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authorWill Deacon <will.deacon@arm.com>2017-10-03 19:25:28 +0100
committerIngo Molnar <mingo@kernel.org>2017-10-10 11:50:18 +0200
commit0160fb177d484367e041ac251fca591a3e49660c (patch)
treec573a5a80bc6c62a0bcbbeb31be3b121367c3a2b /arch/metag
parenta8a217c22116eff6c120d753c9934089fb229af0 (diff)
downloadlinux-0160fb177d484367e041ac251fca591a3e49660c.tar.bz2
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/metag')
-rw-r--r--arch/metag/include/asm/spinlock.h4
-rw-r--r--arch/metag/include/asm/spinlock_lnkget.h4
2 files changed, 0 insertions, 8 deletions
diff --git a/arch/metag/include/asm/spinlock.h b/arch/metag/include/asm/spinlock.h
index ddf7fe5708a6..b5b4174cde5e 100644
--- a/arch/metag/include/asm/spinlock.h
+++ b/arch/metag/include/asm/spinlock.h
@@ -20,8 +20,4 @@
#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-#define arch_spin_relax(lock) cpu_relax()
-#define arch_read_relax(lock) cpu_relax()
-#define arch_write_relax(lock) cpu_relax()
-
#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/metag/include/asm/spinlock_lnkget.h b/arch/metag/include/asm/spinlock_lnkget.h
index 6a932a952d53..d5c334ddfd62 100644
--- a/arch/metag/include/asm/spinlock_lnkget.h
+++ b/arch/metag/include/asm/spinlock_lnkget.h
@@ -212,8 +212,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-#define arch_spin_relax(lock) cpu_relax()
-#define arch_read_relax(lock) cpu_relax()
-#define arch_write_relax(lock) cpu_relax()
-
#endif /* __ASM_SPINLOCK_LNKGET_H */