On Tue, 2012-05-01 at 18:18 +0200, Peter Zijlstra wrote:
> ---
> mm/oom_kill.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/mm/oom_kill.c b/mm/oom_kill.c
> index 46bf2ed5..244a371 100644
> --- a/mm/oom_kill.c
> +++ b/mm/oom_kill.c
> @@ -607,6 +607,9 @@ int try_set_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_mask)
> struct zone *zone;
> int ret = 1;
>
> + synchronize_sched();
> + synchronize_rcu();
> +
> spin_lock(&zone_scan_lock);
> for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) {
> if (zone_is_oom_locked(zone)) {
>
Hmm I guess that should be rcu_barrier_sched(); rcu_barrier(); instead
of sync.
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