Revision 12c47213
| b/xseg/xtypes/xlock.h | ||
|---|---|---|
| 111 | 111 |
|
| 112 | 112 |
static inline unsigned long xlock_try_lock(struct xlock *lock, unsigned long who) |
| 113 | 113 |
{
|
| 114 |
return __sync_bool_compare_and_swap(&lock->owner, Noone, who); |
|
| 114 |
unsigned long owner; |
|
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owner = *(volatile unsigned long *)(&lock->owner); |
|
| 116 |
if (owner == Noone) |
|
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return __sync_bool_compare_and_swap(&lock->owner, Noone, who); |
|
| 118 |
return 0; |
|
| 115 | 119 |
} |
| 116 | 120 |
|
| 117 | 121 |
static inline void xlock_release(struct xlock *lock) |
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