1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12 #ifndef __LINUX_SPINLOCK_TYPES_H 13 #define __LINUX_SPINLOCK_TYPES_H 14 15 #include <linux/lockdep.h> 16 17 #include <linux/spinlock_types_up.h> 18 19 typedef struct { 20 raw_spinlock_t raw_lock; 21 } spinlock_t; 22 23 #define SPINLOCK_MAGIC 0xdead4ead 24 25 typedef struct { 26 raw_rwlock_t raw_lock; 27 } rwlock_t; 28 29 #define RWLOCK_MAGIC 0xdeaf1eed 30 31 #define SPINLOCK_OWNER_INIT ((void *)-1L) 32 33 #define SPIN_DEP_MAP_INIT(lockname) 34 35 #define RW_DEP_MAP_INIT(lockname) 36 37 #define __SPIN_LOCK_UNLOCKED(lockname) (spinlock_t) { .raw_lock = __RAW_SPIN_LOCK_UNLOCKED, SPIN_DEP_MAP_INIT(lockname) } 38 #define __RW_LOCK_UNLOCKED(lockname) (rwlock_t) { .raw_lock = __RAW_RW_LOCK_UNLOCKED, RW_DEP_MAP_INIT(lockname) } 39 40 #define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init) 41 #define RW_LOCK_UNLOCKED __RW_LOCK_UNLOCKED(old_style_rw_init) 42 43 #define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x) 44 #define DEFINE_RWLOCK(x) rwlock_t x = __RW_LOCK_UNLOCKED(x) 45 46 #endif 47
