diff options
Diffstat (limited to 'kernel/printk.c')
| -rw-r--r-- | kernel/printk.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/printk.c b/kernel/printk.c index 36231525e22f..5b87a0ce0895 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -39,6 +39,7 @@ #include <linux/syslog.h> #include <linux/cpu.h> #include <linux/notifier.h> +#include <trace/kernel.h> #include <linux/rculist.h> #include <asm/uaccess.h> @@ -67,6 +68,7 @@ int console_printk[4] = { MINIMUM_CONSOLE_LOGLEVEL, /* minimum_console_loglevel */ DEFAULT_CONSOLE_LOGLEVEL, /* default_console_loglevel */ }; +EXPORT_SYMBOL_GPL(console_printk); /* * Low level drivers may need that to know if they can schedule in @@ -136,6 +138,9 @@ EXPORT_SYMBOL(console_set_on_cmdline); /* Flag: console code may call schedule() */ static int console_may_schedule; +DEFINE_TRACE(kernel_printk); +DEFINE_TRACE(kernel_vprintk); + #ifdef CONFIG_PRINTK static char __log_buf[__LOG_BUF_LEN]; @@ -650,6 +655,7 @@ asmlinkage int printk(const char *fmt, ...) } #endif va_start(args, fmt); + trace_kernel_printk(_RET_IP_); r = vprintk(fmt, args); va_end(args); @@ -773,6 +779,7 @@ asmlinkage int vprintk(const char *fmt, va_list args) printed_len += vscnprintf(printk_buf + printed_len, sizeof(printk_buf) - printed_len, fmt, args); + trace_kernel_vprintk(_RET_IP_, printk_buf, printed_len); p = printk_buf; |