From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Date: Sun, 11 Nov 2007 17:05:18 +0000 (+0900)
Subject: [MIPS] Fix potential latency problem due to non-atomic cpu_wait.
X-Git-Tag: v2.6.27-rc7~3^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c65a5480ff29198c241f11d39d9e34ab22c72c69;p=pandora-kernel.git

[MIPS] Fix potential latency problem due to non-atomic cpu_wait.

If an interrupt happened between checking of NEED_RESCHED and WAIT
instruction, adjust EPC to restart from checking of NEED_RESCHED.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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