summaryrefslogtreecommitdiff
path: root/include/linux/page_counter.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/page_counter.h')
-rw-r--r--include/linux/page_counter.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/page_counter.h b/include/linux/page_counter.h
index 94029dad9317..7902a727d3b6 100644
--- a/include/linux/page_counter.h
+++ b/include/linux/page_counter.h
@@ -9,8 +9,14 @@
struct page_counter {
atomic_long_t usage;
unsigned long max;
+ unsigned long low;
struct page_counter *parent;
+ /* effective memory.low and memory.low usage tracking */
+ unsigned long elow;
+ atomic_long_t low_usage;
+ atomic_long_t children_low_usage;
+
/* legacy */
unsigned long watermark;
unsigned long failcnt;
@@ -42,6 +48,7 @@ bool page_counter_try_charge(struct page_counter *counter,
struct page_counter **fail);
void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages);
int page_counter_set_max(struct page_counter *counter, unsigned long nr_pages);
+void page_counter_set_low(struct page_counter *counter, unsigned long nr_pages);
int page_counter_memparse(const char *buf, const char *max,
unsigned long *nr_pages);