linux-kernel - Re: /sys/block [was: [PATCH 007 of 7] md: Get name for block device in sysfs]

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]

Date:	Mon, 17 Dec 2007 12:13:05 +0300
From:	Michael Tokarev <mjt@....msk.ru>
To:	Michael Tokarev <mjt@....msk.ru>
CC:	Kay Sievers <kay.sievers@...y.org>, linux-kernel@...r.kernel.org,
	Greg KH <greg@...ah.com>
Subject: Re: /sys/block [was: [PATCH 007 of 7] md: Get name for block	device
 in sysfs]

Michael Tokarev wrote:
> Kay Sievers wrote:
>> On Mon, 2007-12-17 at 08:29 +0300, Michael Tokarev wrote:
> []
>>> How to distinguish char devices from block devices in sysfs?
>>> Is the only way to read a symlink `subsystem' in the device
>>> directory?
>> By its subsystem value (block), from the symlink, from the environment,
>> or from $1.
> 
> Environment and $1 comes as arguments for hotplug helper, not
> when scanning /sys/.

By the way, that's one of reasons I asked about useful content
in uevent files (but failed to provide a patch so far ;).
In 2.6.23, those files ARE readable finally, but doesn't
contain much info yet.

/mjt
--
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/