From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Wed, 29 Jul 2009 21:54:25 +0000 (-0600)
Subject: ACPI: bind workqueues to CPU 0 to avoid SMI corruption
X-Git-Tag: v2.6.31-rc6~85^2~3^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74b5820808215f65b70b05a099d6d3c969b82689;p=pandora-kernel.git

ACPI: bind workqueues to CPU 0 to avoid SMI corruption

On some machines, a software-initiated SMI causes corruption unless the
SMI runs on CPU 0.  An SMI can be initiated by any AML, but typically it's
done in GPE-related methods that are run via workqueues, so we can avoid
the known corruption cases by binding the workqueues to CPU 0.

References:
    http://bugzilla.kernel.org/show_bug.cgi?id=13751
    https://bugs.launchpad.net/bugs/157171
    https://bugs.launchpad.net/bugs/157691

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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