linux-kernel - Re: [PATCH v2 2/2] mm: provide a fallback for PAGE_KERNEL

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Message-ID: <20180510171432.GC27853@wotan.suse.de>
Date:   Thu, 10 May 2018 17:14:32 +0000
From:   "Luis R. Rodriguez" <mcgrof@...nel.org>
To:     "Luis R. Rodriguez" <mcgrof@...nel.org>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Arnd Bergmann <arnd@...db.de>,
        Greg KH <gregkh@...uxfoundation.org>,
        Matthew Wilcox <willy@...radead.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Linux MM <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] mm: provide a fallback for PAGE_KERNEL_EXEC for
 architectures

On Thu, May 10, 2018 at 03:33:55PM +0000, Luis R. Rodriguez wrote:
> On Thu, May 10, 2018 at 09:45:56AM +0200, Geert Uytterhoeven wrote:
> > Hi Luis,
> > 
> > On Thu, May 10, 2018 at 3:44 AM, Luis R. Rodriguez <mcgrof@...nel.org> wrote:
> > > Some architectures just don't have PAGE_KERNEL_EXEC. The mm/nommu.c
> > > and mm/vmalloc.c code have been using PAGE_KERNEL as a fallback for years.
> > > Move this fallback to asm-generic.
> > >
> > > Architectures which do not define PAGE_KERNEL_EXEC yet:
> > >
> > >   o alpha
> > >   o mips
> > >   o openrisc
> > >   o sparc64
> > 
> > The above list seems to be far from complete?
> 
> I'll look again. If you know of others lemme know.

You know, better just ignore documenting these. I'll respin without that.

  Luis