linux-kernel - Re: [PATCH] ARC: mm: remove __ARCH_USE_5LEVEL

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20191008234223.wycjktby2t5gwz3o@black.fi.intel.com>
Date:   Wed, 9 Oct 2019 02:42:23 +0300
From:   "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:     Vineet Gupta <Vineet.Gupta1@...opsys.com>
Cc:     linux-snps-arc@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH] ARC: mm: remove __ARCH_USE_5LEVEL_HACK

On Tue, Oct 08, 2019 at 09:38:36PM +0000, Vineet Gupta wrote:
> Add the intermediate p4d accessors to make it 5 level compliant.
> 
> Thi sis non-functional change anyways since ARC has software page walker
     ^
     Typo.
> with 2 lookup levels (pgd -> pte)
> 
> Signed-off-by: Vineet Gupta <vgupta@...opsys.com>
> ---
>  arch/arc/include/asm/pgtable.h |  1 -
>  arch/arc/mm/fault.c            | 10 ++++++++--
>  2 files changed, 8 insertions(+), 3 deletions(-)

Have you tested it with CONFIG_HIGHMEM=y? alloc_kmap_pgtable() has to be
converted too.

-- 
 Kirill A. Shutemov