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From: Richard Henderson <rth@twiddle.net>
To: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org
Cc: alex.bennee@linaro.org, sergey.fedorov@linaro.org
Subject: Re: [Qemu-devel] [PATCH v7 00/16] cpu-exec: Safe work in quiescent state
Date: Wed, 14 Sep 2016 10:16:23 -0700	[thread overview]
Message-ID: <e77e9c72-a5b6-0d70-425b-51980312d074@twiddle.net> (raw)
In-Reply-To: <1473678761-8885-1-git-send-email-pbonzini@redhat.com>

On 09/12/2016 04:12 AM, Paolo Bonzini wrote:
> In addition to fixing some of the issues found by Alex, safe work items
> need not run anymore with a mutex taken.  Of course, cpu_exec_start/end
> and start_exclusive/end_exclusive are essentially the read and write
> side of a specialized rwlock, so there is still a lock in disguise looming
> to cause deadlocks; however, it does removes worries about recursive
> locking from CPU list manipulations.
> 
> The new patches are 8, 12 and 13.  Patch 12 of v6 has been split
> across patch 10 and patch 16.
> 
> Paolo
> 
> v6->v7: Do not separate qemu_work_item and SafeWorkItem
>         More cleanups/optimizations of exclusive section logic

What tree is this based on?
The patch set doesn't apply cleanly to master or v2.7.0.


r~

  parent reply	other threads:[~2016-09-14 17:17 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-12 11:12 [Qemu-devel] [PATCH v7 00/16] cpu-exec: Safe work in quiescent state Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 01/16] cpus: pass CPUState to run_on_cpu helpers Paolo Bonzini
2016-09-15 15:30   ` Alex Bennée
2016-09-12 11:12 ` [Qemu-devel] [PATCH 02/16] cpus: Move common code out of {async_, }run_on_cpu() Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 03/16] cpus: Rename flush_queued_work() Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 04/16] linux-user: Use QemuMutex and QemuCond Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 05/16] linux-user: Add qemu_cpu_is_self() and qemu_cpu_kick() Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 06/16] cpus-common: move CPU list management to common code Paolo Bonzini
2016-09-22 15:24   ` Alex Bennée
2016-09-22 15:27     ` Paolo Bonzini
2016-09-22 15:51       ` Alex Bennée
2016-09-12 11:12 ` [Qemu-devel] [PATCH 07/16] cpus-common: move CPU work item " Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 08/16] cpus-common: fix uninitialized variable use in run_on_cpu Paolo Bonzini
2016-09-22 15:37   ` Alex Bennée
2016-09-12 11:12 ` [Qemu-devel] [PATCH 09/16] cpus-common: move exclusive work infrastructure from linux-user Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 10/16] docs: include formal model for TCG exclusive sections Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 11/16] cpus-common: always defer async_run_on_cpu work items Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 12/16] cpus-common: remove redundant call to exclusive_idle() Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 13/16] cpus-common: simplify locking for start_exclusive/end_exclusive Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 14/16] cpus-common: Introduce async_safe_run_on_cpu() Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 15/16] tcg: Make tb_flush() thread safe Paolo Bonzini
2016-09-12 11:12 ` [Qemu-devel] [PATCH 16/16] cpus-common: lock-free fast path for cpu_exec_start/end Paolo Bonzini
2016-09-14 17:16 ` Richard Henderson [this message]
2016-09-14 18:40   ` [Qemu-devel] [PATCH v7 00/16] cpu-exec: Safe work in quiescent state Paolo Bonzini
2016-09-19 12:50 Paolo Bonzini
2016-09-19 13:24 ` no-reply
2016-09-19 16:04 ` no-reply
2016-09-21 17:29 ` Emilio G. Cota
2016-09-21 18:20   ` Paolo Bonzini

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