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-rw-r--r--mm/memcontrol.c89
1 files changed, 39 insertions, 50 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 9bf8a84bcaa..41c1b393fef 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -676,9 +676,11 @@ static void disarm_static_keys(struct mem_cgroup *memcg)
static void drain_all_stock_async(struct mem_cgroup *memcg);
static struct mem_cgroup_per_zone *
-mem_cgroup_zoneinfo(struct mem_cgroup *memcg, int nid, int zid)
+mem_cgroup_zone_zoneinfo(struct mem_cgroup *memcg, struct zone *zone)
{
- VM_BUG_ON((unsigned)nid >= nr_node_ids);
+ int nid = zone_to_nid(zone);
+ int zid = zone_idx(zone);
+
return &memcg->nodeinfo[nid]->zoneinfo[zid];
}
@@ -688,12 +690,12 @@ struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *memcg)
}
static struct mem_cgroup_per_zone *
-page_cgroup_zoneinfo(struct mem_cgroup *memcg, struct page *page)
+mem_cgroup_page_zoneinfo(struct mem_cgroup *memcg, struct page *page)
{
int nid = page_to_nid(page);
int zid = page_zonenum(page);
- return mem_cgroup_zoneinfo(memcg, nid, zid);
+ return &memcg->nodeinfo[nid]->zoneinfo[zid];
}
static struct mem_cgroup_tree_per_zone *
@@ -772,16 +774,14 @@ static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
unsigned long long excess;
struct mem_cgroup_per_zone *mz;
struct mem_cgroup_tree_per_zone *mctz;
- int nid = page_to_nid(page);
- int zid = page_zonenum(page);
- mctz = soft_limit_tree_from_page(page);
+ mctz = soft_limit_tree_from_page(page);
/*
* Necessary to update all ancestors when hierarchy is used.
* because their event counter is not touched.
*/
for (; memcg; memcg = parent_mem_cgroup(memcg)) {
- mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+ mz = mem_cgroup_page_zoneinfo(memcg, page);
excess = res_counter_soft_limit_excess(&memcg->res);
/*
* We have to update the tree if mz is on RB-tree or
@@ -804,14 +804,14 @@ static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
static void mem_cgroup_remove_from_trees(struct mem_cgroup *memcg)
{
- int node, zone;
- struct mem_cgroup_per_zone *mz;
struct mem_cgroup_tree_per_zone *mctz;
+ struct mem_cgroup_per_zone *mz;
+ int nid, zid;
- for_each_node(node) {
- for (zone = 0; zone < MAX_NR_ZONES; zone++) {
- mz = mem_cgroup_zoneinfo(memcg, node, zone);
- mctz = soft_limit_tree_node_zone(node, zone);
+ for_each_node(nid) {
+ for (zid = 0; zid < MAX_NR_ZONES; zid++) {
+ mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
+ mctz = soft_limit_tree_node_zone(nid, zid);
mem_cgroup_remove_exceeded(memcg, mz, mctz);
}
}
@@ -946,8 +946,7 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *memcg,
__this_cpu_add(memcg->stat->nr_page_events, nr_pages);
}
-unsigned long
-mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
+unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
{
struct mem_cgroup_per_zone *mz;
@@ -955,46 +954,38 @@ mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
return mz->lru_size[lru];
}
-static unsigned long
-mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid,
- unsigned int lru_mask)
-{
- struct mem_cgroup_per_zone *mz;
- enum lru_list lru;
- unsigned long ret = 0;
-
- mz = mem_cgroup_zoneinfo(memcg, nid, zid);
-
- for_each_lru(lru) {
- if (BIT(lru) & lru_mask)
- ret += mz->lru_size[lru];
- }
- return ret;
-}
-
-static unsigned long
-mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
- int nid, unsigned int lru_mask)
+static unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
+ int nid,
+ unsigned int lru_mask)
{
- u64 total = 0;
+ unsigned long nr = 0;
int zid;
- for (zid = 0; zid < MAX_NR_ZONES; zid++)
- total += mem_cgroup_zone_nr_lru_pages(memcg,
- nid, zid, lru_mask);
+ VM_BUG_ON((unsigned)nid >= nr_node_ids);
+
+ for (zid = 0; zid < MAX_NR_ZONES; zid++) {
+ struct mem_cgroup_per_zone *mz;
+ enum lru_list lru;
- return total;
+ for_each_lru(lru) {
+ if (!(BIT(lru) & lru_mask))
+ continue;
+ mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
+ nr += mz->lru_size[lru];
+ }
+ }
+ return nr;
}
static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg,
unsigned int lru_mask)
{
+ unsigned long nr = 0;
int nid;
- u64 total = 0;
for_each_node_state(nid, N_MEMORY)
- total += mem_cgroup_node_nr_lru_pages(memcg, nid, lru_mask);
- return total;
+ nr += mem_cgroup_node_nr_lru_pages(memcg, nid, lru_mask);
+ return nr;
}
static bool mem_cgroup_event_ratelimit(struct mem_cgroup *memcg,
@@ -1242,11 +1233,9 @@ struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
int uninitialized_var(seq);
if (reclaim) {
- int nid = zone_to_nid(reclaim->zone);
- int zid = zone_idx(reclaim->zone);
struct mem_cgroup_per_zone *mz;
- mz = mem_cgroup_zoneinfo(root, nid, zid);
+ mz = mem_cgroup_zone_zoneinfo(root, reclaim->zone);
iter = &mz->reclaim_iter[reclaim->priority];
if (prev && reclaim->generation != iter->generation) {
iter->last_visited = NULL;
@@ -1353,7 +1342,7 @@ struct lruvec *mem_cgroup_zone_lruvec(struct zone *zone,
goto out;
}
- mz = mem_cgroup_zoneinfo(memcg, zone_to_nid(zone), zone_idx(zone));
+ mz = mem_cgroup_zone_zoneinfo(memcg, zone);
lruvec = &mz->lruvec;
out:
/*
@@ -1412,7 +1401,7 @@ struct lruvec *mem_cgroup_page_lruvec(struct page *page, struct zone *zone)
if (!PageLRU(page) && !PageCgroupUsed(pc) && memcg != root_mem_cgroup)
pc->mem_cgroup = memcg = root_mem_cgroup;
- mz = page_cgroup_zoneinfo(memcg, page);
+ mz = mem_cgroup_page_zoneinfo(memcg, page);
lruvec = &mz->lruvec;
out:
/*
@@ -5305,7 +5294,7 @@ static int memcg_stat_show(struct seq_file *m, void *v)
for_each_online_node(nid)
for (zid = 0; zid < MAX_NR_ZONES; zid++) {
- mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+ mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
rstat = &mz->lruvec.reclaim_stat;
recent_rotated[0] += rstat->recent_rotated[0];
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-21 09:41:35 +0000