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SubjectRe: [PATCH] loop: add some basic read-only sysfs attributes
On Fri, Jul 30, 2010 at 09:43, Kay Sievers <kay.sievers@vrfy.org> wrote:
> On Fri, Jul 30, 2010 at 09:37, Karel Zak <kzak@redhat.com> 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.
>>
>>  Hmm... I see that in add_disk(), the "queue" subdirectory is created
>>  after disk registration (the register_disk() calls kobject_uevent()).
>>  Is 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.

Seems, someone should finally move register_disk() from
fs/partition/check.c to block/genhd.c, where it belongs, and merge the
code into add_disk(), where the control over the event timing is
easily possible.

Kay
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