diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-10-02 10:21:26 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-10-02 10:21:26 +0200 |
commit | d6d5aeb661fc14655c417f3582ae7ec52985d2a8 (patch) | |
tree | 5e168da05cb28d10b5accc74718428cfd5527201 /kernel/printk.c | |
parent | 7e6e178ab1548c8d894a77593e757acf4510b8ba (diff) | |
parent | 94aca1dac6f6d21f4b07e4864baf7768cabcc6e7 (diff) |
Merge commit 'v2.6.27-rc8' into genirq
Diffstat (limited to 'kernel/printk.c')
-rw-r--r-- | kernel/printk.c | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/kernel/printk.c b/kernel/printk.c index 07ad9e7f7a6..b51b1567bb5 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -933,7 +933,7 @@ void suspend_console(void) { if (!console_suspend_enabled) return; - printk("Suspending console(s)\n"); + printk("Suspending console(s) (use no_console_suspend to debug)\n"); acquire_console_sem(); console_suspended = 1; } @@ -1308,29 +1308,18 @@ void tty_write_message(struct tty_struct *tty, char *msg) } #if defined CONFIG_PRINTK + /* * printk rate limiting, lifted from the networking subsystem. * - * This enforces a rate limit: not more than one kernel message - * every printk_ratelimit_jiffies to make a denial-of-service - * attack impossible. + * This enforces a rate limit: not more than 10 kernel messages + * every 5s to make a denial-of-service attack impossible. */ -int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst) -{ - return __ratelimit(ratelimit_jiffies, ratelimit_burst); -} -EXPORT_SYMBOL(__printk_ratelimit); - -/* minimum time in jiffies between messages */ -int printk_ratelimit_jiffies = 5 * HZ; - -/* number of messages we send before ratelimiting */ -int printk_ratelimit_burst = 10; +DEFINE_RATELIMIT_STATE(printk_ratelimit_state, 5 * HZ, 10); int printk_ratelimit(void) { - return __printk_ratelimit(printk_ratelimit_jiffies, - printk_ratelimit_burst); + return __ratelimit(&printk_ratelimit_state); } EXPORT_SYMBOL(printk_ratelimit); |