From: Eric Blake <eblake@redhat.com>
To: Fam Zheng <famz@redhat.com>
Cc: qemu-devel@nongnu.org, kwolf@redhat.com, qemu-block@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 0/5] Auto-fragment large transactions at the block layer
Date: Tue, 5 Jul 2016 20:04:49 -0600 [thread overview]
Message-ID: <577C6741.4060804@redhat.com> (raw)
In-Reply-To: <20160622055441.GB22636@ad.usersys.redhat.com>
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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 <famz@redhat.com>
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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next prev parent reply other threads:[~2016-07-06 2:05 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-20 23:39 [Qemu-devel] [PATCH 0/5] Auto-fragment large transactions at the block layer Eric Blake
2016-06-20 23:39 ` [Qemu-devel] [PATCH 1/5] block: Fragment reads to max transfer length Eric Blake
2016-07-08 10:56 ` Kevin Wolf
2016-07-08 14:31 ` Eric Blake
2016-06-20 23:39 ` [Qemu-devel] [PATCH 2/5] block: Fragment writes " Eric Blake
2016-06-20 23:39 ` [Qemu-devel] [PATCH 3/5] raw_bsd: Don't advertise flags not supported by protocol layer Eric Blake
2016-07-08 11:05 ` Kevin Wolf
2016-07-08 14:32 ` Eric Blake
2016-06-20 23:39 ` [Qemu-devel] [PATCH 4/5] nbd: Rely on block layer to break up large requests Eric Blake
2016-06-20 23:39 ` [Qemu-devel] [PATCH 5/5] nbd: Drop unused offset parameter Eric Blake
2016-07-08 11:11 ` Kevin Wolf
2016-06-21 3:19 ` [Qemu-devel] [PATCH 6/5] iscsi: Rely on block layer to break up large requests Eric Blake
2016-06-21 4:17 ` [Qemu-devel] [PATCH 0/5] Auto-fragment large transactions at the block layer Eric Blake
2016-06-21 10:23 ` Stefan Hajnoczi
2016-06-21 10:43 ` Kevin Wolf
2016-06-22 11:41 ` Stefan Hajnoczi
2016-06-21 22:05 ` Eric Blake
2016-06-22 11:41 ` Stefan Hajnoczi
2016-06-22 5:54 ` Fam Zheng
2016-07-06 2:04 ` Eric Blake [this message]
2016-07-08 11:15 ` Kevin Wolf
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