diff options
Diffstat (limited to 'kernel/printk.c')
| -rw-r--r-- | kernel/printk.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/kernel/printk.c b/kernel/printk.c index 52493474f0a..a30fe33de39 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -862,7 +862,16 @@ int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, cha return -1; } -#ifndef CONFIG_DISABLE_CONSOLE_SUSPEND +int console_suspend_enabled = 1; +EXPORT_SYMBOL(console_suspend_enabled); + +static int __init console_suspend_disable(char *str) +{ + console_suspend_enabled = 0; + return 1; +} +__setup("no_console_suspend", console_suspend_disable); + /** * suspend_console - suspend the console subsystem * @@ -870,6 +879,8 @@ int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, cha */ void suspend_console(void) { + if (!console_suspend_enabled) + return; printk("Suspending console(s)\n"); acquire_console_sem(); console_suspended = 1; @@ -877,10 +888,11 @@ void suspend_console(void) void resume_console(void) { + if (!console_suspend_enabled) + return; console_suspended = 0; release_console_sem(); } -#endif /* CONFIG_DISABLE_CONSOLE_SUSPEND */ /** * acquire_console_sem - lock the console system for exclusive use. |