From: Tejun Heo <tj@kernel.org>
Date: Tue, 24 Feb 2009 02:57:21 +0000 (+0900)
Subject: percpu: remove unit_size power-of-2 restriction
X-Git-Tag: v2.6.30-rc1~2^2~50^2~19^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9b55eeb1d55ef2dc5a4fdbff9604c2c68cb5649;p=pandora-kernel.git

percpu: remove unit_size power-of-2 restriction

Impact: allow unit_size to be arbitrary multiple of PAGE_SIZE

In dynamic percpu allocator, there is no reason the unit size should
be power of two.  Remove the restriction.

As non-power-of-two unit size means that empty chunks fall into the
same slot index as lightly occupied chunks which is bad for reclaming.
Reserve an extra slot for empty chunks.

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

Reading git-diff-tree failed