[Patch RFC 34/37] printk: Make console_sem a semaphore not a pseudomutex

[Thomas Gleixner]

It needs to be investigated whether it can be replaced by a real
mutex, but that needs more thought and investigation.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
 kernel/printk.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6-tip/kernel/printk.c
===================================================================
--- linux-2.6-tip.orig/kernel/printk.c
+++ linux-2.6-tip/kernel/printk.c
@@ -73,7 +73,7 @@ EXPORT_SYMBOL(oops_in_progress);
  * provides serialisation for access to the entire console
  * driver system.
  */
-static DECLARE_MUTEX(console_sem);
+static DEFINE_SEMAPHORE(console_sem);
 struct console *console_drivers;
 EXPORT_SYMBOL_GPL(console_drivers);
 
@@ -529,7 +529,7 @@ static void zap_locks(void)
 	/* If a crash is occurring, make sure we can't deadlock */
 	spin_lock_init(&logbuf_lock);
 	/* And make sure that we print immediately */
-	init_MUTEX(&console_sem);
+	semaphore_init(&console_sem);
 }
 
 #if defined(CONFIG_PRINTK_TIME)


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