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locking/rtmutex: Remove rtmutex deadlock tester leftovers

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The following debug members of 'struct rtmutex' are unused:

 - save_state: No users

 - file,line: Printed if ::name is NULL. This is only used for non-futex
	      locks so ::name is never NULL

 - magic:     Assigned to NULL by rt_mutex_destroy(), no further usage

Remove them along with unused inline and macro leftovers related to
the long gone deadlock tester.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210326153943.195064296@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior
2021-03-26 16:29:31 +01:00
committed by Ingo Molnar
parent c15380b72d
commit 2d445c3e4a
6 changed files with 3 additions and 19 deletions
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7
kernel/locking/rtmutex-debug.c
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@@ -42,12 +42,7 @@ static void printk_task(struct task_struct *p)
static void printk_lock(struct rt_mutex *lock, int print_owner)
{
if (lock->name)
printk(" [%p] {%s}\n",
lock, lock->name);
else
printk(" [%p] {%s:%d}\n",
lock, lock->file, lock->line);
printk(" [%p] {%s}\n", lock, lock->name);
if (print_owner && rt_mutex_owner(lock)) {
printk(".. ->owner: %p\n", lock->owner);