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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-03 15:57:53 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-03 15:57:53 -0400 |
commit | 776edb59317ada867dfcddde40b55648beeb0078 (patch) | |
tree | f6a6136374642323cfefd7d6399ea429f9018ade /include/asm-generic/bitops/atomic.h | |
parent | 59a3d4c3631e553357b7305dc09db1990aa6757c (diff) | |
parent | 3cf2f34e1a3d4d5ff209d087925cf950e52f4805 (diff) |
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 'include/asm-generic/bitops/atomic.h')
-rw-r--r-- | include/asm-generic/bitops/atomic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-generic/bitops/atomic.h b/include/asm-generic/bitops/atomic.h index 9ae6c34dc191..49673510b484 100644 --- a/include/asm-generic/bitops/atomic.h +++ b/include/asm-generic/bitops/atomic.h | |||
@@ -80,7 +80,7 @@ static inline void set_bit(int nr, volatile unsigned long *addr) | |||
80 | * | 80 | * |
81 | * clear_bit() is atomic and may not be reordered. However, it does | 81 | * clear_bit() is atomic and may not be reordered. However, it does |
82 | * not contain a memory barrier, so if it is used for locking purposes, | 82 | * not contain a memory barrier, so if it is used for locking purposes, |
83 | * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit() | 83 | * you should call smp_mb__before_atomic() and/or smp_mb__after_atomic() |
84 | * in order to ensure changes are visible on other processors. | 84 | * in order to ensure changes are visible on other processors. |
85 | */ | 85 | */ |
86 | static inline void clear_bit(int nr, volatile unsigned long *addr) | 86 | static inline void clear_bit(int nr, volatile unsigned long *addr) |