From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 17:31:48 +0000 (-0400)
Subject: percpu_ref: minor code and comment updates
X-Git-Tag: fixes-against-v3.18-rc2~134^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6251f9976af7656b6970a8820153f356430f5de2;p=pandora-kernel.git

percpu_ref: minor code and comment updates

* Some comments became stale.  Updated.
* percpu_ref_tryget() unnecessarily initializes @ret.  Removed.
* A blank line removed from percpu_ref_kill_rcu().
* Explicit function name in a WARN format string replaced with __func__.
* WARN_ON() in percpu_ref_reinit() converted to WARN_ON_ONCE().

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
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