From: Rusty Russell <rusty@rustcorp.com.au>
Date: Sun, 11 Jan 2009 05:58:09 +0000 (-0800)
Subject: cpumask: convert lib/smp_processor_id to new cpumask ops
X-Git-Tag: v2.6.29-rc4~78^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ab0a9409af5fad74ad1fc9e46d5a8b460f353e9;p=pandora-kernel.git

cpumask: convert lib/smp_processor_id to new cpumask ops

Impact: fix debug_smp_processor_id() for CONFIG_CPUMASK_OFFSTACK=y

The scheduler now uses the new cpumask API, which deals up to
nr_cpumask_bits, whereas the API used NR_CPUS bits.

If CONFIG_CPUMASK_OFFSTACK=y these two are not equal, so the top bits
are undefined.  Leading to bug 12518 "BUG: using smp_processor_id() in
preemptible [00000000] code: dellWirelessCtl/..."

The fix is simple: use the modern API in the check.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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