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SYSCTL: Add a mutex to the page_alloc zone order sysctl
author
Andi Kleen
<ak@linux.intel.com>
Wed, 23 Dec 2009 20:00:47 +0000
(21:00 +0100)
committer
Andi Kleen
<ak@linux.intel.com>
Wed, 23 Dec 2009 20:01:16 +0000
(21:01 +0100)
The zone list code clearly cannot tolerate concurrent writers (I couldn't
find any locks for that), so simply add a global mutex. No need for RCU
in this case.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
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git.openpandora.org / pandora-kernel.git / commitdiff