diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c index 21a3f7250531c6a4e7891843f08f1919a31f890e..65f36d7287149a799c88207fcc1566134b6ea8d7 100644 --- a/drivers/staging/android/ashmem.c +++ b/drivers/staging/android/ashmem.c @@ -692,6 +692,9 @@ static long ashmem_ioctl(struct file *file, unsigned int cmd, unsigned long arg) .gfp_mask = GFP_KERNEL, .nr_to_scan = 0, }; + + nodes_setall(sc.nodes_to_scan); + ret = ashmem_shrink(&ashmem_shrinker, &sc); sc.nr_to_scan = ret; ashmem_shrink(&ashmem_shrinker, &sc); diff --git a/fs/drop_caches.c b/fs/drop_caches.c index c00e055b62820945bef291fa68b145a4d7145667..9fd702f5bfb2886a715e787b6470615ea07021e0 100644 --- a/fs/drop_caches.c +++ b/fs/drop_caches.c @@ -44,6 +44,7 @@ static void drop_slab(void) .gfp_mask = GFP_KERNEL, }; + nodes_setall(shrink.nodes_to_scan); do { nr_objects = shrink_slab(&shrink, 1000, 1000); } while (nr_objects > 10); diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h index 884e76222e1baf66d3a7649a3f07dcf7f54f52fe..76f520c4c394866e22839a3c12261e15280ee382 100644 --- a/include/linux/shrinker.h +++ b/include/linux/shrinker.h @@ -16,6 +16,9 @@ struct shrink_control { /* How many slab objects shrinker() should scan and try to reclaim */ unsigned long nr_to_scan; + + /* shrink from these nodes */ + nodemask_t nodes_to_scan; }; #define SHRINK_STOP (~0UL) diff --git a/mm/memory-failure.c b/mm/memory-failure.c index d84c5e5331bb5199632f46fda6d3ca3fef9dbaf4..baa4e0a45dec980f42329ec745d5c543951ccdd9 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -248,10 +248,12 @@ void shake_page(struct page *p, int access) */ if (access) { int nr; + int nid = page_to_nid(p); do { struct shrink_control shrink = { .gfp_mask = GFP_KERNEL, }; + node_set(nid, shrink.nodes_to_scan); nr = shrink_slab(&shrink, 1000, 1000); if (page_count(p) == 1) diff --git a/mm/vmscan.c b/mm/vmscan.c index 4d4e859b4b9c7e59853eafbeb4348afb4a701a5b..fe0d5c458440c4f4a8f04eb6f6f6537c89bf6fcc 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2374,12 +2374,16 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist, */ if (global_reclaim(sc)) { unsigned long lru_pages = 0; + + nodes_clear(shrink->nodes_to_scan); for_each_zone_zonelist(zone, z, zonelist, gfp_zone(sc->gfp_mask)) { if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL)) continue; lru_pages += zone_reclaimable_pages(zone); + node_set(zone_to_nid(zone), + shrink->nodes_to_scan); } shrink_slab(shrink, sc->nr_scanned, lru_pages); @@ -2836,6 +2840,8 @@ static bool kswapd_shrink_zone(struct zone *zone, return true; shrink_zone(zone, sc); + nodes_clear(shrink.nodes_to_scan); + node_set(zone_to_nid(zone), shrink.nodes_to_scan); reclaim_state->reclaimed_slab = 0; nr_slab = shrink_slab(&shrink, sc->nr_scanned, lru_pages); @@ -3544,10 +3550,9 @@ static int __zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order) * number of slab pages and shake the slab until it is reduced * by the same nr_pages that we used for reclaiming unmapped * pages. - * - * Note that shrink_slab will free memory on all zones and may - * take a long time. */ + nodes_clear(shrink.nodes_to_scan); + node_set(zone_to_nid(zone), shrink.nodes_to_scan); for (;;) { unsigned long lru_pages = zone_reclaimable_pages(zone);