linux-kernel - Re: [PATCH 0/4] io-controller: Use names rather than major:minor

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: <20100327003037.GD9280@redhat.com>
Date:	Fri, 26 Mar 2010 20:30:37 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Chad Talbott <ctalbott@...gle.com>
Cc:	Gui Jianfeng <guijianfeng@...fujitsu.com>, jens.axboe@...cle.com,
	mrubin@...gle.com, Li Zefan <lizf@...fujitsu.com>,
	linux-kernel@...r.kernel.org, dpshah@...gle.com,
	Nauman Rafique <nauman@...gle.com>
Subject: Re: [PATCH 0/4] io-controller: Use names rather than major:minor

On Fri, Mar 26, 2010 at 08:24:04PM -0400, Vivek Goyal wrote:
> On Fri, Mar 26, 2010 at 08:20:56PM -0400, Vivek Goyal wrote:
> 
> [..]
> > > Which controllers are these?
> > > 
> > 
> > linux-2.6/Documentation/cgroups/devices.txt
> > 
> > > > - Displaying both device major/minor and diskname is an option but that
> > > >  makes the file format syntax little complicated and new rule setting
> > > >  or removoal confusing.
> > > 
> > > A few messages back you mentioned that you preferred device names
> > > because they would be better for users of the system.  If there was a
> > > simple implementation, would you still be behind a new name-based
> > > interface?  We could go that direction and maintain ABI by deprecating
> > > current interface and making a new interface with names.
> > > 
> > > If you can't tell, I'm a big fan of using the name! :)  It's *much*
> > > more consistent with the interfaces in /sys.
> > 
> > /sys provides facility to access device both through device number
> > (/sys/dev/block/<major:minor>) and disk name (/sys/block/<diskname>). So
> > I don't know why do you think it is more consistent with /sys if we
> > use diskname.
> > 
> > In general user space seems to be accessing devices using device files.
> > For example, blockdev utility.
> 
> One more example is "blktrace".

Another example is "hdparm"

Vivek
--
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/