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/mm/frontswap.c | 19 +++++++++----------
1 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/kernel/mm/frontswap.c b/kernel/mm/frontswap.c
index 157e5bf..2183a56 100644
--- a/kernel/mm/frontswap.c
+++ b/kernel/mm/frontswap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Frontswap frontend
*
@@ -7,8 +8,6 @@
*
* Copyright (C) 2009-2012 Oracle Corp. All rights reserved.
* Author: Dan Magenheimer
- *
- * This work is licensed under the terms of the GNU GPL, version 2.
*/
#include <linux/mman.h>
@@ -62,16 +61,16 @@
static u64 frontswap_invalidates;
static inline void inc_frontswap_loads(void) {
- frontswap_loads++;
+ data_race(frontswap_loads++);
}
static inline void inc_frontswap_succ_stores(void) {
- frontswap_succ_stores++;
+ data_race(frontswap_succ_stores++);
}
static inline void inc_frontswap_failed_stores(void) {
- frontswap_failed_stores++;
+ data_race(frontswap_failed_stores++);
}
static inline void inc_frontswap_invalidates(void) {
- frontswap_invalidates++;
+ data_race(frontswap_invalidates++);
}
#else
static inline void inc_frontswap_loads(void) { }
@@ -88,7 +87,7 @@
*
* This would not guards us against the user deciding to call swapoff right as
* we are calling the backend to initialize (so swapon is in action).
- * Fortunatly for us, the swapon_mutex has been taked by the callee so we are
+ * Fortunately for us, the swapon_mutex has been taken by the callee so we are
* OK. The other scenario where calls to frontswap_store (called via
* swap_writepage) is racing with frontswap_invalidate_area (called via
* swapoff) is again guarded by the swap subsystem.
@@ -414,8 +413,8 @@
}
/*
- * Used to check if it's necessory and feasible to unuse pages.
- * Return 1 when nothing to do, 0 when need to shink pages,
+ * Used to check if it's necessary and feasible to unuse pages.
+ * Return 1 when nothing to do, 0 when need to shrink pages,
* error code when there is an error.
*/
static int __frontswap_shrink(unsigned long target_pages,
@@ -447,7 +446,7 @@
void frontswap_shrink(unsigned long target_pages)
{
unsigned long pages_to_unuse = 0;
- int uninitialized_var(type), ret;
+ int type, ret;
/*
* we don't want to hold swap_lock while doing a very
--
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