On Fri 03-11-17 22:46:29, Tetsuo Handa wrote: [...] > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index c274960..547e9cb 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -3312,11 +3312,10 @@ void warn_alloc(gfp_t gfp_mask, nodemask_t *nodemask, > const char *fmt, ...) > } > > /* > - * Go through the zonelist yet one more time, keep very high watermark > - * here, this is only to catch a parallel oom killing, we must fail if > - * we're still under heavy pressure. But make sure that this reclaim > - * attempt shall not depend on __GFP_DIRECT_RECLAIM && !__GFP_NORETRY > - * allocation which will never fail due to oom_lock already held. > + * This allocation attempt must not depend on __GFP_DIRECT_RECLAIM && > + * !__GFP_NORETRY allocation which will never fail due to oom_lock > + * already held. And since this allocation attempt does not sleep, > + * there is no reason we must use high watermark here. > */ > page = get_page_from_freelist((gfp_mask | __GFP_HARDWALL) & > ~__GFP_DIRECT_RECLAIM, order,
Which patch does this depend on? -- Michal Hocko SUSE Labs
