++++++++++++++++
> include/block/block_int.h | 38 +++++++++++++++++++
> 3 files changed, 166 insertions(+)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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next prev parent reply other threads:[~2018-05-17 9:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-11 12:08 [Qemu-devel] [PATCH v4 00/10] qemu-img convert with copy offloading Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 01/10] block: Introduce API for " Fam Zheng
2018-05-17 9:44 ` Stefan Hajnoczi [this message]
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 02/10] raw: Check byte range uniformly Fam Zheng
2018-05-11 13:59 ` Eric Blake
2018-05-14 1:57 ` Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 03/10] raw: Implement copy offloading Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 04/10] qcow2: " Fam Zheng
2018-05-17 10:01 ` Stefan Hajnoczi
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 05/10] file-posix: Implement bdrv_co_copy_range Fam Zheng
2018-05-17 10:02 ` Stefan Hajnoczi
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 06/10] iscsi: Query and save device designator when opening Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 07/10] iscsi: Create and use iscsi_co_wait_for_task Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 08/10] iscsi: Implement copy offloading Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 09/10] block-backend: Add blk_co_copy_range Fam Zheng
2018-05-11 12:08 ` [Qemu-devel] [PATCH v4 10/10] qemu-img: Convert with copy offloading Fam Zheng
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