Merge branch 'master' into next

Conflicts:
	security/smack/smack_lsm.c

Verified and added fix by Stephen Rothwell <sfr@canb.auug.org.au>
Ok'd by Casey Schaufler <casey@schaufler-ca.com>

Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 8 insertions, 10 deletions

diff --git a/kernel/printk.c b/kernel/printk.c
index 0cecba059666..f64b8997fc76 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -43,12 +43,6 @@
 #include <asm/uaccess.h>
 
 /*
- * for_each_console() allows you to iterate on each console
- */
-#define for_each_console(con) \
-	for (con = console_drivers; con != NULL; con = con->next)
-
-/*
  * Architectures can override it:
  */
 void asmlinkage __attribute__((weak)) early_printk(const char *fmt, ...)
@@ -1080,21 +1074,23 @@ static DEFINE_PER_CPU(int, printk_pending);
 
 void printk_tick(void)
 {
-	if (__get_cpu_var(printk_pending)) {
-		__get_cpu_var(printk_pending) = 0;
+	if (__this_cpu_read(printk_pending)) {
+		__this_cpu_write(printk_pending, 0);
 		wake_up_interruptible(&log_wait);
 	}
 }
 
 int printk_needs_cpu(int cpu)
 {
-	return per_cpu(printk_pending, cpu);
+	if (cpu_is_offline(cpu))
+		printk_tick();
+	return __this_cpu_read(printk_pending);
 }
 
 void wake_up_klogd(void)
 {
 	if (waitqueue_active(&log_wait))
-		__raw_get_cpu_var(printk_pending) = 1;
+		this_cpu_write(printk_pending, 1);
 }
 
 /**
@@ -1363,6 +1359,7 @@ void register_console(struct console *newcon)
 		spin_unlock_irqrestore(&logbuf_lock, flags);
 	}
 	release_console_sem();
+	console_sysfs_notify();
 
 	/*
 	 * By unregistering the bootconsoles after we enable the real console
@@ -1421,6 +1418,7 @@ int unregister_console(struct console *console)
 		console_drivers->flags |= CON_CONSDEV;
 
 	release_console_sem();
+	console_sysfs_notify();
 	return res;
 }
 EXPORT_SYMBOL(unregister_console);