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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-03 12:57:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-03 12:57:53 -0700
commit776edb59317ada867dfcddde40b55648beeb0078 (patch)
treef6a6136374642323cfefd7d6399ea429f9018ade /arch/metag
parent59a3d4c3631e553357b7305dc09db1990aa6757c (diff)
parent3cf2f34e1a3d4d5ff209d087925cf950e52f4805 (diff)
downloadlinux-776edb59317ada867dfcddde40b55648beeb0078.tar.gz
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
Pull core locking updates from Ingo Molnar: "The main changes in this cycle were: - reduced/streamlined smp_mb__*() interface that allows more usecases and makes the existing ones less buggy, especially in rarer architectures - add rwsem implementation comments - bump up lockdep limits" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) rwsem: Add comments to explain the meaning of the rwsem's count field lockdep: Increase static allocations arch: Mass conversion of smp_mb__*() arch,doc: Convert smp_mb__*() arch,xtensa: Convert smp_mb__*() arch,x86: Convert smp_mb__*() arch,tile: Convert smp_mb__*() arch,sparc: Convert smp_mb__*() arch,sh: Convert smp_mb__*() arch,score: Convert smp_mb__*() arch,s390: Convert smp_mb__*() arch,powerpc: Convert smp_mb__*() arch,parisc: Convert smp_mb__*() arch,openrisc: Convert smp_mb__*() arch,mn10300: Convert smp_mb__*() arch,mips: Convert smp_mb__*() arch,metag: Convert smp_mb__*() arch,m68k: Convert smp_mb__*() arch,m32r: Convert smp_mb__*() arch,ia64: Convert smp_mb__*() ...
Diffstat (limited to 'arch/metag')
-rw-r--r--arch/metag/include/asm/atomic.h6
-rw-r--r--arch/metag/include/asm/barrier.h3
-rw-r--r--arch/metag/include/asm/bitops.h6
3 files changed, 4 insertions, 11 deletions
diff --git a/arch/metag/include/asm/atomic.h b/arch/metag/include/asm/atomic.h
index 307ecd2bd9a..470e365f04e 100644
--- a/arch/metag/include/asm/atomic.h
+++ b/arch/metag/include/asm/atomic.h
@@ -4,6 +4,7 @@
#include <linux/compiler.h>
#include <linux/types.h>
#include <asm/cmpxchg.h>
+#include <asm/barrier.h>
#if defined(CONFIG_METAG_ATOMICITY_IRQSOFF)
/* The simple UP case. */
@@ -39,11 +40,6 @@
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
-#define smp_mb__before_atomic_dec() barrier()
-#define smp_mb__after_atomic_dec() barrier()
-#define smp_mb__before_atomic_inc() barrier()
-#define smp_mb__after_atomic_inc() barrier()
-
#endif
#define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v)
diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h
index 2d6f0de7732..c7591e80067 100644
--- a/arch/metag/include/asm/barrier.h
+++ b/arch/metag/include/asm/barrier.h
@@ -100,4 +100,7 @@ do { \
___p1; \
})
+#define smp_mb__before_atomic() barrier()
+#define smp_mb__after_atomic() barrier()
+
#endif /* _ASM_METAG_BARRIER_H */
diff --git a/arch/metag/include/asm/bitops.h b/arch/metag/include/asm/bitops.h
index c0d0df0d137..2671134ee74 100644
--- a/arch/metag/include/asm/bitops.h
+++ b/arch/metag/include/asm/bitops.h
@@ -5,12 +5,6 @@
#include <asm/barrier.h>
#include <asm/global_lock.h>
-/*
- * clear_bit() doesn't provide any barrier for the compiler.
- */
-#define smp_mb__before_clear_bit() barrier()
-#define smp_mb__after_clear_bit() barrier()
-
#ifdef CONFIG_SMP
/*
* These functions are the basis of our bit ops.