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locking: Convert raw_rwlock to arch_rwlock

Browse source 
Not strictly necessary for -rt as -rt does not have non sleeping
rwlocks, but it's odd to not have a consistent naming convention.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: linux-arch@vger.kernel.org
This commit is contained in:
Thomas Gleixner 2009-12-03 20:01:19 +01:00
parent 0199c4e68d
commit fb3a6bbc91
32 changed files with 150 additions and 150 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
arch/alpha/include/asm/spinlock.h
View file

@ -50,17 +50,17 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
/***********************************************************/ /***********************************************************/
static inline int __raw_read_can_lock(raw_rwlock_t *lock) static inline int __raw_read_can_lock(arch_rwlock_t *lock)
{ {
return (lock->lock & 1) == 0; return (lock->lock & 1) == 0;
} }
static inline int __raw_write_can_lock(raw_rwlock_t *lock) static inline int __raw_write_can_lock(arch_rwlock_t *lock)
{ {
return lock->lock == 0; return lock->lock == 0;
} }
static inline void __raw_read_lock(raw_rwlock_t *lock) static inline void __raw_read_lock(arch_rwlock_t *lock)
{ {
long regx; long regx;
@ -80,7 +80,7 @@ static inline void __raw_read_lock(raw_rwlock_t *lock)
: "m" (*lock) : "memory"); : "m" (*lock) : "memory");
} }
static inline void __raw_write_lock(raw_rwlock_t *lock) static inline void __raw_write_lock(arch_rwlock_t *lock)
{ {
long regx; long regx;
@ -100,7 +100,7 @@ static inline void __raw_write_lock(raw_rwlock_t *lock)
: "m" (*lock) : "memory"); : "m" (*lock) : "memory");
} }
static inline int __raw_read_trylock(raw_rwlock_t * lock) static inline int __raw_read_trylock(arch_rwlock_t * lock)
{ {
long regx; long regx;
int success; int success;
@ -122,7 +122,7 @@ static inline int __raw_read_trylock(raw_rwlock_t * lock)
return success; return success;
} }
static inline int __raw_write_trylock(raw_rwlock_t * lock) static inline int __raw_write_trylock(arch_rwlock_t * lock)
{ {
long regx; long regx;
int success; int success;
@ -144,7 +144,7 @@ static inline int __raw_write_trylock(raw_rwlock_t * lock)
return success; return success;
} }
static inline void __raw_read_unlock(raw_rwlock_t * lock) static inline void __raw_read_unlock(arch_rwlock_t * lock)
{ {
long regx; long regx;
__asm__ __volatile__( __asm__ __volatile__(
@ -160,7 +160,7 @@ static inline void __raw_read_unlock(raw_rwlock_t * lock)
: "m" (*lock) : "memory"); : "m" (*lock) : "memory");
} }
static inline void __raw_write_unlock(raw_rwlock_t * lock) static inline void __raw_write_unlock(arch_rwlock_t * lock)
{ {
mb(); mb();
lock->lock = 0; lock->lock = 0;

4
arch/alpha/include/asm/spinlock_types.h
View file

@ -13,8 +13,8 @@ typedef struct {
typedef struct { typedef struct {
volatile unsigned int lock; volatile unsigned int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { 0 } #define __ARCH_RW_LOCK_UNLOCKED { 0 }
#endif #endif

12
arch/arm/include/asm/spinlock.h
View file

@ -86,7 +86,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
* just write zero since the lock is exclusively held. * just write zero since the lock is exclusively held.
*/ */
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
unsigned long tmp; unsigned long tmp;
@ -106,7 +106,7 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
smp_mb(); smp_mb();
} }
static inline int __raw_write_trylock(raw_rwlock_t *rw) static inline int __raw_write_trylock(arch_rwlock_t *rw)
{ {
unsigned long tmp; unsigned long tmp;
@ -126,7 +126,7 @@ static inline int __raw_write_trylock(raw_rwlock_t *rw)
} }
} }
static inline void __raw_write_unlock(raw_rwlock_t *rw) static inline void __raw_write_unlock(arch_rwlock_t *rw)
{ {
smp_mb(); smp_mb();
@ -156,7 +156,7 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
* currently active. However, we know we won't have any write * currently active. However, we know we won't have any write
* locks. * locks.
*/ */
static inline void __raw_read_lock(raw_rwlock_t *rw) static inline void __raw_read_lock(arch_rwlock_t *rw)
{ {
unsigned long tmp, tmp2; unsigned long tmp, tmp2;
@ -176,7 +176,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
smp_mb(); smp_mb();
} }
static inline void __raw_read_unlock(raw_rwlock_t *rw) static inline void __raw_read_unlock(arch_rwlock_t *rw)
{ {
unsigned long tmp, tmp2; unsigned long tmp, tmp2;
@ -198,7 +198,7 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw)
: "cc"); : "cc");
} }
static inline int __raw_read_trylock(raw_rwlock_t *rw) static inline int __raw_read_trylock(arch_rwlock_t *rw)
{ {
unsigned long tmp, tmp2 = 1; unsigned long tmp, tmp2 = 1;

4
arch/arm/include/asm/spinlock_types.h
View file

@ -13,8 +13,8 @@ typedef struct {
typedef struct { typedef struct {
volatile unsigned int lock; volatile unsigned int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { 0 } #define __ARCH_RW_LOCK_UNLOCKED { 0 }
#endif #endif

16
arch/blackfin/include/asm/spinlock.h
View file

@ -52,42 +52,42 @@ static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
cpu_relax(); cpu_relax();
} }
static inline int __raw_read_can_lock(raw_rwlock_t *rw) static inline int __raw_read_can_lock(arch_rwlock_t *rw)
{ {
return __raw_uncached_fetch_asm(&rw->lock) > 0; return __raw_uncached_fetch_asm(&rw->lock) > 0;
} }
static inline int __raw_write_can_lock(raw_rwlock_t *rw) static inline int __raw_write_can_lock(arch_rwlock_t *rw)
{ {
return __raw_uncached_fetch_asm(&rw->lock) == RW_LOCK_BIAS; return __raw_uncached_fetch_asm(&rw->lock) == RW_LOCK_BIAS;
} }
static inline void __raw_read_lock(raw_rwlock_t *rw) static inline void __raw_read_lock(arch_rwlock_t *rw)
{ {
__raw_read_lock_asm(&rw->lock); __raw_read_lock_asm(&rw->lock);
} }
static inline int __raw_read_trylock(raw_rwlock_t *rw) static inline int __raw_read_trylock(arch_rwlock_t *rw)
{ {
return __raw_read_trylock_asm(&rw->lock); return __raw_read_trylock_asm(&rw->lock);
} }
static inline void __raw_read_unlock(raw_rwlock_t *rw) static inline void __raw_read_unlock(arch_rwlock_t *rw)
{ {
__raw_read_unlock_asm(&rw->lock); __raw_read_unlock_asm(&rw->lock);
} }
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
__raw_write_lock_asm(&rw->lock); __raw_write_lock_asm(&rw->lock);
} }
static inline int __raw_write_trylock(raw_rwlock_t *rw) static inline int __raw_write_trylock(arch_rwlock_t *rw)
{ {
return __raw_write_trylock_asm(&rw->lock); return __raw_write_trylock_asm(&rw->lock);
} }
static inline void __raw_write_unlock(raw_rwlock_t *rw) static inline void __raw_write_unlock(arch_rwlock_t *rw)
{ {
__raw_write_unlock_asm(&rw->lock); __raw_write_unlock_asm(&rw->lock);
} }

4
arch/blackfin/include/asm/spinlock_types.h
View file

@ -21,8 +21,8 @@ typedef struct {
typedef struct { typedef struct {
volatile unsigned int lock; volatile unsigned int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { RW_LOCK_BIAS } #define __ARCH_RW_LOCK_UNLOCKED { RW_LOCK_BIAS }
#endif #endif

16
arch/cris/include/arch-v32/arch/spinlock.h
View file

@ -56,17 +56,17 @@ arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
* *
*/ */
static inline int __raw_read_can_lock(raw_rwlock_t *x) static inline int __raw_read_can_lock(arch_rwlock_t *x)
{ {
return (int)(x)->lock > 0; return (int)(x)->lock > 0;
} }
static inline int __raw_write_can_lock(raw_rwlock_t *x) static inline int __raw_write_can_lock(arch_rwlock_t *x)
{ {
return (x)->lock == RW_LOCK_BIAS; return (x)->lock == RW_LOCK_BIAS;
} }
static inline void __raw_read_lock(raw_rwlock_t *rw) static inline void __raw_read_lock(arch_rwlock_t *rw)
{ {
arch_spin_lock(&rw->slock); arch_spin_lock(&rw->slock);
while (rw->lock == 0); while (rw->lock == 0);
@ -74,7 +74,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
arch_spin_unlock(&rw->slock); arch_spin_unlock(&rw->slock);
} }
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
arch_spin_lock(&rw->slock); arch_spin_lock(&rw->slock);
while (rw->lock != RW_LOCK_BIAS); while (rw->lock != RW_LOCK_BIAS);
@ -82,14 +82,14 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
arch_spin_unlock(&rw->slock); arch_spin_unlock(&rw->slock);
} }
static inline void __raw_read_unlock(raw_rwlock_t *rw) static inline void __raw_read_unlock(arch_rwlock_t *rw)
{ {
arch_spin_lock(&rw->slock); arch_spin_lock(&rw->slock);
rw->lock++; rw->lock++;
arch_spin_unlock(&rw->slock); arch_spin_unlock(&rw->slock);
} }
static inline void __raw_write_unlock(raw_rwlock_t *rw) static inline void __raw_write_unlock(arch_rwlock_t *rw)
{ {
arch_spin_lock(&rw->slock); arch_spin_lock(&rw->slock);
while (rw->lock != RW_LOCK_BIAS); while (rw->lock != RW_LOCK_BIAS);
@ -97,7 +97,7 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
arch_spin_unlock(&rw->slock); arch_spin_unlock(&rw->slock);
} }
static inline int __raw_read_trylock(raw_rwlock_t *rw) static inline int __raw_read_trylock(arch_rwlock_t *rw)
{ {
int ret = 0; int ret = 0;
arch_spin_lock(&rw->slock); arch_spin_lock(&rw->slock);
@ -109,7 +109,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *rw)
return ret; return ret;
} }
static inline int __raw_write_trylock(raw_rwlock_t *rw) static inline int __raw_write_trylock(arch_rwlock_t *rw)
{ {
int ret = 0; int ret = 0;
arch_spin_lock(&rw->slock); arch_spin_lock(&rw->slock);

16
arch/ia64/include/asm/spinlock.h
View file

@ -146,7 +146,7 @@ static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
#ifdef ASM_SUPPORTED #ifdef ASM_SUPPORTED
static __always_inline void static __always_inline void
__raw_read_lock_flags(raw_rwlock_t *lock, unsigned long flags) __raw_read_lock_flags(arch_rwlock_t *lock, unsigned long flags)
{ {
__asm__ __volatile__ ( __asm__ __volatile__ (
"tbit.nz p6, p0 = %1,%2\n" "tbit.nz p6, p0 = %1,%2\n"
@ -177,7 +177,7 @@ __raw_read_lock_flags(raw_rwlock_t *lock, unsigned long flags)
#define __raw_read_lock(rw) \ #define __raw_read_lock(rw) \
do { \ do { \
raw_rwlock_t *__read_lock_ptr = (rw); \ arch_rwlock_t *__read_lock_ptr = (rw); \
\ \
while (unlikely(ia64_fetchadd(1, (int *) __read_lock_ptr, acq) < 0)) { \ while (unlikely(ia64_fetchadd(1, (int *) __read_lock_ptr, acq) < 0)) { \
ia64_fetchadd(-1, (int *) __read_lock_ptr, rel); \ ia64_fetchadd(-1, (int *) __read_lock_ptr, rel); \
@ -190,14 +190,14 @@ do { \
#define __raw_read_unlock(rw) \ #define __raw_read_unlock(rw) \
do { \ do { \
raw_rwlock_t *__read_lock_ptr = (rw); \ arch_rwlock_t *__read_lock_ptr = (rw); \
ia64_fetchadd(-1, (int *) __read_lock_ptr, rel); \ ia64_fetchadd(-1, (int *) __read_lock_ptr, rel); \
} while (0) } while (0)
#ifdef ASM_SUPPORTED #ifdef ASM_SUPPORTED
static __always_inline void static __always_inline void
__raw_write_lock_flags(raw_rwlock_t *lock, unsigned long flags) __raw_write_lock_flags(arch_rwlock_t *lock, unsigned long flags)
{ {
__asm__ __volatile__ ( __asm__ __volatile__ (
"tbit.nz p6, p0 = %1, %2\n" "tbit.nz p6, p0 = %1, %2\n"
@ -235,7 +235,7 @@ __raw_write_lock_flags(raw_rwlock_t *lock, unsigned long flags)
(result == 0); \ (result == 0); \
}) })
static inline void __raw_write_unlock(raw_rwlock_t *x) static inline void __raw_write_unlock(arch_rwlock_t *x)
{ {
u8 *y = (u8 *)x; u8 *y = (u8 *)x;
barrier(); barrier();
@ -265,7 +265,7 @@ static inline void __raw_write_unlock(raw_rwlock_t *x)
(ia64_val == 0); \ (ia64_val == 0); \
}) })
static inline void __raw_write_unlock(raw_rwlock_t *x) static inline void __raw_write_unlock(arch_rwlock_t *x)
{ {
barrier(); barrier();
x->write_lock = 0; x->write_lock = 0;
@ -273,10 +273,10 @@ static inline void __raw_write_unlock(raw_rwlock_t *x)
#endif /* !ASM_SUPPORTED */ #endif /* !ASM_SUPPORTED */
static inline int __raw_read_trylock(raw_rwlock_t *x) static inline int __raw_read_trylock(arch_rwlock_t *x)
{ {
union { union {
raw_rwlock_t lock; arch_rwlock_t lock;
__u32 word; __u32 word;
} old, new; } old, new;
old.lock = new.lock = *x; old.lock = new.lock = *x;

4
arch/ia64/include/asm/spinlock_types.h
View file

@ -14,8 +14,8 @@ typedef struct {
typedef struct { typedef struct {
volatile unsigned int read_counter : 31; volatile unsigned int read_counter : 31;
volatile unsigned int write_lock : 1; volatile unsigned int write_lock : 1;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { 0, 0 } #define __ARCH_RW_LOCK_UNLOCKED { 0, 0 }
#endif #endif

12
arch/m32r/include/asm/spinlock.h
View file

@ -148,7 +148,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
*/ */
#define __raw_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS) #define __raw_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS)
static inline void __raw_read_lock(raw_rwlock_t *rw) static inline void __raw_read_lock(arch_rwlock_t *rw)
{ {
unsigned long tmp0, tmp1; unsigned long tmp0, tmp1;
@ -199,7 +199,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
); );
} }
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
unsigned long tmp0, tmp1, tmp2; unsigned long tmp0, tmp1, tmp2;
@ -252,7 +252,7 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
); );
} }
static inline void __raw_read_unlock(raw_rwlock_t *rw) static inline void __raw_read_unlock(arch_rwlock_t *rw)
{ {
unsigned long tmp0, tmp1; unsigned long tmp0, tmp1;
@ -274,7 +274,7 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw)
); );
} }
static inline void __raw_write_unlock(raw_rwlock_t *rw) static inline void __raw_write_unlock(arch_rwlock_t *rw)
{ {
unsigned long tmp0, tmp1, tmp2; unsigned long tmp0, tmp1, tmp2;
@ -298,7 +298,7 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
); );
} }
static inline int __raw_read_trylock(raw_rwlock_t *lock) static inline int __raw_read_trylock(arch_rwlock_t *lock)
{ {
atomic_t *count = (atomic_t*)lock; atomic_t *count = (atomic_t*)lock;
if (atomic_dec_return(count) >= 0) if (atomic_dec_return(count) >= 0)
@ -307,7 +307,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *lock)
return 0; return 0;
} }
static inline int __raw_write_trylock(raw_rwlock_t *lock) static inline int __raw_write_trylock(arch_rwlock_t *lock)
{ {
atomic_t *count = (atomic_t *)lock; atomic_t *count = (atomic_t *)lock;
if (atomic_sub_and_test(RW_LOCK_BIAS, count)) if (atomic_sub_and_test(RW_LOCK_BIAS, count))

4
arch/m32r/include/asm/spinlock_types.h
View file

@ -13,11 +13,11 @@ typedef struct {
typedef struct { typedef struct {
volatile int lock; volatile int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define RW_LOCK_BIAS 0x01000000 #define RW_LOCK_BIAS 0x01000000
#define RW_LOCK_BIAS_STR "0x01000000" #define RW_LOCK_BIAS_STR "0x01000000"
#define __RAW_RW_LOCK_UNLOCKED { RW_LOCK_BIAS } #define __ARCH_RW_LOCK_UNLOCKED { RW_LOCK_BIAS }
#endif /* _ASM_M32R_SPINLOCK_TYPES_H */ #endif /* _ASM_M32R_SPINLOCK_TYPES_H */

12
arch/mips/include/asm/spinlock.h
View file

@ -256,7 +256,7 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
*/ */
#define __raw_write_can_lock(rw) (!(rw)->lock) #define __raw_write_can_lock(rw) (!(rw)->lock)
static inline void __raw_read_lock(raw_rwlock_t *rw) static inline void __raw_read_lock(arch_rwlock_t *rw)
{ {
unsigned int tmp; unsigned int tmp;
@ -301,7 +301,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
/* Note the use of sub, not subu which will make the kernel die with an /* Note the use of sub, not subu which will make the kernel die with an
overflow exception if we ever try to unlock an rwlock that is already overflow exception if we ever try to unlock an rwlock that is already
unlocked or is being held by a writer. */ unlocked or is being held by a writer. */
static inline void __raw_read_unlock(raw_rwlock_t *rw) static inline void __raw_read_unlock(arch_rwlock_t *rw)
{ {
unsigned int tmp; unsigned int tmp;
@ -335,7 +335,7 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw)
} }
} }
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
unsigned int tmp; unsigned int tmp;
@ -377,7 +377,7 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
smp_llsc_mb(); smp_llsc_mb();
} }
static inline void __raw_write_unlock(raw_rwlock_t *rw) static inline void __raw_write_unlock(arch_rwlock_t *rw)
{ {
smp_mb(); smp_mb();
@ -389,7 +389,7 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
: "memory"); : "memory");
} }
static inline int __raw_read_trylock(raw_rwlock_t *rw) static inline int __raw_read_trylock(arch_rwlock_t *rw)
{ {
unsigned int tmp; unsigned int tmp;
int ret; int ret;
@ -433,7 +433,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *rw)
return ret; return ret;
} }
static inline int __raw_write_trylock(raw_rwlock_t *rw) static inline int __raw_write_trylock(arch_rwlock_t *rw)
{ {
unsigned int tmp; unsigned int tmp;
int ret; int ret;

4
arch/mips/include/asm/spinlock_types.h
View file

@ -18,8 +18,8 @@ typedef struct {
typedef struct { typedef struct {
volatile unsigned int lock; volatile unsigned int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { 0 } #define __ARCH_RW_LOCK_UNLOCKED { 0 }
#endif #endif

16
arch/parisc/include/asm/spinlock.h
View file

@ -69,7 +69,7 @@ static inline int arch_spin_trylock(arch_spinlock_t *x)
/* Note that we have to ensure interrupts are disabled in case we're /* Note that we have to ensure interrupts are disabled in case we're
* interrupted by some other code that wants to grab the same read lock */ * interrupted by some other code that wants to grab the same read lock */
static __inline__ void __raw_read_lock(raw_rwlock_t *rw) static __inline__ void __raw_read_lock(arch_rwlock_t *rw)
{ {
unsigned long flags; unsigned long flags;
local_irq_save(flags); local_irq_save(flags);
@ -81,7 +81,7 @@ static __inline__ void __raw_read_lock(raw_rwlock_t *rw)
/* Note that we have to ensure interrupts are disabled in case we're /* Note that we have to ensure interrupts are disabled in case we're
* interrupted by some other code that wants to grab the same read lock */ * interrupted by some other code that wants to grab the same read lock */
static __inline__ void __raw_read_unlock(raw_rwlock_t *rw) static __inline__ void __raw_read_unlock(arch_rwlock_t *rw)
{ {
unsigned long flags; unsigned long flags;
local_irq_save(flags); local_irq_save(flags);
@ -93,7 +93,7 @@ static __inline__ void __raw_read_unlock(raw_rwlock_t *rw)
/* Note that we have to ensure interrupts are disabled in case we're /* Note that we have to ensure interrupts are disabled in case we're
* interrupted by some other code that wants to grab the same read lock */ * interrupted by some other code that wants to grab the same read lock */
static __inline__ int __raw_read_trylock(raw_rwlock_t *rw) static __inline__ int __raw_read_trylock(arch_rwlock_t *rw)
{ {
unsigned long flags; unsigned long flags;
retry: retry:
@ -119,7 +119,7 @@ static __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
/* Note that we have to ensure interrupts are disabled in case we're /* Note that we have to ensure interrupts are disabled in case we're
* interrupted by some other code that wants to read_trylock() this lock */ * interrupted by some other code that wants to read_trylock() this lock */
static __inline__ void __raw_write_lock(raw_rwlock_t *rw) static __inline__ void __raw_write_lock(arch_rwlock_t *rw)
{ {
unsigned long flags; unsigned long flags;
retry: retry:
@ -141,7 +141,7 @@ retry:
local_irq_restore(flags); local_irq_restore(flags);
} }
static __inline__ void __raw_write_unlock(raw_rwlock_t *rw) static __inline__ void __raw_write_unlock(arch_rwlock_t *rw)
{ {
rw->counter = 0; rw->counter = 0;
arch_spin_unlock(&rw->lock); arch_spin_unlock(&rw->lock);
@ -149,7 +149,7 @@ static __inline__ void __raw_write_unlock(raw_rwlock_t *rw)
/* Note that we have to ensure interrupts are disabled in case we're /* Note that we have to ensure interrupts are disabled in case we're
* interrupted by some other code that wants to read_trylock() this lock */ * interrupted by some other code that wants to read_trylock() this lock */
static __inline__ int __raw_write_trylock(raw_rwlock_t *rw) static __inline__ int __raw_write_trylock(arch_rwlock_t *rw)
{ {
unsigned long flags; unsigned long flags;
int result = 0; int result = 0;
@ -173,7 +173,7 @@ static __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
* read_can_lock - would read_trylock() succeed? * read_can_lock - would read_trylock() succeed?
* @lock: the rwlock in question. * @lock: the rwlock in question.
*/ */
static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw) static __inline__ int __raw_read_can_lock(arch_rwlock_t *rw)
{ {
return rw->counter >= 0; return rw->counter >= 0;
} }
@ -182,7 +182,7 @@ static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw)
* write_can_lock - would write_trylock() succeed? * write_can_lock - would write_trylock() succeed?
* @lock: the rwlock in question. * @lock: the rwlock in question.
*/ */
static __inline__ int __raw_write_can_lock(raw_rwlock_t *rw) static __inline__ int __raw_write_can_lock(arch_rwlock_t *rw)
{ {
return !rw->counter; return !rw->counter;
} }

4
arch/parisc/include/asm/spinlock_types.h
View file

@ -14,8 +14,8 @@ typedef struct {
typedef struct { typedef struct {
arch_spinlock_t lock; arch_spinlock_t lock;
volatile int counter; volatile int counter;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { __ARCH_SPIN_LOCK_UNLOCKED, 0 } #define __ARCH_RW_LOCK_UNLOCKED { __ARCH_SPIN_LOCK_UNLOCKED, 0 }
#endif #endif

18
arch/powerpc/include/asm/spinlock.h
View file

@ -97,7 +97,7 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
/* We only yield to the hypervisor if we are in shared processor mode */ /* We only yield to the hypervisor if we are in shared processor mode */
#define SHARED_PROCESSOR (get_lppaca()->shared_proc) #define SHARED_PROCESSOR (get_lppaca()->shared_proc)
extern void __spin_yield(arch_spinlock_t *lock); extern void __spin_yield(arch_spinlock_t *lock);
extern void __rw_yield(raw_rwlock_t *lock); extern void __rw_yield(arch_rwlock_t *lock);
#else /* SPLPAR || ISERIES */ #else /* SPLPAR || ISERIES */
#define __spin_yield(x) barrier() #define __spin_yield(x) barrier()
#define __rw_yield(x) barrier() #define __rw_yield(x) barrier()
@ -181,7 +181,7 @@ extern void arch_spin_unlock_wait(arch_spinlock_t *lock);
* This returns the old value in the lock + 1, * This returns the old value in the lock + 1,
* so we got a read lock if the return value is > 0. * so we got a read lock if the return value is > 0.
*/ */
static inline long arch_read_trylock(raw_rwlock_t *rw) static inline long arch_read_trylock(arch_rwlock_t *rw)
{ {
long tmp; long tmp;
@ -205,7 +205,7 @@ static inline long arch_read_trylock(raw_rwlock_t *rw)
* This returns the old value in the lock, * This returns the old value in the lock,
* so we got the write lock if the return value is 0. * so we got the write lock if the return value is 0.
*/ */
static inline long arch_write_trylock(raw_rwlock_t *rw) static inline long arch_write_trylock(arch_rwlock_t *rw)
{ {
long tmp, token; long tmp, token;
@ -225,7 +225,7 @@ static inline long arch_write_trylock(raw_rwlock_t *rw)
return tmp; return tmp;
} }
static inline void __raw_read_lock(raw_rwlock_t *rw) static inline void __raw_read_lock(arch_rwlock_t *rw)
{ {
while (1) { while (1) {
if (likely(arch_read_trylock(rw) > 0)) if (likely(arch_read_trylock(rw) > 0))
@ -239,7 +239,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
} }
} }
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
while (1) { while (1) {
if (likely(arch_write_trylock(rw) == 0)) if (likely(arch_write_trylock(rw) == 0))
@ -253,17 +253,17 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
} }
} }
static inline int __raw_read_trylock(raw_rwlock_t *rw) static inline int __raw_read_trylock(arch_rwlock_t *rw)
{ {
return arch_read_trylock(rw) > 0; return arch_read_trylock(rw) > 0;
} }
static inline int __raw_write_trylock(raw_rwlock_t *rw) static inline int __raw_write_trylock(arch_rwlock_t *rw)
{ {
return arch_write_trylock(rw) == 0; return arch_write_trylock(rw) == 0;
} }
static inline void __raw_read_unlock(raw_rwlock_t *rw) static inline void __raw_read_unlock(arch_rwlock_t *rw)
{ {
long tmp; long tmp;
@ -280,7 +280,7 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw)
: "cr0", "xer", "memory"); : "cr0", "xer", "memory");
} }
static inline void __raw_write_unlock(raw_rwlock_t *rw) static inline void __raw_write_unlock(arch_rwlock_t *rw)
{ {
__asm__ __volatile__("# write_unlock\n\t" __asm__ __volatile__("# write_unlock\n\t"
LWSYNC_ON_SMP: : :"memory"); LWSYNC_ON_SMP: : :"memory");

4
arch/powerpc/include/asm/spinlock_types.h
View file

@ -13,8 +13,8 @@ typedef struct {
typedef struct { typedef struct {
volatile signed int lock; volatile signed int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { 0 } #define __ARCH_RW_LOCK_UNLOCKED { 0 }
#endif #endif

2
arch/powerpc/lib/locks.c
View file

@ -55,7 +55,7 @@ void __spin_yield(arch_spinlock_t *lock)
* This turns out to be the same for read and write locks, since * This turns out to be the same for read and write locks, since
* we only know the holder if it is write-locked. * we only know the holder if it is write-locked.
*/ */
void __rw_yield(raw_rwlock_t *rw) void __rw_yield(arch_rwlock_t *rw)
{ {
int lock_value; int lock_value;
unsigned int holder_cpu, yield_count; unsigned int holder_cpu, yield_count;

28
arch/s390/include/asm/spinlock.h
View file

@ -121,14 +121,14 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
*/ */
#define __raw_write_can_lock(x) ((x)->lock == 0) #define __raw_write_can_lock(x) ((x)->lock == 0)
extern void _raw_read_lock_wait(raw_rwlock_t *lp); extern void _raw_read_lock_wait(arch_rwlock_t *lp);
extern void _raw_read_lock_wait_flags(raw_rwlock_t *lp, unsigned long flags); extern void _raw_read_lock_wait_flags(arch_rwlock_t *lp, unsigned long flags);
extern int _raw_read_trylock_retry(raw_rwlock_t *lp); extern int _raw_read_trylock_retry(arch_rwlock_t *lp);
extern void _raw_write_lock_wait(raw_rwlock_t *lp); extern void _raw_write_lock_wait(arch_rwlock_t *lp);
extern void _raw_write_lock_wait_flags(raw_rwlock_t *lp, unsigned long flags); extern void _raw_write_lock_wait_flags(arch_rwlock_t *lp, unsigned long flags);
extern int _raw_write_trylock_retry(raw_rwlock_t *lp); extern int _raw_write_trylock_retry(arch_rwlock_t *lp);
static inline void __raw_read_lock(raw_rwlock_t *rw) static inline void __raw_read_lock(arch_rwlock_t *rw)
{ {
unsigned int old; unsigned int old;
old = rw->lock & 0x7fffffffU; old = rw->lock & 0x7fffffffU;
@ -136,7 +136,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
_raw_read_lock_wait(rw); _raw_read_lock_wait(rw);
} }
static inline void __raw_read_lock_flags(raw_rwlock_t *rw, unsigned long flags) static inline void __raw_read_lock_flags(arch_rwlock_t *rw, unsigned long flags)
{ {
unsigned int old; unsigned int old;
old = rw->lock & 0x7fffffffU; old = rw->lock & 0x7fffffffU;
@ -144,7 +144,7 @@ static inline void __raw_read_lock_flags(raw_rwlock_t *rw, unsigned long flags)
_raw_read_lock_wait_flags(rw, flags); _raw_read_lock_wait_flags(rw, flags);
} }
static inline void __raw_read_unlock(raw_rwlock_t *rw) static inline void __raw_read_unlock(arch_rwlock_t *rw)
{ {
unsigned int old, cmp; unsigned int old, cmp;
@ -155,24 +155,24 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw)
} while (cmp != old); } while (cmp != old);
} }
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
if (unlikely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) != 0)) if (unlikely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) != 0))
_raw_write_lock_wait(rw); _raw_write_lock_wait(rw);
} }
static inline void __raw_write_lock_flags(raw_rwlock_t *rw, unsigned long flags) static inline void __raw_write_lock_flags(arch_rwlock_t *rw, unsigned long flags)
{ {
if (unlikely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) != 0)) if (unlikely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) != 0))
_raw_write_lock_wait_flags(rw, flags); _raw_write_lock_wait_flags(rw, flags);
} }
static inline void __raw_write_unlock(raw_rwlock_t *rw) static inline void __raw_write_unlock(arch_rwlock_t *rw)
{ {
_raw_compare_and_swap(&rw->lock, 0x80000000, 0); _raw_compare_and_swap(&rw->lock, 0x80000000, 0);
} }
static inline int __raw_read_trylock(raw_rwlock_t *rw) static inline int __raw_read_trylock(arch_rwlock_t *rw)
{ {
unsigned int old; unsigned int old;
old = rw->lock & 0x7fffffffU; old = rw->lock & 0x7fffffffU;
@ -181,7 +181,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *rw)
return _raw_read_trylock_retry(rw); return _raw_read_trylock_retry(rw);
} }
static inline int __raw_write_trylock(raw_rwlock_t *rw) static inline int __raw_write_trylock(arch_rwlock_t *rw)
{ {
if (likely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) == 0)) if (likely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) == 0))
return 1; return 1;

4
arch/s390/include/asm/spinlock_types.h
View file

@ -13,8 +13,8 @@ typedef struct {
typedef struct { typedef struct {
volatile unsigned int lock; volatile unsigned int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { 0 } #define __ARCH_RW_LOCK_UNLOCKED { 0 }
#endif #endif

12
arch/s390/lib/spinlock.c
View file

@ -105,7 +105,7 @@ void arch_spin_relax(arch_spinlock_t *lock)
} }
EXPORT_SYMBOL(arch_spin_relax); EXPORT_SYMBOL(arch_spin_relax);
void _raw_read_lock_wait(raw_rwlock_t *rw) void _raw_read_lock_wait(arch_rwlock_t *rw)
{ {
unsigned int old; unsigned int old;
int count = spin_retry; int count = spin_retry;
@ -124,7 +124,7 @@ void _raw_read_lock_wait(raw_rwlock_t *rw)
} }
EXPORT_SYMBOL(_raw_read_lock_wait); EXPORT_SYMBOL(_raw_read_lock_wait);
void _raw_read_lock_wait_flags(raw_rwlock_t *rw, unsigned long flags) void _raw_read_lock_wait_flags(arch_rwlock_t *rw, unsigned long flags)
{ {
unsigned int old; unsigned int old;
int count = spin_retry; int count = spin_retry;
@ -145,7 +145,7 @@ void _raw_read_lock_wait_flags(raw_rwlock_t *rw, unsigned long flags)
} }
EXPORT_SYMBOL(_raw_read_lock_wait_flags); EXPORT_SYMBOL(_raw_read_lock_wait_flags);
int _raw_read_trylock_retry(raw_rwlock_t *rw) int _raw_read_trylock_retry(arch_rwlock_t *rw)
{ {
unsigned int old; unsigned int old;
int count = spin_retry; int count = spin_retry;
@ -161,7 +161,7 @@ int _raw_read_trylock_retry(raw_rwlock_t *rw)
} }
EXPORT_SYMBOL(_raw_read_trylock_retry); EXPORT_SYMBOL(_raw_read_trylock_retry);
void _raw_write_lock_wait(raw_rwlock_t *rw) void _raw_write_lock_wait(arch_rwlock_t *rw)
{ {
int count = spin_retry; int count = spin_retry;
@ -178,7 +178,7 @@ void _raw_write_lock_wait(raw_rwlock_t *rw)
} }
EXPORT_SYMBOL(_raw_write_lock_wait); EXPORT_SYMBOL(_raw_write_lock_wait);
void _raw_write_lock_wait_flags(raw_rwlock_t *rw, unsigned long flags) void _raw_write_lock_wait_flags(arch_rwlock_t *rw, unsigned long flags)
{ {
int count = spin_retry; int count = spin_retry;
@ -197,7 +197,7 @@ void _raw_write_lock_wait_flags(raw_rwlock_t *rw, unsigned long flags)
} }
EXPORT_SYMBOL(_raw_write_lock_wait_flags); EXPORT_SYMBOL(_raw_write_lock_wait_flags);
int _raw_write_trylock_retry(raw_rwlock_t *rw) int _raw_write_trylock_retry(arch_rwlock_t *rw)
{ {
int count = spin_retry; int count = spin_retry;

12
arch/sh/include/asm/spinlock.h
View file

@ -108,7 +108,7 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
*/ */
#define __raw_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS) #define __raw_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS)
static inline void __raw_read_lock(raw_rwlock_t *rw) static inline void __raw_read_lock(arch_rwlock_t *rw)
{ {
unsigned long tmp; unsigned long tmp;
@ -126,7 +126,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
); );
} }
static inline void __raw_read_unlock(raw_rwlock_t *rw) static inline void __raw_read_unlock(arch_rwlock_t *rw)
{ {
unsigned long tmp; unsigned long tmp;
@ -142,7 +142,7 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw)
); );
} }
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
unsigned long tmp; unsigned long tmp;
@ -160,7 +160,7 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
); );
} }
static inline void __raw_write_unlock(raw_rwlock_t *rw) static inline void __raw_write_unlock(arch_rwlock_t *rw)
{ {
__asm__ __volatile__ ( __asm__ __volatile__ (
"mov.l %1, @%0 ! __raw_write_unlock \n\t" "mov.l %1, @%0 ! __raw_write_unlock \n\t"
@ -170,7 +170,7 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
); );
} }
static inline int __raw_read_trylock(raw_rwlock_t *rw) static inline int __raw_read_trylock(arch_rwlock_t *rw)
{ {
unsigned long tmp, oldval; unsigned long tmp, oldval;
@ -193,7 +193,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *rw)
return (oldval > 0); return (oldval > 0);
} }
static inline int __raw_write_trylock(raw_rwlock_t *rw) static inline int __raw_write_trylock(arch_rwlock_t *rw)
{ {
unsigned long tmp, oldval; unsigned long tmp, oldval;

4
arch/sh/include/asm/spinlock_types.h
View file

@ -13,9 +13,9 @@ typedef struct {
typedef struct { typedef struct {
volatile unsigned int lock; volatile unsigned int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define RW_LOCK_BIAS 0x01000000 #define RW_LOCK_BIAS 0x01000000
#define __RAW_RW_LOCK_UNLOCKED { RW_LOCK_BIAS } #define __ARCH_RW_LOCK_UNLOCKED { RW_LOCK_BIAS }
#endif #endif

20
arch/sparc/include/asm/spinlock_32.h
View file

@ -65,7 +65,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
* Sort of like atomic_t's on Sparc, but even more clever. * Sort of like atomic_t's on Sparc, but even more clever.
* *
* ------------------------------------ * ------------------------------------
* | 24-bit counter | wlock | raw_rwlock_t * | 24-bit counter | wlock | arch_rwlock_t
* ------------------------------------ * ------------------------------------
* 31 8 7 0 * 31 8 7 0
* *
@ -76,9 +76,9 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
* *
* Unfortunately this scheme limits us to ~16,000,000 cpus. * Unfortunately this scheme limits us to ~16,000,000 cpus.
*/ */
static inline void arch_read_lock(raw_rwlock_t *rw) static inline void arch_read_lock(arch_rwlock_t *rw)
{ {
register raw_rwlock_t *lp asm("g1"); register arch_rwlock_t *lp asm("g1");
lp = rw; lp = rw;
__asm__ __volatile__( __asm__ __volatile__(
"mov %%o7, %%g4\n\t" "mov %%o7, %%g4\n\t"
@ -96,9 +96,9 @@ do { unsigned long flags; \
local_irq_restore(flags); \ local_irq_restore(flags); \
} while(0) } while(0)
static inline void arch_read_unlock(raw_rwlock_t *rw) static inline void arch_read_unlock(arch_rwlock_t *rw)
{ {
register raw_rwlock_t *lp asm("g1"); register arch_rwlock_t *lp asm("g1");
lp = rw; lp = rw;
__asm__ __volatile__( __asm__ __volatile__(
"mov %%o7, %%g4\n\t" "mov %%o7, %%g4\n\t"
@ -116,9 +116,9 @@ do { unsigned long flags; \
local_irq_restore(flags); \ local_irq_restore(flags); \
} while(0) } while(0)
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
register raw_rwlock_t *lp asm("g1"); register arch_rwlock_t *lp asm("g1");
lp = rw; lp = rw;
__asm__ __volatile__( __asm__ __volatile__(
"mov %%o7, %%g4\n\t" "mov %%o7, %%g4\n\t"
@ -130,7 +130,7 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
*(volatile __u32 *)&lp->lock = ~0U; *(volatile __u32 *)&lp->lock = ~0U;
} }
static inline int __raw_write_trylock(raw_rwlock_t *rw) static inline int __raw_write_trylock(arch_rwlock_t *rw)
{ {
unsigned int val; unsigned int val;
@ -150,9 +150,9 @@ static inline int __raw_write_trylock(raw_rwlock_t *rw)
return (val == 0); return (val == 0);
} }
static inline int arch_read_trylock(raw_rwlock_t *rw) static inline int arch_read_trylock(arch_rwlock_t *rw)
{ {
register raw_rwlock_t *lp asm("g1"); register arch_rwlock_t *lp asm("g1");
register int res asm("o0"); register int res asm("o0");
lp = rw; lp = rw;
__asm__ __volatile__( __asm__ __volatile__(

12
arch/sparc/include/asm/spinlock_64.h
View file

@ -92,7 +92,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla
/* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */ /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
static void inline arch_read_lock(raw_rwlock_t *lock) static void inline arch_read_lock(arch_rwlock_t *lock)
{ {
unsigned long tmp1, tmp2; unsigned long tmp1, tmp2;
@ -115,7 +115,7 @@ static void inline arch_read_lock(raw_rwlock_t *lock)
: "memory"); : "memory");
} }
static int inline arch_read_trylock(raw_rwlock_t *lock) static int inline arch_read_trylock(arch_rwlock_t *lock)
{ {
int tmp1, tmp2; int tmp1, tmp2;
@ -136,7 +136,7 @@ static int inline arch_read_trylock(raw_rwlock_t *lock)
return tmp1; return tmp1;
} }
static void inline arch_read_unlock(raw_rwlock_t *lock) static void inline arch_read_unlock(arch_rwlock_t *lock)
{ {
unsigned long tmp1, tmp2; unsigned long tmp1, tmp2;
@ -152,7 +152,7 @@ static void inline arch_read_unlock(raw_rwlock_t *lock)
: "memory"); : "memory");
} }
static void inline arch_write_lock(raw_rwlock_t *lock) static void inline arch_write_lock(arch_rwlock_t *lock)
{ {
unsigned long mask, tmp1, tmp2; unsigned long mask, tmp1, tmp2;
@ -177,7 +177,7 @@ static void inline arch_write_lock(raw_rwlock_t *lock)
: "memory"); : "memory");
} }
static void inline arch_write_unlock(raw_rwlock_t *lock) static void inline arch_write_unlock(arch_rwlock_t *lock)
{ {
__asm__ __volatile__( __asm__ __volatile__(
" stw %%g0, [%0]" " stw %%g0, [%0]"
@ -186,7 +186,7 @@ static void inline arch_write_unlock(raw_rwlock_t *lock)
: "memory"); : "memory");
} }
static int inline arch_write_trylock(raw_rwlock_t *lock) static int inline arch_write_trylock(arch_rwlock_t *lock)
{ {
unsigned long mask, tmp1, tmp2, result; unsigned long mask, tmp1, tmp2, result;

4
arch/sparc/include/asm/spinlock_types.h
View file

@ -13,8 +13,8 @@ typedef struct {
typedef struct { typedef struct {
volatile unsigned int lock; volatile unsigned int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { 0 } #define __ARCH_RW_LOCK_UNLOCKED { 0 }
#endif #endif

16
arch/x86/include/asm/spinlock.h
View file

@ -232,7 +232,7 @@ static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
* read_can_lock - would read_trylock() succeed? * read_can_lock - would read_trylock() succeed?
* @lock: the rwlock in question. * @lock: the rwlock in question.
*/ */
static inline int __raw_read_can_lock(raw_rwlock_t *lock) static inline int __raw_read_can_lock(arch_rwlock_t *lock)
{ {
return (int)(lock)->lock > 0; return (int)(lock)->lock > 0;
} }
@ -241,12 +241,12 @@ static inline int __raw_read_can_lock(raw_rwlock_t *lock)
* write_can_lock - would write_trylock() succeed? * write_can_lock - would write_trylock() succeed?
* @lock: the rwlock in question. * @lock: the rwlock in question.
*/ */
static inline int __raw_write_can_lock(raw_rwlock_t *lock) static inline int __raw_write_can_lock(arch_rwlock_t *lock)
{ {
return (lock)->lock == RW_LOCK_BIAS; return (lock)->lock == RW_LOCK_BIAS;
} }
static inline void __raw_read_lock(raw_rwlock_t *rw) static inline void __raw_read_lock(arch_rwlock_t *rw)
{ {
asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t"
"jns 1f\n" "jns 1f\n"
@ -255,7 +255,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
::LOCK_PTR_REG (rw) : "memory"); ::LOCK_PTR_REG (rw) : "memory");
} }
static inline void __raw_write_lock(raw_rwlock_t *rw) static inline void __raw_write_lock(arch_rwlock_t *rw)
{ {
asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t" asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t"
"jz 1f\n" "jz 1f\n"
@ -264,7 +264,7 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
::LOCK_PTR_REG (rw), "i" (RW_LOCK_BIAS) : "memory"); ::LOCK_PTR_REG (rw), "i" (RW_LOCK_BIAS) : "memory");
} }
static inline int __raw_read_trylock(raw_rwlock_t *lock) static inline int __raw_read_trylock(arch_rwlock_t *lock)
{ {
atomic_t *count = (atomic_t *)lock; atomic_t *count = (atomic_t *)lock;
@ -274,7 +274,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *lock)
return 0; return 0;
} }
static inline int __raw_write_trylock(raw_rwlock_t *lock) static inline int __raw_write_trylock(arch_rwlock_t *lock)
{ {
atomic_t *count = (atomic_t *)lock; atomic_t *count = (atomic_t *)lock;
@ -284,12 +284,12 @@ static inline int __raw_write_trylock(raw_rwlock_t *lock)
return 0; return 0;
} }
static inline void __raw_read_unlock(raw_rwlock_t *rw) static inline void __raw_read_unlock(arch_rwlock_t *rw)
{ {
asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory"); asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory");
} }
static inline void __raw_write_unlock(raw_rwlock_t *rw) static inline void __raw_write_unlock(arch_rwlock_t *rw)
{ {
asm volatile(LOCK_PREFIX "addl %1, %0" asm volatile(LOCK_PREFIX "addl %1, %0"
: "+m" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory"); : "+m" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory");

4
arch/x86/include/asm/spinlock_types.h
View file

@ -13,8 +13,8 @@ typedef struct arch_spinlock {
typedef struct { typedef struct {
unsigned int lock; unsigned int lock;
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { RW_LOCK_BIAS } #define __ARCH_RW_LOCK_UNLOCKED { RW_LOCK_BIAS }
#endif /* _ASM_X86_SPINLOCK_TYPES_H */ #endif /* _ASM_X86_SPINLOCK_TYPES_H */

6
include/linux/rwlock_types.h
View file

@ -9,7 +9,7 @@
* Released under the General Public License (GPL). * Released under the General Public License (GPL).
*/ */
typedef struct { typedef struct {
raw_rwlock_t raw_lock; arch_rwlock_t raw_lock;
#ifdef CONFIG_GENERIC_LOCKBREAK #ifdef CONFIG_GENERIC_LOCKBREAK
unsigned int break_lock; unsigned int break_lock;
#endif #endif
@ -32,14 +32,14 @@ typedef struct {
#ifdef CONFIG_DEBUG_SPINLOCK #ifdef CONFIG_DEBUG_SPINLOCK
#define __RW_LOCK_UNLOCKED(lockname) \ #define __RW_LOCK_UNLOCKED(lockname) \
(rwlock_t) { .raw_lock = __RAW_RW_LOCK_UNLOCKED, \ (rwlock_t) { .raw_lock = __ARCH_RW_LOCK_UNLOCKED, \
.magic = RWLOCK_MAGIC, \ .magic = RWLOCK_MAGIC, \
.owner = SPINLOCK_OWNER_INIT, \ .owner = SPINLOCK_OWNER_INIT, \
.owner_cpu = -1, \ .owner_cpu = -1, \
RW_DEP_MAP_INIT(lockname) } RW_DEP_MAP_INIT(lockname) }
#else #else
#define __RW_LOCK_UNLOCKED(lockname) \ #define __RW_LOCK_UNLOCKED(lockname) \
(rwlock_t) { .raw_lock = __RAW_RW_LOCK_UNLOCKED, \ (rwlock_t) { .raw_lock = __ARCH_RW_LOCK_UNLOCKED, \
RW_DEP_MAP_INIT(lockname) } RW_DEP_MAP_INIT(lockname) }
#endif #endif

4
include/linux/spinlock.h
View file

@ -8,7 +8,7 @@
* *
* on SMP builds: * on SMP builds:
* *
* asm/spinlock_types.h: contains the arch_spinlock_t/raw_rwlock_t and the * asm/spinlock_types.h: contains the arch_spinlock_t/arch_rwlock_t and the
* initializers * initializers
* *
* linux/spinlock_types.h: * linux/spinlock_types.h:
@ -75,7 +75,7 @@
#define __lockfunc __attribute__((section(".spinlock.text"))) #define __lockfunc __attribute__((section(".spinlock.text")))
/* /*
* Pull the arch_spinlock_t and raw_rwlock_t definitions: * Pull the arch_spinlock_t and arch_rwlock_t definitions:
*/ */
#include <linux/spinlock_types.h> #include <linux/spinlock_types.h>

4
include/linux/spinlock_types_up.h
View file

@ -30,8 +30,8 @@ typedef struct { } arch_spinlock_t;
typedef struct { typedef struct {
/* no debug version on UP */ /* no debug version on UP */
} raw_rwlock_t; } arch_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { } #define __ARCH_RW_LOCK_UNLOCKED { }
#endif /* __LINUX_SPINLOCK_TYPES_UP_H */ #endif /* __LINUX_SPINLOCK_TYPES_UP_H */

2
lib/spinlock_debug.c
View file

@ -41,7 +41,7 @@ void __rwlock_init(rwlock_t *lock, const char *name,
debug_check_no_locks_freed((void *)lock, sizeof(*lock)); debug_check_no_locks_freed((void *)lock, sizeof(*lock));
lockdep_init_map(&lock->dep_map, name, key, 0); lockdep_init_map(&lock->dep_map, name, key, 0);
#endif #endif
lock->raw_lock = (raw_rwlock_t) __RAW_RW_LOCK_UNLOCKED; lock->raw_lock = (arch_rwlock_t) __ARCH_RW_LOCK_UNLOCKED;
lock->magic = RWLOCK_MAGIC; lock->magic = RWLOCK_MAGIC;
lock->owner = SPINLOCK_OWNER_INIT; lock->owner = SPINLOCK_OWNER_INIT;
lock->owner_cpu = -1; lock->owner_cpu = -1;