linux-kernel - Re: [PATCH v2 1/2] kprobes: Allow architectures to override optinsn page allocation

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Date:   Sun, 06 Jun 2021 22:08:41 +1000
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     naveen.n.rao@...ux.ibm.com, anil.s.keshavamurthy@...el.com,
        mhiramat@...nel.org, davem@...emloft.net,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Mackerras <paulus@...ba.org>
Cc:     linuxppc-dev@...ts.ozlabs.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] kprobes: Allow architectures to override optinsn page allocation

On Thu, 13 May 2021 09:07:51 +0000 (UTC), Christophe Leroy wrote:
> Some architectures like powerpc require a non standard
> allocation of optinsn page, because module pages are
> too far from the kernel for direct branches.
> 
> Define weak alloc_optinsn_page() and free_optinsn_page(), that
> fall back on alloc_insn_page() and free_insn_page() when not
> overriden by the architecture.

Applied to powerpc/next.

[1/2] kprobes: Allow architectures to override optinsn page allocation
      https://git.kernel.org/powerpc/c/7ee3e97e00a3893e354c3993c3f7d9dc127e9c5e
[2/2] powerpc/kprobes: Replace ppc_optinsn by common optinsn
      https://git.kernel.org/powerpc/c/b73c8cccd72ac28beaf262fd6ef4b91411fc8335

cheers