From: Max Reitz <mreitz@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>, qemu-devel@nongnu.org
Cc: pbonzini@redhat.com, pl@kamp.de, stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH v2 17/24] block: Generalise and optimise COR serialisation
Date: Sat, 11 Jan 2014 23:28:31 +0100 [thread overview]
Message-ID: <52D1C58F.9040404@redhat.com> (raw)
In-Reply-To: <1386940979-3824-18-git-send-email-kwolf@redhat.com>
On 13.12.2013 14:22, Kevin Wolf wrote:
> Change the API so that specific requests can be marked serialising. Only
> these requests are checked for overlaps then.
>
> This means that during a Copy on Read operation, not all requests
> overlapping other requests are serialised any more, but only those that
> actually overlap with the specific COR request.
>
> Also remove COR from function and variable names because this
> functionality can be useful in other contexts.
>
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> ---
> block.c | 48 ++++++++++++++++++++++++++++-------------------
> include/block/block_int.h | 5 +++--
> 2 files changed, 32 insertions(+), 21 deletions(-)
Reviewed-by: Max Reitz <mreitz@redhat.com>
next prev parent reply other threads:[~2014-01-11 22:27 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-13 13:22 [Qemu-devel] [PATCH v2 00/24] block: Support for 512b-on-4k emulatio Kevin Wolf
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 01/24] block: Move initialisation of BlockLimits to bdrv_refresh_limits() Kevin Wolf
2014-01-11 22:24 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 02/24] block: Inherit opt_transfer_length Kevin Wolf
2014-01-11 22:24 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 03/24] block: Update BlockLimits when they might have changed Kevin Wolf
2014-01-11 22:24 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 04/24] qemu_memalign: Allow small alignments Kevin Wolf
2014-01-11 22:25 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 05/24] block: Detect unaligned length in bdrv_qiov_is_aligned() Kevin Wolf
2014-01-11 22:25 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 06/24] block: Don't use guest sector size for qemu_blockalign() Kevin Wolf
2014-01-11 22:25 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 07/24] block: rename buffer_alignment to guest_block_size Kevin Wolf
2014-01-11 22:26 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 08/24] raw: Probe required direct I/O alignment Kevin Wolf
2013-12-24 3:39 ` Wenchao Xia
2014-01-11 22:26 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 09/24] block: Introduce bdrv_aligned_preadv() Kevin Wolf
2013-12-24 7:23 ` Wenchao Xia
2014-01-11 22:27 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 10/24] block: Introduce bdrv_co_do_preadv() Kevin Wolf
2013-12-26 4:08 ` Wenchao Xia
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 11/24] block: Introduce bdrv_aligned_pwritev() Kevin Wolf
2014-01-11 22:27 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 12/24] block: write: Handle COR dependency after I/O throttling Kevin Wolf
2014-01-11 22:27 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 13/24] block: Introduce bdrv_co_do_pwritev() Kevin Wolf
2014-01-10 18:11 ` Max Reitz
2014-01-16 12:25 ` Kevin Wolf
2014-01-17 1:38 ` Fam Zheng
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 14/24] block: Switch BdrvTrackedRequest to byte granularity Kevin Wolf
2014-01-10 18:34 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 15/24] block: Allow waiting for overlapping requests between begin/end Kevin Wolf
2014-01-11 22:28 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 16/24] block: Make zero-after-EOF work with larger alignment Kevin Wolf
2014-01-10 19:07 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 17/24] block: Generalise and optimise COR serialisation Kevin Wolf
2014-01-11 22:28 ` Max Reitz [this message]
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 18/24] block: Make overlap range for serialisation dynamic Kevin Wolf
2014-01-11 22:28 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 19/24] block: Allow wait_serialising_requests() at any point Kevin Wolf
2013-12-27 4:17 ` Wenchao Xia
2014-01-13 11:29 ` Kevin Wolf
2014-01-14 3:13 ` Wenchao Xia
2014-01-11 22:29 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 20/24] block: Align requests in bdrv_co_do_pwritev() Kevin Wolf
2014-01-11 22:29 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 21/24] block: Change coroutine wrapper to byte granularity Kevin Wolf
2014-01-11 22:29 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 22/24] block: Make bdrv_pread() a bdrv_prwv_co() wrapper Kevin Wolf
2014-01-11 22:29 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 23/24] block: Make bdrv_pwrite() " Kevin Wolf
2014-01-11 22:22 ` Max Reitz
2013-12-13 13:22 ` [Qemu-devel] [PATCH v2 24/24] iscsi: Set bs->request_alignment Kevin Wolf
2014-01-11 22:30 ` Max Reitz
2013-12-27 4:27 ` [Qemu-devel] [PATCH v2 00/24] block: Support for 512b-on-4k emulatio Wenchao Xia
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