Re: [PATCH] loop: add some basic read-only sysfs attributes

From: Kay Sievers
Date: Fri Jul 30 2010 - 03:44:14 EST

On Fri, Jul 30, 2010 at 09:37, Karel Zak <kzak@xxxxxxxxxx> wrote:
> On Thu, Jul 29, 2010 at 06:07:31PM +0200, Kay Sievers wrote:
>> Sure it does. Sysfs attributes need to be created _before_ uevents are
>> sent out. The current behavior is that all blockdev attributes are
>> safely created before the event is sent.
> ÂHmm... I see that in add_disk(), the "queue" subdirectory is created
> Âafter disk registration (the register_disk() calls kobject_uevent()).
> ÂIs it true?

Might be. Then seems nobody has tried using this stuff from udev. :)

blk_register_queue() probably needs to move to register_disk(), where
the uevent is delayed until all stuff is properly created.

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