diff options
author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2011-05-08 23:11:02 +0200 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2011-05-08 23:11:02 +0200 |
commit | cded208c7ea6d107dcbfdb2e2d4622daf41c2886 (patch) | |
tree | a04a03736b0a928c2954382f924aadb105ee39cc /libdde_linux26/include/linux/.svn/text-base/spinlock.h.svn-base | |
parent | fc82e00ca1e174cb961dea6ad37622e9b26cd899 (diff) |
remove .svn directories
Diffstat (limited to 'libdde_linux26/include/linux/.svn/text-base/spinlock.h.svn-base')
-rw-r--r-- | libdde_linux26/include/linux/.svn/text-base/spinlock.h.svn-base | 467 |
1 files changed, 0 insertions, 467 deletions
diff --git a/libdde_linux26/include/linux/.svn/text-base/spinlock.h.svn-base b/libdde_linux26/include/linux/.svn/text-base/spinlock.h.svn-base deleted file mode 100644 index ab862f99..00000000 --- a/libdde_linux26/include/linux/.svn/text-base/spinlock.h.svn-base +++ /dev/null @@ -1,467 +0,0 @@ -#ifndef __LINUX_SPINLOCK_H -#define __LINUX_SPINLOCK_H - -/* - * include/linux/spinlock.h - generic spinlock/rwlock declarations - * - * here's the role of the various spinlock/rwlock related include files: - * - * on SMP builds: - * - * asm/spinlock_types.h: contains the raw_spinlock_t/raw_rwlock_t and the - * initializers - * - * linux/spinlock_types.h: - * defines the generic type and initializers - * - * asm/spinlock.h: contains the __raw_spin_*()/etc. lowlevel - * implementations, mostly inline assembly code - * - * (also included on UP-debug builds:) - * - * linux/spinlock_api_smp.h: - * contains the prototypes for the _spin_*() APIs. - * - * linux/spinlock.h: builds the final spin_*() APIs. - * - * on UP builds: - * - * linux/spinlock_type_up.h: - * contains the generic, simplified UP spinlock type. - * (which is an empty structure on non-debug builds) - * - * linux/spinlock_types.h: - * defines the generic type and initializers - * - * linux/spinlock_up.h: - * contains the __raw_spin_*()/etc. version of UP - * builds. (which are NOPs on non-debug, non-preempt - * builds) - * - * (included on UP-non-debug builds:) - * - * linux/spinlock_api_up.h: - * builds the _spin_*() APIs. - * - * linux/spinlock.h: builds the final spin_*() APIs. - */ - -#include <linux/typecheck.h> -#include <linux/preempt.h> -#include <linux/linkage.h> -#include <linux/compiler.h> -#include <linux/thread_info.h> -#include <linux/kernel.h> -#include <linux/stringify.h> -#include <linux/bottom_half.h> - -#include <asm/system.h> - -/* - * Must define these before including other files, inline functions need them - */ -#define LOCK_SECTION_NAME ".text.lock."KBUILD_BASENAME - -#define LOCK_SECTION_START(extra) \ - ".subsection 1\n\t" \ - extra \ - ".ifndef " LOCK_SECTION_NAME "\n\t" \ - LOCK_SECTION_NAME ":\n\t" \ - ".endif\n" - -#define LOCK_SECTION_END \ - ".previous\n\t" - -#define __lockfunc __attribute__((section(".spinlock.text"))) - -/* - * Pull the raw_spinlock_t and raw_rwlock_t definitions: - */ -#include <linux/spinlock_types.h> - -#ifndef DDE_LINUX -extern int __lockfunc generic__raw_read_trylock(raw_rwlock_t *lock); - -/* - * Pull the __raw*() functions/declarations (UP-nondebug doesnt need them): - */ -#ifdef CONFIG_SMP -# include <asm/spinlock.h> -#else -# include <linux/spinlock_up.h> -#endif - -#ifdef CONFIG_DEBUG_SPINLOCK - extern void __spin_lock_init(spinlock_t *lock, const char *name, - struct lock_class_key *key); -# define spin_lock_init(lock) \ -do { \ - static struct lock_class_key __key; \ - \ - __spin_lock_init((lock), #lock, &__key); \ -} while (0) - -#else -# define spin_lock_init(lock) \ - do { *(lock) = SPIN_LOCK_UNLOCKED; } while (0) -#endif - -#ifdef CONFIG_DEBUG_SPINLOCK - extern void __rwlock_init(rwlock_t *lock, const char *name, - struct lock_class_key *key); -# define rwlock_init(lock) \ -do { \ - static struct lock_class_key __key; \ - \ - __rwlock_init((lock), #lock, &__key); \ -} while (0) -#else -# define rwlock_init(lock) \ - do { *(lock) = RW_LOCK_UNLOCKED; } while (0) -#endif - -#define spin_is_locked(lock) __raw_spin_is_locked(&(lock)->raw_lock) - -#ifdef CONFIG_GENERIC_LOCKBREAK -#define spin_is_contended(lock) ((lock)->break_lock) -#else - -#ifdef __raw_spin_is_contended -#define spin_is_contended(lock) __raw_spin_is_contended(&(lock)->raw_lock) -#else -#define spin_is_contended(lock) (((void)(lock), 0)) -#endif /*__raw_spin_is_contended*/ -#endif - -/** - * spin_unlock_wait - wait until the spinlock gets unlocked - * @lock: the spinlock in question. - */ -#define spin_unlock_wait(lock) __raw_spin_unlock_wait(&(lock)->raw_lock) - -/* - * Pull the _spin_*()/_read_*()/_write_*() functions/declarations: - */ -#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK) -# include <linux/spinlock_api_smp.h> -#else -# include <linux/spinlock_api_up.h> -#endif - -#ifdef CONFIG_DEBUG_SPINLOCK - extern void _raw_spin_lock(spinlock_t *lock); -#define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock) - extern int _raw_spin_trylock(spinlock_t *lock); - extern void _raw_spin_unlock(spinlock_t *lock); - extern void _raw_read_lock(rwlock_t *lock); - extern int _raw_read_trylock(rwlock_t *lock); - extern void _raw_read_unlock(rwlock_t *lock); - extern void _raw_write_lock(rwlock_t *lock); - extern int _raw_write_trylock(rwlock_t *lock); - extern void _raw_write_unlock(rwlock_t *lock); -#else -# define _raw_spin_lock(lock) __raw_spin_lock(&(lock)->raw_lock) -# define _raw_spin_lock_flags(lock, flags) \ - __raw_spin_lock_flags(&(lock)->raw_lock, *(flags)) -# define _raw_spin_trylock(lock) __raw_spin_trylock(&(lock)->raw_lock) -# define _raw_spin_unlock(lock) __raw_spin_unlock(&(lock)->raw_lock) -# define _raw_read_lock(rwlock) __raw_read_lock(&(rwlock)->raw_lock) -# define _raw_read_trylock(rwlock) __raw_read_trylock(&(rwlock)->raw_lock) -# define _raw_read_unlock(rwlock) __raw_read_unlock(&(rwlock)->raw_lock) -# define _raw_write_lock(rwlock) __raw_write_lock(&(rwlock)->raw_lock) -# define _raw_write_trylock(rwlock) __raw_write_trylock(&(rwlock)->raw_lock) -# define _raw_write_unlock(rwlock) __raw_write_unlock(&(rwlock)->raw_lock) -#endif - -#define read_can_lock(rwlock) __raw_read_can_lock(&(rwlock)->raw_lock) -#define write_can_lock(rwlock) __raw_write_can_lock(&(rwlock)->raw_lock) - -/* - * Define the various spin_lock and rw_lock methods. Note we define these - * regardless of whether CONFIG_SMP or CONFIG_PREEMPT are set. The various - * methods are defined as nops in the case they are not required. - */ -#define spin_trylock(lock) __cond_lock(lock, _spin_trylock(lock)) -#define read_trylock(lock) __cond_lock(lock, _read_trylock(lock)) -#define write_trylock(lock) __cond_lock(lock, _write_trylock(lock)) - -#define spin_lock(lock) _spin_lock(lock) - -#ifdef CONFIG_DEBUG_LOCK_ALLOC -# define spin_lock_nested(lock, subclass) _spin_lock_nested(lock, subclass) -# define spin_lock_nest_lock(lock, nest_lock) \ - do { \ - typecheck(struct lockdep_map *, &(nest_lock)->dep_map);\ - _spin_lock_nest_lock(lock, &(nest_lock)->dep_map); \ - } while (0) -#else -# define spin_lock_nested(lock, subclass) _spin_lock(lock) -# define spin_lock_nest_lock(lock, nest_lock) _spin_lock(lock) -#endif - -#define write_lock(lock) _write_lock(lock) -#define read_lock(lock) _read_lock(lock) - -#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK) - -#define spin_lock_irqsave(lock, flags) \ - do { \ - typecheck(unsigned long, flags); \ - flags = _spin_lock_irqsave(lock); \ - } while (0) -#define read_lock_irqsave(lock, flags) \ - do { \ - typecheck(unsigned long, flags); \ - flags = _read_lock_irqsave(lock); \ - } while (0) -#define write_lock_irqsave(lock, flags) \ - do { \ - typecheck(unsigned long, flags); \ - flags = _write_lock_irqsave(lock); \ - } while (0) - -#ifdef CONFIG_DEBUG_LOCK_ALLOC -#define spin_lock_irqsave_nested(lock, flags, subclass) \ - do { \ - typecheck(unsigned long, flags); \ - flags = _spin_lock_irqsave_nested(lock, subclass); \ - } while (0) -#else -#define spin_lock_irqsave_nested(lock, flags, subclass) \ - do { \ - typecheck(unsigned long, flags); \ - flags = _spin_lock_irqsave(lock); \ - } while (0) -#endif - -#else - -#define spin_lock_irqsave(lock, flags) \ - do { \ - typecheck(unsigned long, flags); \ - _spin_lock_irqsave(lock, flags); \ - } while (0) -#define read_lock_irqsave(lock, flags) \ - do { \ - typecheck(unsigned long, flags); \ - _read_lock_irqsave(lock, flags); \ - } while (0) -#define write_lock_irqsave(lock, flags) \ - do { \ - typecheck(unsigned long, flags); \ - _write_lock_irqsave(lock, flags); \ - } while (0) -#define spin_lock_irqsave_nested(lock, flags, subclass) \ - spin_lock_irqsave(lock, flags) - -#endif - -#define spin_lock_irq(lock) _spin_lock_irq(lock) -#define spin_lock_bh(lock) _spin_lock_bh(lock) - -#define read_lock_irq(lock) _read_lock_irq(lock) -#define read_lock_bh(lock) _read_lock_bh(lock) - -#define write_lock_irq(lock) _write_lock_irq(lock) -#define write_lock_bh(lock) _write_lock_bh(lock) - -/* - * We inline the unlock functions in the nondebug case: - */ -#if defined(CONFIG_DEBUG_SPINLOCK) || defined(CONFIG_PREEMPT) || \ - !defined(CONFIG_SMP) -# define spin_unlock(lock) _spin_unlock(lock) -# define read_unlock(lock) _read_unlock(lock) -# define write_unlock(lock) _write_unlock(lock) -# define spin_unlock_irq(lock) _spin_unlock_irq(lock) -# define read_unlock_irq(lock) _read_unlock_irq(lock) -# define write_unlock_irq(lock) _write_unlock_irq(lock) -#else -# define spin_unlock(lock) \ - do {__raw_spin_unlock(&(lock)->raw_lock); __release(lock); } while (0) -# define read_unlock(lock) \ - do {__raw_read_unlock(&(lock)->raw_lock); __release(lock); } while (0) -# define write_unlock(lock) \ - do {__raw_write_unlock(&(lock)->raw_lock); __release(lock); } while (0) -# define spin_unlock_irq(lock) \ -do { \ - __raw_spin_unlock(&(lock)->raw_lock); \ - __release(lock); \ - local_irq_enable(); \ -} while (0) -# define read_unlock_irq(lock) \ -do { \ - __raw_read_unlock(&(lock)->raw_lock); \ - __release(lock); \ - local_irq_enable(); \ -} while (0) -# define write_unlock_irq(lock) \ -do { \ - __raw_write_unlock(&(lock)->raw_lock); \ - __release(lock); \ - local_irq_enable(); \ -} while (0) -#endif - -#define spin_unlock_irqrestore(lock, flags) \ - do { \ - typecheck(unsigned long, flags); \ - _spin_unlock_irqrestore(lock, flags); \ - } while (0) -#define spin_unlock_bh(lock) _spin_unlock_bh(lock) - -#define read_unlock_irqrestore(lock, flags) \ - do { \ - typecheck(unsigned long, flags); \ - _read_unlock_irqrestore(lock, flags); \ - } while (0) -#define read_unlock_bh(lock) _read_unlock_bh(lock) - -#define write_unlock_irqrestore(lock, flags) \ - do { \ - typecheck(unsigned long, flags); \ - _write_unlock_irqrestore(lock, flags); \ - } while (0) -#define write_unlock_bh(lock) _write_unlock_bh(lock) - -#define spin_trylock_bh(lock) __cond_lock(lock, _spin_trylock_bh(lock)) - -#define spin_trylock_irq(lock) \ -({ \ - local_irq_disable(); \ - spin_trylock(lock) ? \ - 1 : ({ local_irq_enable(); 0; }); \ -}) - -#define spin_trylock_irqsave(lock, flags) \ -({ \ - local_irq_save(flags); \ - spin_trylock(lock) ? \ - 1 : ({ local_irq_restore(flags); 0; }); \ -}) - -#define write_trylock_irqsave(lock, flags) \ -({ \ - local_irq_save(flags); \ - write_trylock(lock) ? \ - 1 : ({ local_irq_restore(flags); 0; }); \ -}) - -/* - * Pull the atomic_t declaration: - * (asm-mips/atomic.h needs above definitions) - */ -#include <asm/atomic.h> -/** - * atomic_dec_and_lock - lock on reaching reference count zero - * @atomic: the atomic counter - * @lock: the spinlock in question - * - * Decrements @atomic by 1. If the result is 0, returns true and locks - * @lock. Returns false for all other cases. - */ -extern int _atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock); -#define atomic_dec_and_lock(atomic, lock) \ - __cond_lock(lock, _atomic_dec_and_lock(atomic, lock)) - -/** - * spin_can_lock - would spin_trylock() succeed? - * @lock: the spinlock in question. - */ -#define spin_can_lock(lock) (!spin_is_locked(lock)) - -#else /* DDE_LINUX */ - -#define spin_lock_init(l) \ - do { \ - ddekit_lock_init(&(l)->ddekit_lock); \ - (l)->need_init = 0; \ - } while (0); - -#define rwlock_init(l) spin_lock_init(l) - -#define COND_INIT_LOCK(l) \ - do { \ - if ((l)->need_init) spin_lock_init(l); \ - } while (0); - -#define spin_lock(lock) \ - do { \ - COND_INIT_LOCK(lock); \ - preempt_disable(); \ - ddekit_lock_lock(&(lock)->ddekit_lock); \ - } while (0) - -#define read_lock(lock) spin_lock(lock) -#define write_lock(lock) spin_lock(lock) -#define spin_lock_irq(lock) local_irq_disable(); spin_lock(lock) -#define spin_lock_bh(lock) spin_lock(lock) -#define read_lock_irq(lock) spin_lock_irq(lock) -#define read_lock_bh(lock) spin_lock_bh(lock) -#define write_lock_irq(lock) spin_lock_irq(lock) -#define write_lock_bh(lock) spin_lock_bh(lock) - -#define spin_unlock(lock) \ - do { \ - COND_INIT_LOCK(lock); \ - ddekit_lock_unlock(&(lock)->ddekit_lock); \ - preempt_enable(); \ - } while (0) - -#define read_unlock(lock) spin_unlock(lock) -#define write_unlock(lock) spin_unlock(lock) - -#define spin_unlock_irq(lock) spin_unlock(lock); local_irq_enable() -#define spin_unlock_bh(lock) spin_unlock(lock) -#define read_unlock_irq(lock) spin_unlock_irq(lock) -#define read_unlock_bh(lock) spin_unlock_bh(lock) -#define write_unlock_irq(lock) spin_unlock_irq(lock) -#define write_unlock_bh(lock) spin_unlock_bh(lock) - -#define spin_lock_irqsave(lock, flags) \ - do { \ - local_irq_save(flags); \ - spin_lock(lock);\ - } while (0); - -#define read_lock_irqsave(lock, flags) spin_lock_irqsave(lock, flags) -#define write_lock_irqsave(lock, flags) spin_lock_irqsave(lock, flags) - -#define spin_unlock_irqrestore(lock, flags) \ - do { \ - spin_unlock(lock); \ - local_irq_restore(flags); \ - } while (0); - -#define read_unlock_irqrestore(lock, flags) spin_unlock_irqrestore(lock, flags) -#define write_unlock_irqrestore(lock, flags) spin_unlock_irqrestore(lock, flags) - -static int __lockfunc spin_trylock(spinlock_t *lock) -{ - COND_INIT_LOCK(lock); - return ddekit_lock_try_lock(&lock->ddekit_lock) == 0; -} - -#define _raw_spin_lock(l) spin_lock(l) -#define _raw_spin_unlock(l) spin_unlock(l) -#define _raw_spin_trylock(l) spin_trylock(l) - -#define spin_trylock_irqsave(lock, flags) \ -({ \ - local_irq_save(flags); \ - spin_trylock(lock) ? \ - 1 : ({ local_irq_restore(flags); 0; }); \ -}) - -#define read_trylock(l) spin_trylock(l) -#define write_trylock(l) read_trylock(l) - -#define spin_is_locked(x) \ - (ddekit_lock_owner(&(x)->ddekit_lock) != 0) - -#define assert_spin_locked(x) BUG_ON(!spin_is_locked(x)) - - -#endif /* DDE_LINUX */ - -#endif /* __LINUX_SPINLOCK_H */ |