X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=kernel%2Fprintk.c;h=267ce780abe8dd0c18b3c6f1d93f3974b75697ed;hb=ff0d05bf73620eb7dc8aee7423e992ef87870bdf;hp=19c0d7bcf24a77e0f6de246a30fab029cf3a30cc;hpb=6ed1914982e9cd46e37a6a6aa9e1fd1de6a50bf7;p=deliverable%2Flinux.git

diff --git a/kernel/printk.c b/kernel/printk.c
index 19c0d7bcf24a..267ce780abe8 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -87,12 +87,6 @@ static DEFINE_SEMAPHORE(console_sem);
 struct console *console_drivers;
 EXPORT_SYMBOL_GPL(console_drivers);
 
-#ifdef CONFIG_LOCKDEP
-static struct lockdep_map console_lock_dep_map = {
-	.name = "console_lock"
-};
-#endif
-
 /*
  * This is used for debugging the mess that is the VT code by
  * keeping track if we have the console semaphore held. It's
@@ -870,10 +864,11 @@ static size_t print_time(u64 ts, char *buf)
 	if (!printk_time)
 		return 0;
 
+	rem_nsec = do_div(ts, 1000000000);
+
 	if (!buf)
-		return 15;
+		return snprintf(NULL, 0, "[%5lu.000000] ", (unsigned long)ts);
 
-	rem_nsec = do_div(ts, 1000000000);
 	return sprintf(buf, "[%5lu.%06lu] ",
 		       (unsigned long)ts, rem_nsec / 1000);
 }
@@ -1923,7 +1918,6 @@ void console_lock(void)
 		return;
 	console_locked = 1;
 	console_may_schedule = 1;
-	mutex_acquire(&console_lock_dep_map, 0, 0, _RET_IP_);
 }
 EXPORT_SYMBOL(console_lock);
 
@@ -1945,7 +1939,6 @@ int console_trylock(void)
 	}
 	console_locked = 1;
 	console_may_schedule = 0;
-	mutex_acquire(&console_lock_dep_map, 0, 1, _RET_IP_);
 	return 1;
 }
 EXPORT_SYMBOL(console_trylock);
@@ -2106,7 +2099,6 @@ skip:
 		local_irq_restore(flags);
 	}
 	console_locked = 0;
-	mutex_release(&console_lock_dep_map, 1, _RET_IP_);
 
 	/* Release the exclusive_console once it is used */
 	if (unlikely(exclusive_console))