Re: [PATCH v8 11/12] zram: fix crashes with cpu hotplug multistate

Miroslav Benes <[email protected]>
Newsgroups org.kernel.vger.linux-spdx,org.kernel.vger.linux-block,org.kernel.vger.linux-doc,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel,org.kernel.vger.linux-kselftest
Message-ID <[email protected]>
> > By you only addressing the deadlock as a requirement on approach a) you are
> > forgetting that there *may* already be present drivers which *do* implement
> > such patterns in the kernel. I worked on addressing the deadlock because
> > I was informed livepatching *did* have that issue as well and so very
> > likely a generic solution to the deadlock could be beneficial to other
> > random drivers.
> 
> In-tree zram doesn't have such deadlock, if livepatching has such AA deadlock,
> just fixed it, and seems it has been fixed by 3ec24776bfd0.

I would not call it a fix. It is a kind of ugly workaround because the 
generic infrastructure lacked (lacks) the proper support in my opinion. 
Luis is trying to fix that.

Just my two cents.

Miroslav
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