commit e09b457bdb7e8d23fc54dcef0930ac697d8de895
author Tejun Heo <tj@kernel.org> Sat Nov 13 11:55:17 2010 +0100
committer Tejun Heo <tj@kernel.org> Sat Nov 13 11:55:17 2010 +0100
tree 41035bf61a8acb08292d01c0f66e5450502688af
parent 37004c42f7240035bc2726c340c4efa726b4818e

block: simplify holder symlink handling

Code to manage symlinks in /sys/block/*/{holders|slaves} are overly
complex with multiple holder considerations, redundant extra
references to all involved kobjects, unused generic kobject holder
support and unnecessary mixup with bd_claim/release functionalities.

Strip it down to what's necessary (single gendisk holder) and make it
use a separate interface.  This is a step for cleaning up
bd_claim/release.  This patch makes dm-table slightly more complex but
it will be simplified again with further changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Neil Brown <neilb@suse.de>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Cc: dm-devel@redhat.com