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 |
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| 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