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Re: [Qemu-devel] [PATCH 0/5] Auto-fragment large transactions at the blo
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH 0/5] Auto-fragment large transactions at the block layer |
Date: |
Tue, 5 Jul 2016 20:04:49 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
On 06/21/2016 11:54 PM, Fam Zheng wrote:
> On Mon, 06/20 17:39, Eric Blake wrote:
>> We have max_transfer documented in BlockLimits, but while we
>> honor it during pwrite_zeroes, we were blindly ignoring it
>> during pwritev and preadv, leading to multiple drivers having
>> to implement fragmentation themselves. This series moves
>> fragmentation to the block layer, then fixes the NBD driver to
>> use it; if you like this but it needs a v2, you can request that
>> I further do other drivers (I know at least iscsi and qcow2 do
>> some self-fragmenting and/or error reporting that can be
>> simplified by deferring fragmentation to the block layer).
>>
>> Prequisite: Kevin's block branch, plus my work on byte-based
>> block limits (v2 at the moment):
>> https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg04006.html
>>
>> Also available as a tag at:
>> git fetch git://repo.or.cz/qemu/ericb.git nbd-fragment-v1
>
> Patches 1-6:
>
> Reviewed-by: Fam Zheng <address@hidden>
ping - series still applies to latest master without tweaks
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- Re: [Qemu-devel] [PATCH 0/5] Auto-fragment large transactions at the block layer,
Eric Blake <=