diff options
Diffstat (limited to 'kernel/printk/printk_safe.c')
-rw-r--r-- | kernel/printk/printk_safe.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/kernel/printk/printk_safe.c b/kernel/printk/printk_safe.c index caac4de1ea59..ef0f9a2044da 100644 --- a/kernel/printk/printk_safe.c +++ b/kernel/printk/printk_safe.c @@ -8,9 +8,7 @@ #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" @@ -52,33 +50,3 @@ asmlinkage int vprintk(const char *fmt, va_list args) 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; - } -} |