linux-kernel - Re: [PATCH] x86/mm: Pre-allocate p4d/pud pages for vmalloc area

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: <20200626113101.GG4817@hirez.programming.kicks-ass.net>
Date:   Fri, 26 Jun 2020 13:31:01 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Joerg Roedel <jroedel@...e.de>
Cc:     Joerg Roedel <joro@...tes.org>, x86@...nel.org, hpa@...or.com,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] x86/mm: Pre-allocate p4d/pud pages for vmalloc area

On Fri, Jun 26, 2020 at 01:17:11PM +0200, Joerg Roedel wrote:
> On Fri, Jun 26, 2020 at 01:07:31PM +0200, Peter Zijlstra wrote:
> > Can't we now remove arch_sync_kernel_mappings() from this same file?
> 
> Only if we panic on allocation failure.

I think we do that in plenty places already, so sure ;-)