From: David S. Miller <davem@davemloft.net>
Date: Wed, 1 Feb 2006 02:34:51 +0000 (-0800)
Subject: [SPARC64]: Fix race in LOAD_PER_CPU_BASE()
X-Git-Tag: v2.6.17-rc1~1184^2~209
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86b818687d4894063ecd1190e54717a0cce8c009;p=pandora-kernel.git

[SPARC64]: Fix race in LOAD_PER_CPU_BASE()

Since we use %g5 itself as a temporary, it can get clobbered
if we take an interrupt mid-stream and thus cause end up with
the final %g5 value too early as a result of rtrap processing.

Set %g5 at the very end, atomically, to avoid this problem.

Signed-off-by: David S. Miller <davem@davemloft.net>
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