diff options
| author | Will Deacon <will.deacon@arm.com> | 2017-10-03 20:25:28 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-10-10 11:50:18 +0200 |
| commit | 0160fb177d484367e041ac251fca591a3e49660c (patch) | |
| tree | c573a5a80bc6c62a0bcbbeb31be3b121367c3a2b /arch/s390 | |
| parent | locking/core: Remove {read,spin,write}_can_lock() (diff) | |
| download | linux-0160fb177d484367e041ac251fca591a3e49660c.tar.xz linux-0160fb177d484367e041ac251fca591a3e49660c.zip | |
locking/arch: Remove dummy arch_{read,spin,write}_relax() implementations
arch_{read,spin,write}_relax() are defined as cpu_relax() by the core
code, so architectures that can't do better (i.e. most of them) don't
need to bother with the dummy definitions.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: paulmck@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1507055129-12300-3-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/spinlock.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h index dc9c58ed9e4c..4eca60cc81e4 100644 --- a/arch/s390/include/asm/spinlock.h +++ b/arch/s390/include/asm/spinlock.h @@ -45,6 +45,7 @@ static inline void arch_spin_relax(arch_spinlock_t *lock) { arch_lock_relax(lock->lock); } +#define arch_spin_relax arch_spin_relax static inline u32 arch_spin_lockval(int cpu) { @@ -256,10 +257,12 @@ static inline void arch_read_relax(arch_rwlock_t *rw) { arch_lock_relax(rw->owner); } +#define arch_read_relax arch_read_relax static inline void arch_write_relax(arch_rwlock_t *rw) { arch_lock_relax(rw->owner); } +#define arch_write_relax arch_write_relax #endif /* __ASM_SPINLOCK_H */ |