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Re: [Qemu-devel] [V9fs-developer] [RFC] we should solve create-unlink-ge

From: Greg Kurz
Subject: Re: [Qemu-devel] [V9fs-developer] [RFC] we should solve create-unlink-getattr idiom
Date: Fri, 9 Feb 2018 12:33:42 +0100

On Fri, 9 Feb 2018 15:10:46 +0800
jiangyiwen <address@hidden> 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:


Linux 9p driver:

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



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