| 41,6 → 41,29 |
|---|
| int val; |
| }; |
| |
| /* |
| * SPINLOCK_DECLARE is to be used for dynamically allocated spinlocks, |
| * where the lock gets initialized in run time. |
| */ |
| #define SPINLOCK_DECLARE(slname) spinlock_t slname |
| |
| /* |
| * SPINLOCK_INITIALIZE is to be used for statically allocated spinlocks. |
| * It declares and initializes the lock. |
| */ |
| #ifdef CONFIG_DEBUG_SPINLOCK |
| #define SPINLOCK_INITIALIZE(slname) \ |
| spinlock_t slname = { \ |
| .name = #slname, \ |
| .val = 0 \ |
| } |
| #else |
| #define SPINLOCK_INITIALIZE(slname) \ |
| spinlock_t slname = { \ |
| .val = 0 \ |
| } |
| #endif |
| |
| extern void spinlock_initialize(spinlock_t *sl, char *name); |
| extern void spinlock_lock(spinlock_t *sl); |
| extern int spinlock_trylock(spinlock_t *sl); |
| 48,8 → 71,9 |
|---|
| |
| #else |
| |
| struct spinlock { |
| }; |
| /* On UP systems, spinlocks are effectively left out. */ |
| #define SPINLOCK_DECLARE(name) |
| #define SPINLOCK_INITIALIZE(name) |
| |
| #define spinlock_initialize(x,name) |
| #define spinlock_lock(x) preemption_disable() |