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SubjectRe: [V9fs-developer] [RFC] we should solve create-unlink-getattr idiom
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On 2018/2/9 19:33, Greg Kurz wrote:
> On Fri, 9 Feb 2018 15:10:46 +0800
> jiangyiwen <jiangyiwen@huawei.com> wrote:
>
>> Hi Eric and Greg,
>>
>> I encountered the similar problem with create-unlink-getattr idiom.
>> I use the testcase that create-unlink-setattr idiom, and I see the
>> bug is reported at https://bugs.launchpad.net/qemu/+bug/1336794.
>> Then I also see you already fix the issue and push the patch to upstream.
>> https://github.com/ericvh/linux/commit/eaf70223eac094291169f5a6de580351890162a2
>> http://patchwork.ozlabs.org/patch/626194/
>>
>> Unfortunately, the two patches are not merged into master, I don't know
>> the reason, so I suggest if the patche can be merged into master, and
>> it will solve the create-unlink-getattr idiom.
>>
>
> I had tried to go a bit further and address the general issue of f*() syscalls
> versus unlinked files:
>
> QEMU:
> http://lists.gnu.org/archive/html/qemu-devel/2016-06/msg07586.html
>
> Linux 9p driver:
> https://sourceforge.net/p/v9fs/mailman/message/35175775/
>
> I remember that some issues were then reported during review of the
> linux patches, and I never got bandwidth to investigate further...
>
> But if you'd like to resurrect these threads, please do. :)
>
>> Thanks,
>> Yiwen
>>
>
> Cheers,
>
> --
> Greg
>
> .
>
Thanks Greg,

Ok, we will move forward, I hope we can solve these problems that you
encountered.

Thanks,
Yiwen.

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