linux-kernel - Re: [PATCH 1/2] x86/setup: consolidate early memory reservations

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: <20210125145911.GF23070@zn.tnic>
Date:   Mon, 25 Jan 2021 15:59:11 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Baoquan He <bhe@...hat.com>,
        David Hildenbrand <david@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
        Mel Gorman <mgorman@...e.de>, Michal Hocko <mhocko@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>, Qian Cai <cai@....pw>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vlastimil Babka <vbabka@...e.cz>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, x86@...nel.org
Subject: Re: [PATCH 1/2] x86/setup: consolidate early memory reservations

On Fri, Jan 15, 2021 at 10:32:54AM +0200, Mike Rapoport wrote:
> +	trim_low_memory_range();

Btw, you can get rid of that one too:

/*
 * Here we put platform-specific memory range workarounds, i.e.
 * memory known to be corrupt or otherwise in need to be reserved on
 * specific platforms.
 *
 * If this gets used more widely it could use a real dispatch mechanism.
 */
static void __init trim_platform_memory_ranges(void)
{
        trim_snb_memory();
}

yeah, yeah, we can do a real dispatch mechanism but we didn't need one
since 2012 so I guess we can get rid of trim_platform_memory_ranges()
and call trim_snb_memory() directly and simplify it even more.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette