From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/include/linux/page_counter.h | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/kernel/include/linux/page_counter.h b/kernel/include/linux/page_counter.h
index bab7e57..85bd413 100644
--- a/kernel/include/linux/page_counter.h
+++ b/kernel/include/linux/page_counter.h
@@ -10,6 +10,7 @@
atomic_long_t usage;
unsigned long min;
unsigned long low;
+ unsigned long high;
unsigned long max;
struct page_counter *parent;
@@ -55,6 +56,13 @@
void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages);
void page_counter_set_min(struct page_counter *counter, unsigned long nr_pages);
void page_counter_set_low(struct page_counter *counter, unsigned long nr_pages);
+
+static inline void page_counter_set_high(struct page_counter *counter,
+ unsigned long nr_pages)
+{
+ WRITE_ONCE(counter->high, nr_pages);
+}
+
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);
--
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