On Wed 25-03-15 02:17:05, Johannes Weiner wrote: > Setting oom_killer_disabled to false is atomic, there is no need for > further synchronization with ongoing allocations trying to OOM-kill.
True, races with an ongoing allocations are not harmful. > Signed-off-by: Johannes Weiner <han...@cmpxchg.org> Acked-by: Michal Hocko <mho...@suse.cz> > --- > mm/oom_kill.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/mm/oom_kill.c b/mm/oom_kill.c > index 2b665da1b3c9..73763e489e86 100644 > --- a/mm/oom_kill.c > +++ b/mm/oom_kill.c > @@ -488,9 +488,7 @@ bool oom_killer_disable(void) > */ > void oom_killer_enable(void) > { > - down_write(&oom_sem); > oom_killer_disabled = false; > - up_write(&oom_sem); > } > > #define K(x) ((x) << (PAGE_SHIFT-10)) > -- > 2.3.3 > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majord...@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"d...@kvack.org"> em...@kvack.org </a> -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/