On Fri, 10 Feb 2012 18:32:25 +0100 Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> wrote: > From: Mel Gorman <mgorman@xxxxxxx> > > 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> > Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> At linux-next, conflicted with "mm: add extra free kbytes tunable" To the logic, Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>