| Dan Albert | 287553d | 2017-02-16 10:47:51 -0800 | [diff] [blame] | 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_UP_H |
| 13 | #define __LINUX_SPINLOCK_UP_H |
| 14 | |
| 15 | #ifndef __LINUX_SPINLOCK_H |
| 16 | #error "please don't include this file directly" |
| 17 | #endif |
| 18 | |
| 19 | #define __raw_spin_is_locked(lock) ((void)(lock), 0) |
| 20 | |
| 21 | #define __raw_spin_lock(lock) do { (void)(lock); } while (0) |
| 22 | #define __raw_spin_unlock(lock) do { (void)(lock); } while (0) |
| 23 | #define __raw_spin_trylock(lock) ({ (void)(lock); 1; }) |
| 24 | |
| 25 | #define __raw_read_can_lock(lock) (((void)(lock), 1)) |
| 26 | #define __raw_write_can_lock(lock) (((void)(lock), 1)) |
| 27 | |
| 28 | #define __raw_spin_unlock_wait(lock) do { cpu_relax(); } while (__raw_spin_is_locked(lock)) |
| 29 | |
| 30 | #endif |