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locking/spinlocks: Remove the unused spin_lock_bh_nested() API

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The spin_lock_bh_nested() API is defined but is not used anywhere
in the kernel. So all spin_lock_bh_nested() and related APIs are
now removed.

Signed-off-by: Waiman Long <longman@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1483975612-16447-1-git-send-email-longman@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Waiman Long
2017-01-09 10:26:52 -05:00
committed by Ingo Molnar
parent ba836a6f5a
commit 607904c357
4 changed files with 0 additions and 19 deletions
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8
include/linux/spinlock.h
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@@ -180,8 +180,6 @@ static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock)
#ifdef CONFIG_DEBUG_LOCK_ALLOC
# define raw_spin_lock_nested(lock, subclass) \
_raw_spin_lock_nested(lock, subclass)
# define raw_spin_lock_bh_nested(lock, subclass) \
_raw_spin_lock_bh_nested(lock, subclass)
# define raw_spin_lock_nest_lock(lock, nest_lock) \
do { \
@@ -197,7 +195,6 @@ static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock)
# define raw_spin_lock_nested(lock, subclass) \
_raw_spin_lock(((void)(subclass), (lock)))
# define raw_spin_lock_nest_lock(lock, nest_lock) _raw_spin_lock(lock)
# define raw_spin_lock_bh_nested(lock, subclass) _raw_spin_lock_bh(lock)
#endif
#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
@@ -317,11 +314,6 @@ do { \
raw_spin_lock_nested(spinlock_check(lock), subclass); \
} while (0)
#define spin_lock_bh_nested(lock, subclass) \
do { \
raw_spin_lock_bh_nested(spinlock_check(lock), subclass);\
} while (0)
#define spin_lock_nest_lock(lock, nest_lock) \
do { \
raw_spin_lock_nest_lock(spinlock_check(lock), nest_lock); \