From: Dave Airlie Date: Thu, 31 Jan 2013 03:27:03 +0000 (+1100) Subject: Revert "console: implement lockdep support for console_lock" X-Git-Tag: firefly_0821_release~3680^2~1175^2~1 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ff0d05bf73620eb7dc8aee7423e992ef87870bdf;p=firefly-linux-kernel-4.4.55.git Revert "console: implement lockdep support for console_lock" This reverts commit daee779718a319ff9f83e1ba3339334ac650bb22. I'll requeue this after the console locking fixes, so lockdep is useful again for people until fbcon is fixed. Signed-off-by: Dave Airlie --- diff --git a/kernel/printk.c b/kernel/printk.c index 357f714ddd49..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 @@ -1924,7 +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); @@ -1946,7 +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); @@ -2107,7 +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))