From: Hugh Dickins <hugh@veritas.com>
Date: Fri, 18 May 2007 16:47:01 +0000 (+1000)
Subject: [POWERPC] Fix smp_call_function to be preempt-safe
X-Git-Tag: v2.6.22-rc3~101
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3fdaed9e973687f088c9c156a6e20870386e0b7;p=pandora-kernel.git

[POWERPC] Fix smp_call_function to be preempt-safe

smp_call_function_map() was not safe against preemption to another
cpu: its test for removing self from map was outside the spinlock.
Rearrange it a little to fix that.

smp_call_function_single() was also wrong: now get_cpu() before
excluding self, as other architectures do.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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