diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-08-14 12:19:59 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-08-14 12:19:59 +0200 |
commit | 8d7ccaa545490cdffdfaff0842436a8dd85cf47b (patch) | |
tree | 8129b5907161bc6ae26deb3645ce1e280c5e1f51 /kernel/printk.c | |
parent | b2139aa0eec330c711c5a279db361e5ef1178e78 (diff) | |
parent | 30a2f3c60a84092c8084dfe788b710f8d0768cd4 (diff) |
Merge commit 'v2.6.27-rc3' into x86/prototypes
Conflicts:
include/asm-x86/dma-mapping.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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); |