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From: Paolo Bonzini <pbonzini@redhat.com>
To: Markus Armbruster <armbru@redhat.com>,
	Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
	qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v2 0/2] block: warn about aio=native if libaio is unavailable
Date: Thu, 23 Jul 2015 10:08:31 +0200	[thread overview]
Message-ID: <55B0A0FF.4040607@redhat.com> (raw)
In-Reply-To: <87vbdbgv1n.fsf@blackfin.pond.sub.org>



On 23/07/2015 10:03, Markus Armbruster wrote:
> 
>> > v2:
>> >  * Banish CONFIG_LINUX_AIO from blockdev.c, that is raw-posix.c's business
>> >    [Kevin]
>> >  * Print the warning in the same way as the aio=native,cache.direct=off
>> >    deprecation warning [Kevin]
>> >
>> > Open question: what about the Windows case?  We now pass the
>> > FILE_FLAG_OVERLAPPED flag which we didn't do before for -drive aio=native.
> Odd.  Commit a273652 takes the trouble to implement native asynchronous
> I/O there, but unless CONFIG_LINUX_AIO somehow gets defined, it's
> unreachable, isn't it?  Paolo?

I don't remember how I tested that code, but it's probably been dead
code since it was committed.  If it's bitrot and thus these patches
break it, I will fix it.

Paolo

> I think PATCH 2's commit message needs to be updated to discuss the
> impact.

  reply	other threads:[~2015-07-23  9:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-17 14:23 [Qemu-devel] [PATCH v2 0/2] block: warn about aio=native if libaio is unavailable Stefan Hajnoczi
2015-07-17 14:23 ` [Qemu-devel] [PATCH v2 1/2] raw-posix: warn about BDRV_O_NATIVE_AIO " Stefan Hajnoczi
2015-07-23 10:09   ` Christian Borntraeger
2015-07-23 10:11     ` Denis V. Lunev
2015-07-23 11:58     ` Kevin Wolf
2015-07-17 14:23 ` [Qemu-devel] [PATCH v2 2/2] blockdev: always compile in -drive aio= parsing Stefan Hajnoczi
2015-07-23  7:58   ` Markus Armbruster
2015-07-23  8:03 ` [Qemu-devel] [PATCH v2 0/2] block: warn about aio=native if libaio is unavailable Markus Armbruster
2015-07-23  8:08   ` Paolo Bonzini [this message]
2015-07-23  8:15     ` Kevin Wolf
2015-07-23 12:06   ` Stefan Hajnoczi

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