Messages in this thread | | | Date | Thu, 16 Nov 2017 12:44:22 -0500 | From | Johannes Weiner <> | Subject | Re: [PATCH 1/2] mm,vmscan: Kill global shrinker lock. |
| |
On Wed, Nov 15, 2017 at 09:56:02AM +0900, Minchan Kim wrote: > @@ -498,6 +498,14 @@ static unsigned long shrink_slab(gfp_t gfp_mask, int nid, > sc.nid = 0; > > freed += do_shrink_slab(&sc, shrinker, nr_scanned, nr_eligible); > + /* > + * bail out if someone want to register a new shrinker to prevent > + * long time stall by parallel ongoing shrinking. > + */ > + if (rwsem_is_contended(&shrinker_rwsem)) { > + freed = 1; > + break; > + } > }
When you send the formal version, please include
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
| |