linux-kernel - Re: [PATCH] block: look up block device path in sysfs

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Message-ID: <20080126202246.GB28444@infradead.org>
Date:	Sat, 26 Jan 2008 20:22:47 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	akpm@...ux-foundation.org, jens.axboe@...cle.com, neilb@...e.de,
	kay.sievers@...y.org, linux-kernel@...r.kernel.org,
	viro@...IV.linux.org.uk
Subject: Re: [PATCH] block: look up block device path in sysfs

On Fri, Jan 25, 2008 at 10:04:51PM -0700, Dan Williams wrote:
> Given an fd on a block device, returns a string like
> 
> 	/block/sda/sda1
> 
> which can be used to find related information in /sys.
> 
> Ideally we should have an ioctl that works on char devices as well,
> but that seems far from trivial, so it seems reasonable to have
> this until the latter can be implemented.

What did you do to address Viro's reasonable rejection of this when
it came up last time?

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