From: Tejun Heo <tj@kernel.org>
Date: Tue, 29 Sep 2009 00:17:56 +0000 (+0900)
Subject: percpu: fix unit_map[] verification in pcpu_setup_first_chunk()
X-Git-Tag: v2.6.32-rc3~65^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ffe0d5a575459ffe664b0762130b557f826fcace;p=pandora-kernel.git

percpu: fix unit_map[] verification in pcpu_setup_first_chunk()

pcpu_setup_first_chunk() incorrectly used NR_CPUS as the impossible
unit number while unit number can equal and go over NR_CPUS with
sparse unit map.  This triggers BUG_ON() spuriously on machines which
have non-power-of-two number of cpus.  Use UINT_MAX instead.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-tested-by: Tony Vroon <tony@linx.net>
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