#include <linux/smp.h>
#include <linux/cpumask.h>
#include <linux/printk.h>
-#include <linux/console.h>
#include <linux/kprobes.h>
-#include <linux/delay.h>
#include "internal.h"
return vprintk_default(fmt, args);
}
EXPORT_SYMBOL(vprintk);
-
-/**
- * try_block_console_kthreads() - Try to block console kthreads and
- * make the global console_lock() avaialble
- *
- * @timeout_ms: The maximum time (in ms) to wait.
- *
- * Prevent console kthreads from starting processing new messages. Wait
- * until the global console_lock() become available.
- *
- * Context: Can be called in any context.
- */
-void try_block_console_kthreads(int timeout_ms)
-{
- block_console_kthreads = true;
-
- /* Do not wait when the console lock could not be safely taken. */
- if (this_cpu_read(printk_context) || in_nmi())
- return;
-
- while (timeout_ms > 0) {
- if (console_trylock()) {
- console_unlock();
- return;
- }
-
- udelay(1000);
- timeout_ms -= 1;
- }
-}