X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=kernel%2Fspinlock.c;h=be6517fb9c14e66b4b4b0d7d40e91ac8b56ee06a;hb=d822ed1094032ab524344a9a474c93128d9c2159;hp=e6e13631843793a6e9facbbe8c783855096eb8cd;hpb=b7b40ade58e621851896aa261452df99d4e9d99b;p=safe%2Fjmp%2Flinux-2.6 diff --git a/kernel/spinlock.c b/kernel/spinlock.c index e6e1363..be6517f 100644 --- a/kernel/spinlock.c +++ b/kernel/spinlock.c @@ -32,6 +32,8 @@ * include/linux/spinlock_api_smp.h */ #else +#define raw_read_can_lock(l) read_can_lock(l) +#define raw_write_can_lock(l) write_can_lock(l) /* * We build the __lock_function inlines here. They are too large for * inlining all over the place, but here is only one user per function @@ -42,49 +44,49 @@ * towards that other CPU that it should break the lock ASAP. */ #define BUILD_LOCK_OPS(op, locktype) \ -void __lockfunc __##op##_lock(locktype##_t *lock) \ +void __lockfunc __raw_##op##_lock(locktype##_t *lock) \ { \ for (;;) { \ preempt_disable(); \ - if (likely(_raw_##op##_trylock(lock))) \ + if (likely(do_raw_##op##_trylock(lock))) \ break; \ preempt_enable(); \ \ if (!(lock)->break_lock) \ (lock)->break_lock = 1; \ - while (!op##_can_lock(lock) && (lock)->break_lock) \ - _raw_##op##_relax(&lock->raw_lock); \ + while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\ + arch_##op##_relax(&lock->raw_lock); \ } \ (lock)->break_lock = 0; \ } \ \ -unsigned long __lockfunc __##op##_lock_irqsave(locktype##_t *lock) \ +unsigned long __lockfunc __raw_##op##_lock_irqsave(locktype##_t *lock) \ { \ unsigned long flags; \ \ for (;;) { \ preempt_disable(); \ local_irq_save(flags); \ - if (likely(_raw_##op##_trylock(lock))) \ + if (likely(do_raw_##op##_trylock(lock))) \ break; \ local_irq_restore(flags); \ preempt_enable(); \ \ if (!(lock)->break_lock) \ (lock)->break_lock = 1; \ - while (!op##_can_lock(lock) && (lock)->break_lock) \ - _raw_##op##_relax(&lock->raw_lock); \ + while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\ + arch_##op##_relax(&lock->raw_lock); \ } \ (lock)->break_lock = 0; \ return flags; \ } \ \ -void __lockfunc __##op##_lock_irq(locktype##_t *lock) \ +void __lockfunc __raw_##op##_lock_irq(locktype##_t *lock) \ { \ - _##op##_lock_irqsave(lock); \ + _raw_##op##_lock_irqsave(lock); \ } \ \ -void __lockfunc __##op##_lock_bh(locktype##_t *lock) \ +void __lockfunc __raw_##op##_lock_bh(locktype##_t *lock) \ { \ unsigned long flags; \ \ @@ -93,7 +95,7 @@ void __lockfunc __##op##_lock_bh(locktype##_t *lock) \ /* irq-disabling. We use the generic preemption-aware */ \ /* function: */ \ /**/ \ - flags = _##op##_lock_irqsave(lock); \ + flags = _raw_##op##_lock_irqsave(lock); \ local_bh_disable(); \ local_irq_restore(flags); \ } \ @@ -107,247 +109,247 @@ void __lockfunc __##op##_lock_bh(locktype##_t *lock) \ * __[spin|read|write]_lock_irqsave() * __[spin|read|write]_lock_bh() */ -BUILD_LOCK_OPS(spin, spinlock); +BUILD_LOCK_OPS(spin, raw_spinlock); BUILD_LOCK_OPS(read, rwlock); BUILD_LOCK_OPS(write, rwlock); #endif #ifndef CONFIG_INLINE_SPIN_TRYLOCK -int __lockfunc _spin_trylock(spinlock_t *lock) +int __lockfunc _raw_spin_trylock(raw_spinlock_t *lock) { - return __spin_trylock(lock); + return __raw_spin_trylock(lock); } -EXPORT_SYMBOL(_spin_trylock); +EXPORT_SYMBOL(_raw_spin_trylock); #endif #ifndef CONFIG_INLINE_SPIN_TRYLOCK_BH -int __lockfunc _spin_trylock_bh(spinlock_t *lock) +int __lockfunc _raw_spin_trylock_bh(raw_spinlock_t *lock) { - return __spin_trylock_bh(lock); + return __raw_spin_trylock_bh(lock); } -EXPORT_SYMBOL(_spin_trylock_bh); +EXPORT_SYMBOL(_raw_spin_trylock_bh); #endif #ifndef CONFIG_INLINE_SPIN_LOCK -void __lockfunc _spin_lock(spinlock_t *lock) +void __lockfunc _raw_spin_lock(raw_spinlock_t *lock) { - __spin_lock(lock); + __raw_spin_lock(lock); } -EXPORT_SYMBOL(_spin_lock); +EXPORT_SYMBOL(_raw_spin_lock); #endif #ifndef CONFIG_INLINE_SPIN_LOCK_IRQSAVE -unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock) +unsigned long __lockfunc _raw_spin_lock_irqsave(raw_spinlock_t *lock) { - return __spin_lock_irqsave(lock); + return __raw_spin_lock_irqsave(lock); } -EXPORT_SYMBOL(_spin_lock_irqsave); +EXPORT_SYMBOL(_raw_spin_lock_irqsave); #endif #ifndef CONFIG_INLINE_SPIN_LOCK_IRQ -void __lockfunc _spin_lock_irq(spinlock_t *lock) +void __lockfunc _raw_spin_lock_irq(raw_spinlock_t *lock) { - __spin_lock_irq(lock); + __raw_spin_lock_irq(lock); } -EXPORT_SYMBOL(_spin_lock_irq); +EXPORT_SYMBOL(_raw_spin_lock_irq); #endif #ifndef CONFIG_INLINE_SPIN_LOCK_BH -void __lockfunc _spin_lock_bh(spinlock_t *lock) +void __lockfunc _raw_spin_lock_bh(raw_spinlock_t *lock) { - __spin_lock_bh(lock); + __raw_spin_lock_bh(lock); } -EXPORT_SYMBOL(_spin_lock_bh); +EXPORT_SYMBOL(_raw_spin_lock_bh); #endif #ifndef CONFIG_INLINE_SPIN_UNLOCK -void __lockfunc _spin_unlock(spinlock_t *lock) +void __lockfunc _raw_spin_unlock(raw_spinlock_t *lock) { - __spin_unlock(lock); + __raw_spin_unlock(lock); } -EXPORT_SYMBOL(_spin_unlock); +EXPORT_SYMBOL(_raw_spin_unlock); #endif #ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE -void __lockfunc _spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) +void __lockfunc _raw_spin_unlock_irqrestore(raw_spinlock_t *lock, unsigned long flags) { - __spin_unlock_irqrestore(lock, flags); + __raw_spin_unlock_irqrestore(lock, flags); } -EXPORT_SYMBOL(_spin_unlock_irqrestore); +EXPORT_SYMBOL(_raw_spin_unlock_irqrestore); #endif #ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQ -void __lockfunc _spin_unlock_irq(spinlock_t *lock) +void __lockfunc _raw_spin_unlock_irq(raw_spinlock_t *lock) { - __spin_unlock_irq(lock); + __raw_spin_unlock_irq(lock); } -EXPORT_SYMBOL(_spin_unlock_irq); +EXPORT_SYMBOL(_raw_spin_unlock_irq); #endif #ifndef CONFIG_INLINE_SPIN_UNLOCK_BH -void __lockfunc _spin_unlock_bh(spinlock_t *lock) +void __lockfunc _raw_spin_unlock_bh(raw_spinlock_t *lock) { - __spin_unlock_bh(lock); + __raw_spin_unlock_bh(lock); } -EXPORT_SYMBOL(_spin_unlock_bh); +EXPORT_SYMBOL(_raw_spin_unlock_bh); #endif #ifndef CONFIG_INLINE_READ_TRYLOCK -int __lockfunc _read_trylock(rwlock_t *lock) +int __lockfunc _raw_read_trylock(rwlock_t *lock) { - return __read_trylock(lock); + return __raw_read_trylock(lock); } -EXPORT_SYMBOL(_read_trylock); +EXPORT_SYMBOL(_raw_read_trylock); #endif #ifndef CONFIG_INLINE_READ_LOCK -void __lockfunc _read_lock(rwlock_t *lock) +void __lockfunc _raw_read_lock(rwlock_t *lock) { - __read_lock(lock); + __raw_read_lock(lock); } -EXPORT_SYMBOL(_read_lock); +EXPORT_SYMBOL(_raw_read_lock); #endif #ifndef CONFIG_INLINE_READ_LOCK_IRQSAVE -unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock) +unsigned long __lockfunc _raw_read_lock_irqsave(rwlock_t *lock) { - return __read_lock_irqsave(lock); + return __raw_read_lock_irqsave(lock); } -EXPORT_SYMBOL(_read_lock_irqsave); +EXPORT_SYMBOL(_raw_read_lock_irqsave); #endif #ifndef CONFIG_INLINE_READ_LOCK_IRQ -void __lockfunc _read_lock_irq(rwlock_t *lock) +void __lockfunc _raw_read_lock_irq(rwlock_t *lock) { - __read_lock_irq(lock); + __raw_read_lock_irq(lock); } -EXPORT_SYMBOL(_read_lock_irq); +EXPORT_SYMBOL(_raw_read_lock_irq); #endif #ifndef CONFIG_INLINE_READ_LOCK_BH -void __lockfunc _read_lock_bh(rwlock_t *lock) +void __lockfunc _raw_read_lock_bh(rwlock_t *lock) { - __read_lock_bh(lock); + __raw_read_lock_bh(lock); } -EXPORT_SYMBOL(_read_lock_bh); +EXPORT_SYMBOL(_raw_read_lock_bh); #endif #ifndef CONFIG_INLINE_READ_UNLOCK -void __lockfunc _read_unlock(rwlock_t *lock) +void __lockfunc _raw_read_unlock(rwlock_t *lock) { - __read_unlock(lock); + __raw_read_unlock(lock); } -EXPORT_SYMBOL(_read_unlock); +EXPORT_SYMBOL(_raw_read_unlock); #endif #ifndef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE -void __lockfunc _read_unlock_irqrestore(rwlock_t *lock, unsigned long flags) +void __lockfunc _raw_read_unlock_irqrestore(rwlock_t *lock, unsigned long flags) { - __read_unlock_irqrestore(lock, flags); + __raw_read_unlock_irqrestore(lock, flags); } -EXPORT_SYMBOL(_read_unlock_irqrestore); +EXPORT_SYMBOL(_raw_read_unlock_irqrestore); #endif #ifndef CONFIG_INLINE_READ_UNLOCK_IRQ -void __lockfunc _read_unlock_irq(rwlock_t *lock) +void __lockfunc _raw_read_unlock_irq(rwlock_t *lock) { - __read_unlock_irq(lock); + __raw_read_unlock_irq(lock); } -EXPORT_SYMBOL(_read_unlock_irq); +EXPORT_SYMBOL(_raw_read_unlock_irq); #endif #ifndef CONFIG_INLINE_READ_UNLOCK_BH -void __lockfunc _read_unlock_bh(rwlock_t *lock) +void __lockfunc _raw_read_unlock_bh(rwlock_t *lock) { - __read_unlock_bh(lock); + __raw_read_unlock_bh(lock); } -EXPORT_SYMBOL(_read_unlock_bh); +EXPORT_SYMBOL(_raw_read_unlock_bh); #endif #ifndef CONFIG_INLINE_WRITE_TRYLOCK -int __lockfunc _write_trylock(rwlock_t *lock) +int __lockfunc _raw_write_trylock(rwlock_t *lock) { - return __write_trylock(lock); + return __raw_write_trylock(lock); } -EXPORT_SYMBOL(_write_trylock); +EXPORT_SYMBOL(_raw_write_trylock); #endif #ifndef CONFIG_INLINE_WRITE_LOCK -void __lockfunc _write_lock(rwlock_t *lock) +void __lockfunc _raw_write_lock(rwlock_t *lock) { - __write_lock(lock); + __raw_write_lock(lock); } -EXPORT_SYMBOL(_write_lock); +EXPORT_SYMBOL(_raw_write_lock); #endif #ifndef CONFIG_INLINE_WRITE_LOCK_IRQSAVE -unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock) +unsigned long __lockfunc _raw_write_lock_irqsave(rwlock_t *lock) { - return __write_lock_irqsave(lock); + return __raw_write_lock_irqsave(lock); } -EXPORT_SYMBOL(_write_lock_irqsave); +EXPORT_SYMBOL(_raw_write_lock_irqsave); #endif #ifndef CONFIG_INLINE_WRITE_LOCK_IRQ -void __lockfunc _write_lock_irq(rwlock_t *lock) +void __lockfunc _raw_write_lock_irq(rwlock_t *lock) { - __write_lock_irq(lock); + __raw_write_lock_irq(lock); } -EXPORT_SYMBOL(_write_lock_irq); +EXPORT_SYMBOL(_raw_write_lock_irq); #endif #ifndef CONFIG_INLINE_WRITE_LOCK_BH -void __lockfunc _write_lock_bh(rwlock_t *lock) +void __lockfunc _raw_write_lock_bh(rwlock_t *lock) { - __write_lock_bh(lock); + __raw_write_lock_bh(lock); } -EXPORT_SYMBOL(_write_lock_bh); +EXPORT_SYMBOL(_raw_write_lock_bh); #endif #ifndef CONFIG_INLINE_WRITE_UNLOCK -void __lockfunc _write_unlock(rwlock_t *lock) +void __lockfunc _raw_write_unlock(rwlock_t *lock) { - __write_unlock(lock); + __raw_write_unlock(lock); } -EXPORT_SYMBOL(_write_unlock); +EXPORT_SYMBOL(_raw_write_unlock); #endif #ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE -void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags) +void __lockfunc _raw_write_unlock_irqrestore(rwlock_t *lock, unsigned long flags) { - __write_unlock_irqrestore(lock, flags); + __raw_write_unlock_irqrestore(lock, flags); } -EXPORT_SYMBOL(_write_unlock_irqrestore); +EXPORT_SYMBOL(_raw_write_unlock_irqrestore); #endif #ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQ -void __lockfunc _write_unlock_irq(rwlock_t *lock) +void __lockfunc _raw_write_unlock_irq(rwlock_t *lock) { - __write_unlock_irq(lock); + __raw_write_unlock_irq(lock); } -EXPORT_SYMBOL(_write_unlock_irq); +EXPORT_SYMBOL(_raw_write_unlock_irq); #endif #ifndef CONFIG_INLINE_WRITE_UNLOCK_BH -void __lockfunc _write_unlock_bh(rwlock_t *lock) +void __lockfunc _raw_write_unlock_bh(rwlock_t *lock) { - __write_unlock_bh(lock); + __raw_write_unlock_bh(lock); } -EXPORT_SYMBOL(_write_unlock_bh); +EXPORT_SYMBOL(_raw_write_unlock_bh); #endif #ifdef CONFIG_DEBUG_LOCK_ALLOC -void __lockfunc _spin_lock_nested(spinlock_t *lock, int subclass) +void __lockfunc _raw_spin_lock_nested(raw_spinlock_t *lock, int subclass) { preempt_disable(); spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); + LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock); } -EXPORT_SYMBOL(_spin_lock_nested); +EXPORT_SYMBOL(_raw_spin_lock_nested); -unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, +unsigned long __lockfunc _raw_spin_lock_irqsave_nested(raw_spinlock_t *lock, int subclass) { unsigned long flags; @@ -355,20 +357,20 @@ unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, local_irq_save(flags); preempt_disable(); spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_); - LOCK_CONTENDED_FLAGS(lock, _raw_spin_trylock, _raw_spin_lock, - _raw_spin_lock_flags, &flags); + LOCK_CONTENDED_FLAGS(lock, do_raw_spin_trylock, do_raw_spin_lock, + do_raw_spin_lock_flags, &flags); return flags; } -EXPORT_SYMBOL(_spin_lock_irqsave_nested); +EXPORT_SYMBOL(_raw_spin_lock_irqsave_nested); -void __lockfunc _spin_lock_nest_lock(spinlock_t *lock, +void __lockfunc _raw_spin_lock_nest_lock(raw_spinlock_t *lock, struct lockdep_map *nest_lock) { preempt_disable(); spin_acquire_nest(&lock->dep_map, 0, 0, nest_lock, _RET_IP_); - LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); + LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock); } -EXPORT_SYMBOL(_spin_lock_nest_lock); +EXPORT_SYMBOL(_raw_spin_lock_nest_lock); #endif