From: Tejun Heo <tj@kernel.org>
Date: Tue, 2 Sep 2014 18:46:02 +0000 (-0400)
Subject: percpu: make pcpu_alloc_area() capable of allocating only from populated areas
X-Git-Tag: omap-for-v3.19/prcm-cleanup~131^2~27
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a16037c8dfc2734c1a2c8e3ffd4766ed25f2a41d;p=pandora-kernel.git

percpu: make pcpu_alloc_area() capable of allocating only from populated areas

Update pcpu_alloc_area() so that it can skip unpopulated areas if the
new parameter @pop_only is true.  This is implemented by a new
function, pcpu_fit_in_area(), which determines the amount of head
padding considering the alignment and populated state.

@pop_only is currently always false but this will be used to implement
atomic allocation.

Signed-off-by: Tejun Heo <tj@kernel.org>
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