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authorMatthias Kaehlcke <mka@chromium.org>2017-09-06 16:22:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-06 17:27:27 -0700
commit04fecbf51b3cb79a628d50b65797c4866342b8d2 (patch)
tree9ebd9f30e608a2add61ddee13da25d3273eb55db /include
parent67e5ed969944d7c6d93f658a188240cf60c49f71 (diff)
mm: memcontrol: use int for event/state parameter in several functions
Several functions use an enum type as parameter for an event/state, but are called in some locations with an argument of a different enum type. Adjust the interface of these functions to reality by changing the parameter to int. This fixes a ton of enum-conversion warnings that are generated when building the kernel with clang. [mka@chromium.org: also change parameter type of inc/dec/mod_memcg_page_state()] Link: http://lkml.kernel.org/r/20170728213442.93823-1-mka@chromium.org Link: http://lkml.kernel.org/r/20170727211004.34435-1-mka@chromium.org Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Doug Anderson <dianders@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/memcontrol.h52
1 files changed, 32 insertions, 20 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 9b15a4bcfa77..69966c461d1c 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -488,8 +488,9 @@ struct mem_cgroup *lock_page_memcg(struct page *page);
void __unlock_page_memcg(struct mem_cgroup *memcg);
void unlock_page_memcg(struct page *page);
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline unsigned long memcg_page_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+ int idx)
{
long val = 0;
int cpu;
@@ -503,15 +504,17 @@ static inline unsigned long memcg_page_state(struct mem_cgroup *memcg,
return val;
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void __mod_memcg_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx, int val)
+ int idx, int val)
{
if (!mem_cgroup_disabled())
__this_cpu_add(memcg->stat->count[idx], val);
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void mod_memcg_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx, int val)
+ int idx, int val)
{
if (!mem_cgroup_disabled())
this_cpu_add(memcg->stat->count[idx], val);
@@ -535,14 +538,14 @@ static inline void mod_memcg_state(struct mem_cgroup *memcg,
* Kernel pages are an exception to this, since they'll never move.
*/
static inline void __mod_memcg_page_state(struct page *page,
- enum memcg_stat_item idx, int val)
+ int idx, int val)
{
if (page->mem_cgroup)
__mod_memcg_state(page->mem_cgroup, idx, val);
}
static inline void mod_memcg_page_state(struct page *page,
- enum memcg_stat_item idx, int val)
+ int idx, int val)
{
if (page->mem_cgroup)
mod_memcg_state(page->mem_cgroup, idx, val);
@@ -632,8 +635,9 @@ static inline void count_memcg_events(struct mem_cgroup *memcg,
this_cpu_add(memcg->stat->events[idx], count);
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void count_memcg_page_event(struct page *page,
- enum memcg_stat_item idx)
+ int idx)
{
if (page->mem_cgroup)
count_memcg_events(page->mem_cgroup, idx, 1);
@@ -846,31 +850,31 @@ static inline bool mem_cgroup_oom_synchronize(bool wait)
}
static inline unsigned long memcg_page_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+ int idx)
{
return 0;
}
static inline void __mod_memcg_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx,
+ int idx,
int nr)
{
}
static inline void mod_memcg_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx,
+ int idx,
int nr)
{
}
static inline void __mod_memcg_page_state(struct page *page,
- enum memcg_stat_item idx,
+ int idx,
int nr)
{
}
static inline void mod_memcg_page_state(struct page *page,
- enum memcg_stat_item idx,
+ int idx,
int nr)
{
}
@@ -924,7 +928,7 @@ static inline void count_memcg_events(struct mem_cgroup *memcg,
}
static inline void count_memcg_page_event(struct page *page,
- enum memcg_stat_item idx)
+ int idx)
{
}
@@ -934,26 +938,30 @@ void count_memcg_event_mm(struct mm_struct *mm, enum vm_event_item idx)
}
#endif /* CONFIG_MEMCG */
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void __inc_memcg_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+ int idx)
{
__mod_memcg_state(memcg, idx, 1);
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void __dec_memcg_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+ int idx)
{
__mod_memcg_state(memcg, idx, -1);
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void __inc_memcg_page_state(struct page *page,
- enum memcg_stat_item idx)
+ int idx)
{
__mod_memcg_page_state(page, idx, 1);
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void __dec_memcg_page_state(struct page *page,
- enum memcg_stat_item idx)
+ int idx)
{
__mod_memcg_page_state(page, idx, -1);
}
@@ -982,26 +990,30 @@ static inline void __dec_lruvec_page_state(struct page *page,
__mod_lruvec_page_state(page, idx, -1);
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void inc_memcg_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+ int idx)
{
mod_memcg_state(memcg, idx, 1);
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void dec_memcg_state(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+ int idx)
{
mod_memcg_state(memcg, idx, -1);
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void inc_memcg_page_state(struct page *page,
- enum memcg_stat_item idx)
+ int idx)
{
mod_memcg_page_state(page, idx, 1);
}
+/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void dec_memcg_page_state(struct page *page,
- enum memcg_stat_item idx)
+ int idx)
{
mod_memcg_page_state(page, idx, -1);
}