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Subject[PATCH] spinlock: Get rid of spin_can_lock()
Date
... it has no users and we already have the the regular spin_is_lock()
call anyway -- although iirc this was going to be different
than the simple negation for lock elision implementations. Lets drop it.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
---
include/linux/spinlock.h | 11 -----------
1 file changed, 11 deletions(-)

diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 47dd0cebd204..047c6f6c3268 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -264,12 +264,6 @@ static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock)
1 : ({ local_irq_restore(flags); 0; }); \
})

-/**
- * raw_spin_can_lock - would raw_spin_trylock() succeed?
- * @lock: the spinlock in question.
- */
-#define raw_spin_can_lock(lock) (!raw_spin_is_locked(lock))
-
/* Include rwlock functions */
#include <linux/rwlock.h>

@@ -392,11 +386,6 @@ static __always_inline int spin_is_contended(spinlock_t *lock)
return raw_spin_is_contended(&lock->rlock);
}

-static __always_inline int spin_can_lock(spinlock_t *lock)
-{
- return raw_spin_can_lock(&lock->rlock);
-}
-
#define assert_spin_locked(lock) assert_raw_spin_locked(&(lock)->rlock)

/*
--
2.8.2
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