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Re: Can I use static keys from asm?

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: Can I use static keys from asm?
Date 2015-08-18 04:30 +0200
Message-ID <pYEP0-11i-11@gated-at.bofh.it> (permalink)
References <pYE2B-8d3-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Mon, Aug 17, 2015 at 06:34:08PM -0700, Andy Lutomirski wrote:
> 2. Context tracking enabled in config but completely disabled at
> runtime.  Distros do this.  I want to nop out the context tracking
> hooks.  We have a static_key for this, but half the hooks are in asm.

> To unsuck case 2, static keys in asm would help.  Can I do that?  It
> would be even better if I could do that in 4.3.

I think Anton did a number of patches to enable static_key usage in asm
on PowerPC. x86 would need a bit of work but nothing makes it
fundamentally impossible.
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Thread

Can I use static keys from asm? Andy Lutomirski <luto@amacapital.net> - 2015-08-18 03:40 +0200
  Re: Can I use static keys from asm? Peter Zijlstra <peterz@infradead.org> - 2015-08-18 04:30 +0200

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