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locking/arch: Remove dummy arch_{read,spin,write}_lock_flags() implementations

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The arch_{read,spin,write}_lock_flags() macros are simply mapped to the
non-flags versions by the majority of architectures, so do this in core
code and remove the dummy implementations. Also remove the implementation
in spinlock_up.h, since all callers of do_raw_spin_lock_flags() call
local_irq_save(flags) anyway.

Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Will Deacon 2017-10-03 19:25:29 +01:00 • committed by Ingo Molnar
commit a4c1887d4c
27 changed files with 20 additions and 102 deletions
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4
arch/sh/include/asm/spinlock-cas.h
View file

@ -27,7 +27,6 @@ static inline unsigned __sl_cas(volatile unsigned *p, unsigned old, unsigned new
*/
#define arch_spin_is_locked(x) ((x)->lock <= 0)
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
static inline void arch_spin_lock(arch_spinlock_t *lock)
{
@ -90,7 +89,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
return __sl_cas(&rw->lock, RW_LOCK_BIAS, 0) == RW_LOCK_BIAS;
}
#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
#endif /* __ASM_SH_SPINLOCK_CAS_H */

4
arch/sh/include/asm/spinlock-llsc.h
View file

@ -19,7 +19,6 @@
*/
#define arch_spin_is_locked(x) ((x)->lock <= 0)
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
/*
* Simple spin lock operations. There are two variants, one clears IRQ's
@ -197,7 +196,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
return (oldval > (RW_LOCK_BIAS - 1));
}
#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
#endif /* __ASM_SH_SPINLOCK_LLSC_H */