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authorRoman Gushchin <guro@fb.com>2018-06-08 03:06:18 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-08 03:34:35 +0300
commitbbec2e15170aae3e084d7d9afc730aeebe01b654 (patch)
tree60fae9998aa86f7f004435b133ae55e48a0e2477 /include/linux/page_counter.h
parent1c4bc43ddfd52cbe5a08bb86ae636f55d2799424 (diff)
downloadlinux-bbec2e15170aae3e084d7d9afc730aeebe01b654.tar.xz
mm: rename page_counter's count/limit into usage/max
This patch renames struct page_counter fields: count -> usage limit -> max and the corresponding functions: page_counter_limit() -> page_counter_set_max() mem_cgroup_get_limit() -> mem_cgroup_get_max() mem_cgroup_resize_limit() -> mem_cgroup_resize_max() memcg_update_kmem_limit() -> memcg_update_kmem_max() memcg_update_tcp_limit() -> memcg_update_tcp_max() The idea behind this renaming is to have the direct matching between memory cgroup knobs (low, high, max) and page_counters API. This is pure renaming, this patch doesn't bring any functional change. Link: http://lkml.kernel.org/r/20180405185921.4942-1-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/page_counter.h')
-rw-r--r--include/linux/page_counter.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/page_counter.h b/include/linux/page_counter.h
index c15ab80ad32d..94029dad9317 100644
--- a/include/linux/page_counter.h
+++ b/include/linux/page_counter.h
@@ -7,8 +7,8 @@
#include <asm/page.h>
struct page_counter {
- atomic_long_t count;
- unsigned long limit;
+ atomic_long_t usage;
+ unsigned long max;
struct page_counter *parent;
/* legacy */
@@ -25,14 +25,14 @@ struct page_counter {
static inline void page_counter_init(struct page_counter *counter,
struct page_counter *parent)
{
- atomic_long_set(&counter->count, 0);
- counter->limit = PAGE_COUNTER_MAX;
+ atomic_long_set(&counter->usage, 0);
+ counter->max = PAGE_COUNTER_MAX;
counter->parent = parent;
}
static inline unsigned long page_counter_read(struct page_counter *counter)
{
- return atomic_long_read(&counter->count);
+ return atomic_long_read(&counter->usage);
}
void page_counter_cancel(struct page_counter *counter, unsigned long nr_pages);
@@ -41,7 +41,7 @@ bool page_counter_try_charge(struct page_counter *counter,
unsigned long nr_pages,
struct page_counter **fail);
void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages);
-int page_counter_limit(struct page_counter *counter, unsigned long limit);
+int page_counter_set_max(struct page_counter *counter, unsigned long nr_pages);
int page_counter_memparse(const char *buf, const char *max,
unsigned long *nr_pages);