linux-kernel - Re: [PATCH -mm] task_struct: move ->fpu

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] [day] [month] [year] [list]

Message-ID: <20070927065611.45c479fb@laptopd505.fenrus.org>
Date:	Thu, 27 Sep 2007 06:56:11 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Alexey Dobriyan <adobriyan@...ru>
Cc:	akpm@...l.org, linux-kernel@...r.kernel.org, devel@...nvz.org
Subject: Re: [PATCH -mm] task_struct: move ->fpu_counter and ->oomkilladj

On Thu, 27 Sep 2007 13:55:57 +0400
Alexey Dobriyan <adobriyan@...ru> wrote:

> There is nice 2 byte hole after struct task_struct::ioprio field
> into which we can put two 1-byte fields: ->fpu_counter and
> ->oomkilladj.
> 
> [cc'ing Arjan just in case ->fpu_counter placement wasn't completely
> random :^)]


fpu_counter was more or less random, but it does get written to
frequently (making the cacheline dirty)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/