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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-03 21:57:53 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-03 21:57:53 +0200 |
| commit | 776edb59317ada867dfcddde40b55648beeb0078 (patch) | |
| tree | f6a6136374642323cfefd7d6399ea429f9018ade /arch/xtensa | |
| parent | Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kerne... (diff) | |
| parent | rwsem: Add comments to explain the meaning of the rwsem's count field (diff) | |
| download | linux-776edb59317ada867dfcddde40b55648beeb0078.tar.xz linux-776edb59317ada867dfcddde40b55648beeb0078.zip | |
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/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/atomic.h | 7 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/barrier.h | 3 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/bitops.h | 4 |
3 files changed, 5 insertions, 9 deletions
diff --git a/arch/xtensa/include/asm/atomic.h b/arch/xtensa/include/asm/atomic.h index e7fb447bce8e..e5103b47a8ce 100644 --- a/arch/xtensa/include/asm/atomic.h +++ b/arch/xtensa/include/asm/atomic.h @@ -19,6 +19,7 @@ #ifdef __KERNEL__ #include <asm/processor.h> #include <asm/cmpxchg.h> +#include <asm/barrier.h> #define ATOMIC_INIT(i) { (i) } @@ -387,12 +388,6 @@ static inline void atomic_set_mask(unsigned int mask, atomic_t *v) #endif } -/* Atomic operations are already serializing */ -#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 /* __KERNEL__ */ #endif /* _XTENSA_ATOMIC_H */ diff --git a/arch/xtensa/include/asm/barrier.h b/arch/xtensa/include/asm/barrier.h index 0a24b04d6b21..5b88774c75ab 100644 --- a/arch/xtensa/include/asm/barrier.h +++ b/arch/xtensa/include/asm/barrier.h @@ -13,6 +13,9 @@ #define rmb() barrier() #define wmb() mb() +#define smp_mb__before_atomic() barrier() +#define smp_mb__after_atomic() barrier() + #include <asm-generic/barrier.h> #endif /* _XTENSA_SYSTEM_H */ diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h index 7b6873ae84c2..3f44fa2a53e9 100644 --- a/arch/xtensa/include/asm/bitops.h +++ b/arch/xtensa/include/asm/bitops.h @@ -21,9 +21,7 @@ #include <asm/processor.h> #include <asm/byteorder.h> - -#define smp_mb__before_clear_bit() smp_mb() -#define smp_mb__after_clear_bit() smp_mb() +#include <asm/barrier.h> #include <asm-generic/bitops/non-atomic.h> |