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Re: [Qemu-devel] [PATCH 06/27] block/parallels: provide _co_readv routin
From: |
Roman Kagan |
Subject: |
Re: [Qemu-devel] [PATCH 06/27] block/parallels: provide _co_readv routine for parallels format driver |
Date: |
Tue, 28 Apr 2015 12:26:21 +0300 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Tue, Apr 28, 2015 at 10:46:39AM +0300, Denis V. Lunev wrote:
> Main approach is taken from qcow2_co_readv.
>
> The patch drops coroutine lock for the duration of IO operation and
> peforms normal scatter-gather IO using standard QEMU backend.
>
> The patch also adds comment about locking considerations in the driver.
>
> Signed-off-by: Denis V. Lunev <address@hidden>
> CC: Roman Kagan <address@hidden>
> CC: Kevin Wolf <address@hidden>
> CC: Stefan Hajnoczi <address@hidden>
> ---
> block/parallels.c | 54 +++++++++++++++++++++++++++++++++---------------------
> 1 file changed, 33 insertions(+), 21 deletions(-)
Reviewed-by: Roman Kagan <address@hidden>
- [Qemu-devel] [PATCH v4 0/27] write/create for Parallels images with reasonable performance, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 05/27] block/parallels: add get_block_status, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 03/27] block/parallels: switch to bdrv_read, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 02/27] block/parallels: rename parallels_header to ParallelsHeader, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 06/27] block/parallels: provide _co_readv routine for parallels format driver, Denis V. Lunev, 2015/04/28
- Re: [Qemu-devel] [PATCH 06/27] block/parallels: provide _co_readv routine for parallels format driver,
Roman Kagan <=
- [Qemu-devel] [PATCH 07/27] block/parallels: replace magic constants 4, 64 with proper sizeofs, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 08/27] block/parallels: mark parallels format driver as zero inited, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 01/27] iotests, parallels: quote TEST_IMG in 076 test to be path-safe, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 09/27] block/parallels: _co_writev callback for Parallels format, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 04/27] block/parallels: read up to cluster end in one go, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 11/27] block/parallels: support parallels image creation, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 13/27] parallels: change copyright information in the image header, Denis V. Lunev, 2015/04/28
- [Qemu-devel] [PATCH 12/27] iotests, parallels: test for newly created parallels image via qemu-img, Denis V. Lunev, 2015/04/28