diff options
author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
commit | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch) | |
tree | bc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/linux/spinlock_up.h | |
parent | 21adb5284111190057db245cfc2b54091920c373 (diff) |
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/contrib/include/linux/spinlock_up.h')
-rw-r--r-- | libdde_linux26/contrib/include/linux/spinlock_up.h | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/libdde_linux26/contrib/include/linux/spinlock_up.h b/libdde_linux26/contrib/include/linux/spinlock_up.h deleted file mode 100644 index 938234c4..00000000 --- a/libdde_linux26/contrib/include/linux/spinlock_up.h +++ /dev/null @@ -1,75 +0,0 @@ -#ifndef __LINUX_SPINLOCK_UP_H -#define __LINUX_SPINLOCK_UP_H - -#ifndef __LINUX_SPINLOCK_H -# error "please don't include this file directly" -#endif - -/* - * include/linux/spinlock_up.h - UP-debug version of spinlocks. - * - * portions Copyright 2005, Red Hat, Inc., Ingo Molnar - * Released under the General Public License (GPL). - * - * In the debug case, 1 means unlocked, 0 means locked. (the values - * are inverted, to catch initialization bugs) - * - * No atomicity anywhere, we are on UP. - */ - -#ifdef CONFIG_DEBUG_SPINLOCK -#define __raw_spin_is_locked(x) ((x)->slock == 0) - -static inline void __raw_spin_lock(raw_spinlock_t *lock) -{ - lock->slock = 0; -} - -static inline void -__raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) -{ - local_irq_save(flags); - lock->slock = 0; -} - -static inline int __raw_spin_trylock(raw_spinlock_t *lock) -{ - char oldval = lock->slock; - - lock->slock = 0; - - return oldval > 0; -} - -static inline void __raw_spin_unlock(raw_spinlock_t *lock) -{ - lock->slock = 1; -} - -/* - * Read-write spinlocks. No debug version. - */ -#define __raw_read_lock(lock) do { (void)(lock); } while (0) -#define __raw_write_lock(lock) do { (void)(lock); } while (0) -#define __raw_read_trylock(lock) ({ (void)(lock); 1; }) -#define __raw_write_trylock(lock) ({ (void)(lock); 1; }) -#define __raw_read_unlock(lock) do { (void)(lock); } while (0) -#define __raw_write_unlock(lock) do { (void)(lock); } while (0) - -#else /* DEBUG_SPINLOCK */ -#define __raw_spin_is_locked(lock) ((void)(lock), 0) -/* for sched.c and kernel_lock.c: */ -# define __raw_spin_lock(lock) do { (void)(lock); } while (0) -# define __raw_spin_unlock(lock) do { (void)(lock); } while (0) -# define __raw_spin_trylock(lock) ({ (void)(lock); 1; }) -#endif /* DEBUG_SPINLOCK */ - -#define __raw_spin_is_contended(lock) (((void)(lock), 0)) - -#define __raw_read_can_lock(lock) (((void)(lock), 1)) -#define __raw_write_can_lock(lock) (((void)(lock), 1)) - -#define __raw_spin_unlock_wait(lock) \ - do { cpu_relax(); } while (__raw_spin_is_locked(lock)) - -#endif /* __LINUX_SPINLOCK_UP_H */ |