linux-kernel - Re: [patch 05/11] dm-snap: remove SECTOR

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]

Date:	Mon, 13 Aug 2007 11:20:36 +0200
From:	Jan Blunck <jblunck@...e.de>
To:	dm-devel@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [patch 05/11] dm-snap: remove SECTOR_SHIFT define

On Fri, Aug 10, Alasdair G Kergon wrote:

> On Fri, Aug 10, 2007 at 10:02:09PM +0200, Jan Blunck wrote:
> > Sector size on Linux is always 512 bytes. Don't even try to give the
> > impression this is changeable.
> 
> If that's what worries you, add a comment next to the definition,
> perhaps?

That and that the code just looks more like the rest of the block layer
code. Only a few users (UFS, MSDOS, HFS, IDE) use a predefined
SECTOR_{SHIFT,SIZE}.

> It's there so you can easily locate all the places within dm that
> perform these conversions by using a simple search.  Searching for '9'
> wouldn't be as easy.  (I don't know about other people, but I find the
> code easier to read the way it is.)

Hmm, so I guess this is more about dis/like of how the code looks. Maybe we
should define a global SECTOR_{SIZE,SHIFT} into blkdev.h.

Regards,
	Jan

-- 
Jan Blunck <jblunck@...e.de>
-
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/