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Revert "console: implement lockdep support for console_lock" 

This reverts commit daee779718.

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 <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2013-01-31 14:27:03 +11:00
parent 2e51b231a8
commit ff0d05bf73
1 changed files with 0 additions and 9 deletions
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9
kernel/printk.c
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@ -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))