linux-kernel - Re: [PATCH v6 03/11] powerpc/mm: Adds arch-specificic functions to track lockless pgtable walks

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Date:   Mon, 17 Feb 2020 17:32:33 -0300
From:   Leonardo Bras <leonardo@...ux.ibm.com>
To:     Christophe Leroy <christophe.leroy@....fr>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Arnd Bergmann <arnd@...db.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Steven Price <steven.price@....com>,
        Robin Murphy <robin.murphy@....com>,
        Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>,
        Balbir Singh <bsingharora@...il.com>,
        Reza Arbab <arbab@...ux.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Allison Randal <allison@...utok.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Michal Suchanek <msuchanek@...e.de>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        kvm-ppc@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH v6 03/11] powerpc/mm: Adds arch-specificic functions to
 track lockless pgtable walks

On Fri, 2020-02-07 at 01:38 -0300, Leonardo Bras wrote:
> > Why not make them static inline just like the generic ones ?
> > 
> 
> Sure, can be done.  It would save some function calls.
> For that I will define the per-cpu variable in .c and declare it in .h
> All new function can be moved to .h, while changing adding the inline
> modifier.

Just tried doing that, but percpu stuff relies in paca definitions, and
this ends up creating some cyclic dependencies.

I could try to change that, but the amount of change is big and
probably should be dealt in another patchset.

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