mm: memcontrol: use casts when converting enums

Use casts when converting enum types to prevent clang warnings such
as:
  warning: implicit conversion from enumeration type 'enum node_stat_item'
  to different enumeration type 'enum memcg_stat_item' [-Wenum-conversion]

Signed-off-by: Stefan Agner <stefan@agner.ch>

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 3914e3dd61680a9bc8814d9b9a386c59611eca81..aac1b79897898677fd66e17fd89595503416363d 100644 (file)
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -576,7 +576,7 @@ static inline void __mod_lruvec_state(struct lruvec *lruvec,
        if (mem_cgroup_disabled())
                return;
        pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
-       __mod_memcg_state(pn->memcg, idx, val);
+       __mod_memcg_state(pn->memcg, (enum memcg_stat_item)idx, val);
        __this_cpu_add(pn->lruvec_stat->count[idx], val);
 }
 
@@ -589,7 +589,7 @@ static inline void mod_lruvec_state(struct lruvec *lruvec,
        if (mem_cgroup_disabled())
                return;
        pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
-       mod_memcg_state(pn->memcg, idx, val);
+       mod_memcg_state(pn->memcg, (enum memcg_stat_item)idx, val);
        this_cpu_add(pn->lruvec_stat->count[idx], val);
 }
 
@@ -601,7 +601,7 @@ static inline void __mod_lruvec_page_state(struct page *page,
        __mod_node_page_state(page_pgdat(page), idx, val);
        if (mem_cgroup_disabled() || !page->mem_cgroup)
                return;
-       __mod_memcg_state(page->mem_cgroup, idx, val);
+       __mod_memcg_state(page->mem_cgroup, (enum memcg_stat_item)idx, val);
        pn = page->mem_cgroup->nodeinfo[page_to_nid(page)];
        __this_cpu_add(pn->lruvec_stat->count[idx], val);
 }
@@ -614,7 +614,7 @@ static inline void mod_lruvec_page_state(struct page *page,
        mod_node_page_state(page_pgdat(page), idx, val);
        if (mem_cgroup_disabled() || !page->mem_cgroup)
                return;
-       mod_memcg_state(page->mem_cgroup, idx, val);
+       mod_memcg_state(page->mem_cgroup, (enum memcg_stat_item)idx, val);
        pn = page->mem_cgroup->nodeinfo[page_to_nid(page)];
        this_cpu_add(pn->lruvec_stat->count[idx], val);
 }
@@ -635,7 +635,7 @@ static inline void count_memcg_page_event(struct page *page,
                                          enum memcg_stat_item idx)
 {
        if (page->mem_cgroup)
-               count_memcg_events(page->mem_cgroup, idx, 1);
+               count_memcg_events(page->mem_cgroup, (enum vm_event_item)idx, 1);
 }
 
 static inline void count_memcg_event_mm(struct mm_struct *mm,