Re: [4/5] powerpc/livepatch: Add livepatch stack to struct thread_info

From	Michael Ellerman <mpe@ellerman.id.au>
Newsgroups	linux.kernel
Subject	Re: [4/5] powerpc/livepatch: Add livepatch stack to struct thread_info
Date	2016-04-19 12:20 +0200
Message-ID	<rpAVd-5ed-21@gated-at.bofh.it> (permalink)
References	<rnsyL-1lV-45@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Wed, 2016-13-04 at 12:53:22 UTC, Michael Ellerman wrote:
> In order to support live patching we need to maintain an alternate
> stack of TOC & LR values. We use the base of the stack for this, and
> store the "live patch stack pointer" in struct thread_info.
> 
> Unlike the other fields of thread_info, we can not statically initialise
> that value, so it must be done at run time.
> 
> This patch just adds the code to support that, it is not enabled until
> the next patch which actually adds live patch support.
> 
> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
> Acked-by: Balbir Singh <bsingharora@gmail.com>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/5d31a96e6c0187f2c5d7004e00

cheers

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Re: [4/5] powerpc/livepatch: Add livepatch stack to struct thread_info Michael Ellerman <mpe@ellerman.id.au> - 2016-04-19 12:20 +0200

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