linux-kernel - Re: [PATCH v2 01/13] alpha: use pgtable-nop4d instead of 4level-fixup

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Message-ID: <20191101215905.GB20065@rapoport-lnx>
Date:   Fri, 1 Nov 2019 22:59:11 +0100
From:   Mike Rapoport <rppt@...nel.org>
To:     "Kirill A. Shutemov" <kirill@...temov.name>
Cc:     linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Arnd Bergmann <arnd@...db.de>,
        "David S. Miller" <davem@...emloft.net>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Greentime Hu <green.hu@...il.com>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Helge Deller <deller@....de>,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
        Jeff Dike <jdike@...toit.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Mark Salter <msalter@...hat.com>,
        Matt Turner <mattst88@...il.com>,
        Michal Simek <monstr@...str.eu>, Peter Rosin <peda@...ntia.se>,
        Richard Weinberger <richard@....at>,
        Rolf Eike Beer <eike-kernel@...tec.de>,
        Russell King <linux@...linux.org.uk>,
        Sam Creasey <sammy@...my.net>,
        Vincent Chen <deanbo422@...il.com>,
        Vineet Gupta <Vineet.Gupta1@...opsys.com>,
        linux-alpha@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-c6x-dev@...ux-c6x.org,
        linux-kernel@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linux-parisc@...r.kernel.org, linux-um@...ts.infradead.org,
        sparclinux@...r.kernel.org, Mike Rapoport <rppt@...ux.ibm.com>
Subject: Re: [PATCH v2 01/13] alpha: use pgtable-nop4d instead of 4level-fixup

On Fri, Nov 01, 2019 at 12:11:57PM +0300, Kirill A. Shutemov wrote:
> On Fri, Nov 01, 2019 at 10:39:32AM +0200, Mike Rapoport wrote:
> > From: Mike Rapoport <rppt@...ux.ibm.com>
> > 
> > It is not likely alpha will have 5-level page tables.
> > 
> > Replace usage of include/asm-generic/4level-fixup.h and implied
> > __ARCH_HAS_4LEVEL_HACK with include/asm-generic/pgtable-nop4d.h and adjust
> > page table manipulation macros and functions accordingly.
> 
> Not pgtable-nop4d.h, but pgtable-nopud.h. Also in subject.

Ouch, of course.
 
> -- 
>  Kirill A. Shutemov

-- 
Sincerely yours,
Mike.