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authorSteven Whitehouse <swhiteho@redhat.com>2006-09-04 10:31:36 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-09-04 10:31:36 -0400
commit31e77ac55f18db0ec1c724840927562ef3093ef6 (patch)
tree01bb0ac2868debd2246df4c5e5617a2ce9f09600 /include/asm-x86_64/spinlock.h
parent5029996547a9f3988459e11955c13259495308ef (diff)
parentc336923b668fdcf0312efbec3b44895d713f4d81 (diff)
Merge branch 'master' into gfs2
Diffstat (limited to 'include/asm-x86_64/spinlock.h')
-rw-r--r--include/asm-x86_64/spinlock.h11
1 files changed, 4 insertions, 7 deletions
diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h
index 8d3421996f94..248a79f0eaff 100644
--- a/include/asm-x86_64/spinlock.h
+++ b/include/asm-x86_64/spinlock.h
@@ -21,7 +21,7 @@
21 21
22#define __raw_spin_lock_string \ 22#define __raw_spin_lock_string \
23 "\n1:\t" \ 23 "\n1:\t" \
24 "lock ; decl %0\n\t" \ 24 LOCK_PREFIX " ; decl %0\n\t" \
25 "js 2f\n" \ 25 "js 2f\n" \
26 LOCK_SECTION_START("") \ 26 LOCK_SECTION_START("") \
27 "2:\t" \ 27 "2:\t" \
@@ -40,10 +40,7 @@
40 40
41static inline void __raw_spin_lock(raw_spinlock_t *lock) 41static inline void __raw_spin_lock(raw_spinlock_t *lock)
42{ 42{
43 alternative_smp( 43 asm volatile(__raw_spin_lock_string : "=m" (lock->slock) : : "memory");
44 __raw_spin_lock_string,
45 __raw_spin_lock_string_up,
46 "=m" (lock->slock) : : "memory");
47} 44}
48 45
49#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) 46#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
@@ -125,12 +122,12 @@ static inline int __raw_write_trylock(raw_rwlock_t *lock)
125 122
126static inline void __raw_read_unlock(raw_rwlock_t *rw) 123static inline void __raw_read_unlock(raw_rwlock_t *rw)
127{ 124{
128 asm volatile("lock ; incl %0" :"=m" (rw->lock) : : "memory"); 125 asm volatile(LOCK_PREFIX " ; incl %0" :"=m" (rw->lock) : : "memory");
129} 126}
130 127
131static inline void __raw_write_unlock(raw_rwlock_t *rw) 128static inline void __raw_write_unlock(raw_rwlock_t *rw)
132{ 129{
133 asm volatile("lock ; addl $" RW_LOCK_BIAS_STR ",%0" 130 asm volatile(LOCK_PREFIX " ; addl $" RW_LOCK_BIAS_STR ",%0"
134 : "=m" (rw->lock) : : "memory"); 131 : "=m" (rw->lock) : : "memory");
135} 132}
136 133