linux-kernel - Re: [PATCH v5 2/4] sparc: Advertise gigantic page support

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]

Date:   Wed, 06 Mar 2019 11:04:36 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     alex@...ti.fr
Cc:     vbabka@...e.cz, catalin.marinas@....com, will.deacon@....com,
        benh@...nel.crashing.org, paulus@...ba.org, mpe@...erman.id.au,
        schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
        ysato@...rs.sourceforge.jp, dalias@...c.org, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, hpa@...or.com, x86@...nel.org,
        dave.hansen@...ux.intel.com, luto@...nel.org, peterz@...radead.org,
        mike.kravetz@...cle.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
        sparclinux@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v5 2/4] sparc: Advertise gigantic page support

From: Alexandre Ghiti <alex@...ti.fr>
Date: Wed,  6 Mar 2019 14:00:03 -0500

> sparc actually supports gigantic pages and selecting
> ARCH_HAS_GIGANTIC_PAGE allows it to allocate and free
> gigantic pages at runtime.
> 
> sparc allows configuration such as huge pages of 16GB,
> pages of 8KB and MAX_ORDER = 13 (default):
> HPAGE_SHIFT (34) - PAGE_SHIFT (13) = 21 >= MAX_ORDER (13)
> 
> Signed-off-by: Alexandre Ghiti <alex@...ti.fr>

Much better.

Acked-by: David S. Miller <davem@...emloft.net>