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From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 00/16] AioContext fine-grained locking, part 1 of 3, including bdrv_drain rewrite
Date: Wed, 16 Mar 2016 23:29:02 +0100	[thread overview]
Message-ID: <56E9DE2E.5060607@redhat.com> (raw)
In-Reply-To: <20160316181819.GD2012@stefanha-x1.localdomain>



On 16/03/2016 19:18, Stefan Hajnoczi wrote:
> Looks good overall.  I'm a little nervous about merging it for QEMU 2.6
> but the block job, NBD, and data plane tests should give it a good
> workout.

Apart from QEMU nearing hard freeze, I totally understand not wanting to
commit to merging part 1 of n where n will probably be a dozen or so.
I'm open to experimenting with different models for handling long-term
contributions.

For example, each part will probably have an uncontroversial and
generally useful prefix---for example patches 1-4 in this case, or the
change to a single linux-aio context per iothread.  You could merge
those only, and for the rest, I will maintain myself a branch with R-b
from maintainers.  Master will be periodically merged into it, but not
too frequently---it could be only after each part is accepted, or when
there is some important bugfix to catch.  Once the whole multiqueue
thing gets somewhere I would send you a pull request with the entire
feature, which would consist of say 200 patches all with a Reviewed-by
already.

This is just a possibility; if you have any other idea, I'd be happy to
follow it.

Paolo

  reply	other threads:[~2016-03-16 22:29 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-16 17:56 [Qemu-devel] [PATCH 00/16] AioContext fine-grained locking, part 1 of 3, including bdrv_drain rewrite Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 01/16] block: make bdrv_start_throttled_reqs return void Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 02/16] block: move restarting of throttled reqs to block/throttle-groups.c Paolo Bonzini
2016-03-09  1:26   ` Fam Zheng
2016-03-09  7:37     ` Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 03/16] block: introduce bdrv_no_throttling_begin/end Paolo Bonzini
2016-03-09  1:45   ` Fam Zheng
2016-03-09  7:40     ` Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 04/16] block: plug whole tree at once, introduce bdrv_io_unplugged_begin/end Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 05/16] mirror: use bottom half to re-enter coroutine Paolo Bonzini
2016-03-09  3:19   ` Fam Zheng
2016-03-09  7:41     ` Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 06/16] block: add BDS field to count in-flight requests Paolo Bonzini
2016-03-09  3:35   ` Fam Zheng
2016-03-09  7:43     ` Paolo Bonzini
2016-03-09  8:00       ` Fam Zheng
2016-03-09  8:22         ` Paolo Bonzini
2016-03-09  8:33           ` Fam Zheng
2016-02-16 17:56 ` [Qemu-devel] [PATCH 07/16] block: change drain to look only at one child at a time Paolo Bonzini
2016-03-09  3:41   ` Fam Zheng
2016-03-09  7:49     ` Paolo Bonzini
2016-03-16 16:39   ` Stefan Hajnoczi
2016-03-16 17:41     ` Paolo Bonzini
2016-03-17  0:57       ` Fam Zheng
2016-02-16 17:56 ` [Qemu-devel] [PATCH 08/16] blockjob: introduce .drain callback for jobs Paolo Bonzini
2016-03-16 17:56   ` Stefan Hajnoczi
2016-02-16 17:56 ` [Qemu-devel] [PATCH 09/16] block: wait for all pending I/O when doing synchronous requests Paolo Bonzini
2016-03-09  8:13   ` Fam Zheng
2016-03-09  8:23     ` Paolo Bonzini
2016-03-16 18:04   ` Stefan Hajnoczi
2016-02-16 17:56 ` [Qemu-devel] [PATCH 10/16] nfs: replace aio_poll with bdrv_drain Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 11/16] sheepdog: disable dataplane Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 12/16] aio: introduce aio_context_in_iothread Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 13/16] block: only call aio_poll from iothread Paolo Bonzini
2016-03-09  8:30   ` Fam Zheng
2016-03-09  8:55     ` Paolo Bonzini
2016-03-09  9:10     ` Paolo Bonzini
2016-03-09  9:27       ` Fam Zheng
2016-02-16 17:56 ` [Qemu-devel] [PATCH 14/16] iothread: release AioContext around aio_poll Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 15/16] qemu-thread: introduce QemuRecMutex Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 16/16] aio: convert from RFifoLock to QemuRecMutex Paolo Bonzini
2016-03-08 17:51 ` [Qemu-devel] [PATCH 00/16] AioContext fine-grained locking, part 1 of 3, including bdrv_drain rewrite Paolo Bonzini
2016-03-09  8:46 ` Fam Zheng
2016-03-16 18:18 ` Stefan Hajnoczi
2016-03-16 22:29   ` Paolo Bonzini [this message]
2016-03-17 13:44     ` [Qemu-devel] [Qemu-block] " Stefan Hajnoczi
2016-03-17 13:48       ` Paolo Bonzini
2016-03-18 15:49         ` Stefan Hajnoczi

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