linux-kernel - Re: [PATCH 09/10] Change table chaining layout

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: <20071023205710.GA32592@one.firstfloor.org>
Date:	Tue, 23 Oct 2007 22:57:10 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Boaz Harrosh <bharrosh@...asas.com>,
	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	mingo@...e.hu
Subject: Re: [PATCH 09/10] Change table chaining layout

On Tue, Oct 23, 2007 at 10:20:17PM +0200, Jens Axboe wrote:
> On Tue, Oct 23 2007, Andi Kleen wrote:
> > Jens Axboe <jens.axboe@...cle.com> writes:
> > 
> > >> You might want to put a BUG_ON(page & 0x3); Make sure
> > >> you're not loosing information. (The m68k problem)
> > >
> > > That's a really good idea, thanks Boaz! I'll add that.
> > 
> > It would be even better if you replaced all the magic numbers with defines
> > or better accessors.
> 
> All? There are two numbers, and all are confined to scatterlist.h
> privately. Except the one in blk_rq_map_sg(), which was done on purpose
> since I don't want to export that knowledge to others. So we definitely
> don't want accessors, I can name the two bit values but don't see much
> point in doing it.

Maybe no point for you, but it would be helpful for any poor soul
who has to read/debug/change the code later.

Even if they're limited right now that doesn't mean it'll stay
that way anyways.

-Andi
-
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/