linux-kernel - Re: [PATCH 10/16] mm: rename CONFIG_HAVE_GENERIC_GUP to CONFIG_HAVE_FAST

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Date:   Tue, 25 Jun 2019 09:50:08 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jason Gunthorpe <jgg@...pe.ca>
Cc:     Christoph Hellwig <hch@....de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        "David S. Miller" <davem@...emloft.net>,
        Nicholas Piggin <npiggin@...il.com>,
        Khalid Aziz <khalid.aziz@...cle.com>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        linux-mips@...r.kernel.org, linux-sh@...r.kernel.org,
        sparclinux@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-mm@...ck.org, x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/16] mm: rename CONFIG_HAVE_GENERIC_GUP to
 CONFIG_HAVE_FAST_GUP

On Fri, Jun 21, 2019 at 11:28:24AM -0300, Jason Gunthorpe wrote:
> On Tue, Jun 11, 2019 at 04:40:56PM +0200, Christoph Hellwig wrote:
> > We only support the generic GUP now, so rename the config option to
> > be more clear, and always use the mm/Kconfig definition of the
> > symbol and select it from the arch Kconfigs.
> 
> Looks OK to me
> 
> Reviewed-by: Jason Gunthorpe <jgg@...lanox.com>
> 
> But could you also roll something like this in to the series? There is
> no longer any reason for the special __weak stuff that I can see -
> just follow the normal pattern for stubbing config controlled
> functions through the header file.

Something pretty similar is done later in this series.