diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 52 |
1 files changed, 28 insertions, 24 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index c55763e..915dceb 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -89,12 +89,6 @@ struct scan_control { * are scanned. */ nodemask_t *nodemask; - - /* Pluggable isolate pages callback */ - unsigned long (*isolate_pages)(unsigned long nr, struct list_head *dst, - unsigned long *scanned, int order, int mode, - struct zone *z, struct mem_cgroup *mem_cont, - int active, int file); }; #define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru)) @@ -1010,7 +1004,6 @@ static unsigned long isolate_pages_global(unsigned long nr, struct list_head *dst, unsigned long *scanned, int order, int mode, struct zone *z, - struct mem_cgroup *mem_cont, int active, int file) { int lru = LRU_BASE; @@ -1154,11 +1147,11 @@ static unsigned long shrink_inactive_list(unsigned long max_scan, unsigned long nr_anon; unsigned long nr_file; - nr_taken = sc->isolate_pages(SWAP_CLUSTER_MAX, - &page_list, &nr_scan, sc->order, mode, - zone, sc->mem_cgroup, 0, file); - if (scanning_global_lru(sc)) { + nr_taken = isolate_pages_global(SWAP_CLUSTER_MAX, + &page_list, &nr_scan, + sc->order, mode, + zone, 0, file); zone->pages_scanned += nr_scan; if (current_is_kswapd()) __count_zone_vm_events(PGSCAN_KSWAPD, zone, @@ -1166,6 +1159,16 @@ static unsigned long shrink_inactive_list(unsigned long max_scan, else __count_zone_vm_events(PGSCAN_DIRECT, zone, nr_scan); + } else { + nr_taken = mem_cgroup_isolate_pages(SWAP_CLUSTER_MAX, + &page_list, &nr_scan, + sc->order, mode, + zone, sc->mem_cgroup, + 0, file); + /* + * mem_cgroup_isolate_pages() keeps track of + * scanned pages on its own. + */ } if (nr_taken == 0) @@ -1343,16 +1346,23 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone, lru_add_drain(); spin_lock_irq(&zone->lru_lock); - nr_taken = sc->isolate_pages(nr_pages, &l_hold, &pgscanned, sc->order, - ISOLATE_ACTIVE, zone, - sc->mem_cgroup, 1, file); - /* - * zone->pages_scanned is used for detect zone's oom - * mem_cgroup remembers nr_scan by itself. - */ if (scanning_global_lru(sc)) { + nr_taken = isolate_pages_global(nr_pages, &l_hold, + &pgscanned, sc->order, + ISOLATE_ACTIVE, zone, + 1, file); zone->pages_scanned += pgscanned; + } else { + nr_taken = mem_cgroup_isolate_pages(nr_pages, &l_hold, + &pgscanned, sc->order, + ISOLATE_ACTIVE, zone, + sc->mem_cgroup, 1, file); + /* + * mem_cgroup_isolate_pages() keeps track of + * scanned pages on its own. + */ } + reclaim_stat->recent_scanned[file] += nr_taken; __count_zone_vm_events(PGREFILL, zone, pgscanned); @@ -1882,7 +1892,6 @@ unsigned long try_to_free_pages(struct zonelist *zonelist, int order, .swappiness = vm_swappiness, .order = order, .mem_cgroup = NULL, - .isolate_pages = isolate_pages_global, .nodemask = nodemask, }; @@ -1903,7 +1912,6 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, .swappiness = swappiness, .order = 0, .mem_cgroup = mem, - .isolate_pages = mem_cgroup_isolate_pages, }; nodemask_t nm = nodemask_of_node(nid); @@ -1937,7 +1945,6 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont, .swappiness = swappiness, .order = 0, .mem_cgroup = mem_cont, - .isolate_pages = mem_cgroup_isolate_pages, .nodemask = NULL, /* we don't care the placement */ }; @@ -2015,7 +2022,6 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order) .swappiness = vm_swappiness, .order = order, .mem_cgroup = NULL, - .isolate_pages = isolate_pages_global, }; /* * temp_priority is used to remember the scanning priority at which @@ -2394,7 +2400,6 @@ unsigned long shrink_all_memory(unsigned long nr_to_reclaim) .hibernation_mode = 1, .swappiness = vm_swappiness, .order = 0, - .isolate_pages = isolate_pages_global, }; struct zonelist * zonelist = node_zonelist(numa_node_id(), sc.gfp_mask); struct task_struct *p = current; @@ -2579,7 +2584,6 @@ static int __zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order) .gfp_mask = gfp_mask, .swappiness = vm_swappiness, .order = order, - .isolate_pages = isolate_pages_global, }; unsigned long slab_reclaimable; |
