ath10k: don't show MSI registration warnings

[cascardo/linux.git] / mm / memcontrol.c

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 4b5cfb5..d5ff3ce 100644 (file)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -84,26 +84,12 @@ static int really_do_swap_account __initdata = 0;
 #endif
 
 
-/*
- * Statistics for memory cgroup.
- */
-enum mem_cgroup_stat_index {
-       /*
-        * For MEM_CONTAINER_TYPE_ALL, usage = pagecache + rss.
-        */
-       MEM_CGROUP_STAT_CACHE,          /* # of pages charged as cache */
-       MEM_CGROUP_STAT_RSS,            /* # of pages charged as anon rss */
-       MEM_CGROUP_STAT_RSS_HUGE,       /* # of pages charged as anon huge */
-       MEM_CGROUP_STAT_FILE_MAPPED,    /* # of pages charged as file rss */
-       MEM_CGROUP_STAT_SWAP,           /* # of pages, swapped out */
-       MEM_CGROUP_STAT_NSTATS,
-};
-
 static const char * const mem_cgroup_stat_names[] = {
        "cache",
        "rss",
        "rss_huge",
        "mapped_file",
+       "writeback",
        "swap",
 };
 
@@ -2231,7 +2217,7 @@ void __mem_cgroup_end_update_page_stat(struct page *page, unsigned long *flags)
 }
 
 void mem_cgroup_update_page_stat(struct page *page,
-                                enum mem_cgroup_page_stat_item idx, int val)
+                                enum mem_cgroup_stat_index idx, int val)
 {
        struct mem_cgroup *memcg;
        struct page_cgroup *pc = lookup_page_cgroup(page);
@@ -2240,18 +2226,11 @@ void mem_cgroup_update_page_stat(struct page *page,
        if (mem_cgroup_disabled())
                return;
 
+       VM_BUG_ON(!rcu_read_lock_held());
        memcg = pc->mem_cgroup;
        if (unlikely(!memcg || !PageCgroupUsed(pc)))
                return;
 
-       switch (idx) {
-       case MEMCG_NR_FILE_MAPPED:
-               idx = MEM_CGROUP_STAT_FILE_MAPPED;
-               break;
-       default:
-               BUG();
-       }
-
        this_cpu_add(memcg->stat->count[idx], val);
 }
 
@@ -3676,6 +3655,20 @@ void mem_cgroup_split_huge_fixup(struct page *head)
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
+static inline
+void mem_cgroup_move_account_page_stat(struct mem_cgroup *from,
+                                       struct mem_cgroup *to,
+                                       unsigned int nr_pages,
+                                       enum mem_cgroup_stat_index idx)
+{
+       /* Update stat data for mem_cgroup */
+       preempt_disable();
+       WARN_ON_ONCE(from->stat->count[idx] < nr_pages);
+       __this_cpu_add(from->stat->count[idx], -nr_pages);
+       __this_cpu_add(to->stat->count[idx], nr_pages);
+       preempt_enable();
+}
+
 /**
  * mem_cgroup_move_account - move account of the page
  * @page: the page
@@ -3721,13 +3714,14 @@ static int mem_cgroup_move_account(struct page *page,
 
        move_lock_mem_cgroup(from, &flags);
 
-       if (!anon && page_mapped(page)) {
-               /* Update mapped_file data for mem_cgroup */
-               preempt_disable();
-               __this_cpu_dec(from->stat->count[MEM_CGROUP_STAT_FILE_MAPPED]);
-               __this_cpu_inc(to->stat->count[MEM_CGROUP_STAT_FILE_MAPPED]);
-               preempt_enable();
-       }
+       if (!anon && page_mapped(page))
+               mem_cgroup_move_account_page_stat(from, to, nr_pages,
+                       MEM_CGROUP_STAT_FILE_MAPPED);
+
+       if (PageWriteback(page))
+               mem_cgroup_move_account_page_stat(from, to, nr_pages,
+                       MEM_CGROUP_STAT_WRITEBACK);
+
        mem_cgroup_charge_statistics(from, page, anon, -nr_pages);
 
        /* caller should have done css_get */
@@ -4967,7 +4961,7 @@ static int memcg_update_kmem_limit(struct cgroup_subsys_state *css, u64 val)
         */
        mutex_lock(&memcg_create_mutex);
        mutex_lock(&set_limit_mutex);
-       if (!memcg->kmem_account_flags && val != RESOURCE_MAX) {
+       if (!memcg->kmem_account_flags && val != RES_COUNTER_MAX) {
                if (cgroup_task_count(css->cgroup) || memcg_has_children(memcg)) {
                        ret = -EBUSY;
                        goto out;
@@ -4977,7 +4971,7 @@ static int memcg_update_kmem_limit(struct cgroup_subsys_state *css, u64 val)
 
                ret = memcg_update_cache_sizes(memcg);
                if (ret) {
-                       res_counter_set_limit(&memcg->kmem, RESOURCE_MAX);
+                       res_counter_set_limit(&memcg->kmem, RES_COUNTER_MAX);
                        goto out;
                }
                static_key_slow_inc(&memcg_kmem_enabled_key);