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locking/lockdep: Reduce header dependencies in <linux/debug_locks.h> 

The inclusion of printk.h leads to a circular dependency if spinlock_t is
based on rtmutexes on RT enabled kernels.

Include only atomic.h (xchg()) and cache.h (__read_mostly) which is all
what debug_locks.h requires.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210815211303.484161136@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior 2021-08-15 23:28:17 +02:00 committed by Ingo Molnar
parent a403abbdc7
commit cbcebf5bd3
1 changed files with 1 additions and 2 deletions
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3
include/linux/debug_locks.h
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@ -3,8 +3,7 @@
#define __LINUX_DEBUG_LOCKING_H
#include <linux/atomic.h>
#include <linux/bug.h>
#include <linux/printk.h>
#include <linux/cache.h>
struct task_struct;