From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/lib/ratelimit.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/kernel/lib/ratelimit.c b/kernel/lib/ratelimit.c
index d01f471..ce945c1 100644
--- a/kernel/lib/ratelimit.c
+++ b/kernel/lib/ratelimit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ratelimit.c - Do something with rate limit.
*
@@ -5,8 +6,6 @@
*
* 2008-05-01 rewrite the function and use a ratelimit_state data struct as
* parameter. Now every user can use their own standalone ratelimit_state.
- *
- * This file is released under the GPLv2.
*/
#include <linux/ratelimit.h>
@@ -27,10 +26,16 @@
*/
int ___ratelimit(struct ratelimit_state *rs, const char *func)
{
+ /* Paired with WRITE_ONCE() in .proc_handler().
+ * Changing two values seperately could be inconsistent
+ * and some message could be lost. (See: net_ratelimit_state).
+ */
+ int interval = READ_ONCE(rs->interval);
+ int burst = READ_ONCE(rs->burst);
unsigned long flags;
int ret;
- if (!rs->interval)
+ if (!interval)
return 1;
/*
@@ -45,7 +50,7 @@
if (!rs->begin)
rs->begin = jiffies;
- if (time_is_before_jiffies(rs->begin + rs->interval)) {
+ if (time_is_before_jiffies(rs->begin + interval)) {
if (rs->missed) {
if (!(rs->flags & RATELIMIT_MSG_ON_RELEASE)) {
printk_deferred(KERN_WARNING
@@ -57,7 +62,7 @@
rs->begin = jiffies;
rs->printed = 0;
}
- if (rs->burst && rs->burst > rs->printed) {
+ if (burst && burst > rs->printed) {
rs->printed++;
ret = 1;
} else {
--
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