On 02/06/2012 05:56 PM, Mel Gorman wrote:
There is a race between the min_free_kbytes sysctl, memory hotplug and transparent hugepage support enablement. Memory hotplug uses a zonelists_mutex to avoid a race when building zonelists. Reuse it to serialise watermark updates. [a.p.zijlstra@xxxxxxxxx: Older patch fixed the race with spinlock] Signed-off-by: Mel Gorman<mgorman@xxxxxxx>
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