lkml.org 
[lkml]   [2017]   [Sep]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/2] block: genhd: add device_add_disk_with_groups
On Thu, Sep 28, 2017 at 09:36:36PM +0200, Martin Wilck wrote:
> In the NVME subsystem, we're seeing a race condition with udev where
> device_add_disk() is called (which triggers an "add" uevent), and a
> sysfs attribute group is added to the disk device afterwards.
> If udev rules access these attributes before they are created,
> udev processing of the device is incomplete, in particular, device
> WWIDs may not be determined correctly.
>
> To fix this, this patch introduces a new function
> device_add_disk_with_groups(), which takes a list of attribute groups
> and adds them to the device before sending out uevents.
>
> Signed-off-by: Martin Wilck <mwilck@suse.com>

Is NVMe the only one having this problem? Was putting our attributes in
the disk's kobj a bad choice?

Any, looks fine to me.

Reviewed-by: Keith Busch <keith.busch@intel.com>

\
 
 \ /
  Last update: 2017-09-30 01:00    [W:0.070 / U:10.032 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site