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From: Richard Henderson <rth@twiddle.net>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Blue Swirl <blauwirbel@gmail.com>,
	Gerd Hoffmann <kraxel@redhat.com>,
	qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: [RfC PATCH 08/11] spice: add qxl device
Date: Fri, 16 Apr 2010 07:53:37 -0500	[thread overview]
Message-ID: <4BC85DD1.4070700@twiddle.net> (raw)
In-Reply-To: <690188359.186761271413099506.JavaMail.root@zmail07.collab.prod.int.phx2.redhat.com>

On 04/16/2010 05:18 AM, Paolo Bonzini wrote:
>>> I'd just use __sync_fetch_and_or here.
>>
>> Good idea.  I think we can zap the memory barrier and fix a small race
>> while being at it, see the incremental fix below.
>
> Not sure about the memory barrier semantics of __sync_* (rth?), but
> besides that the patch seems like a good idea.
>

The semantics of __sync_*, with only 2 exceptions, is full barrier.


r~

  parent reply	other threads:[~2010-04-16 12:53 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-14  9:55 [Qemu-devel] [RfC PATCH 00/11] Add spice support to qemu Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 01/11] vgabios update to 0.6c, add bios for qxl/unstable Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 02/11] add spice into the configure file Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 03/11] spice: core bits Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 04/11] spice: add keyboard Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 05/11] spice: add mouse Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 06/11] spice: simple display Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 07/11] spice: tls support Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 08/11] spice: add qxl device Gerd Hoffmann
2010-04-14 16:52   ` Blue Swirl
2010-04-14 23:08     ` [Qemu-devel] " Paolo Bonzini
2010-04-15 16:47       ` Blue Swirl
2010-04-15 19:27         ` Richard Henderson
2010-04-16  8:02       ` Gerd Hoffmann
2010-04-16 10:18         ` Paolo Bonzini
2010-04-16 10:34           ` Gerd Hoffmann
2010-04-16 12:53           ` Richard Henderson [this message]
2010-04-14 22:21   ` [Qemu-devel] " Alexander Graf
2010-04-16  8:08     ` Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 09/11] qxl: local rendering for sdl/vnc Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 10/11] spice: add tablet support Gerd Hoffmann
2010-04-14  9:55 ` [Qemu-devel] [RfC PATCH 11/11] spice: add audio Gerd Hoffmann
2010-04-14 20:51   ` malc
2010-04-14 23:14     ` [Qemu-devel] " Paolo Bonzini
2010-04-15  0:13       ` malc
2010-04-15  0:26         ` Paolo Bonzini
2010-04-15  0:29           ` malc
2010-04-16  8:40     ` [Qemu-devel] " Gerd Hoffmann
2010-04-16 11:13       ` Gerd Hoffmann

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