Searched refs:use_global_lock (Results 1 - 1 of 1) sorted by relevance

/linux-master/ipc/
H A Dsem.c124 unsigned int use_global_lock;/* >0: global lock required */ member in struct:sem_array
202 * use_global_lock:
210 * 1) use_global_lock: (SEM_BARRIER_1)
220 * To prevent the compiler/cpu temporarily writing 0 to use_global_lock,
341 if (sma->use_global_lock > 0) {
347 WRITE_ONCE(sma->use_global_lock, USE_GLOBAL_LOCK_HYSTERESIS);
350 WRITE_ONCE(sma->use_global_lock, USE_GLOBAL_LOCK_HYSTERESIS);
371 if (sma->use_global_lock == 1) {
374 smp_store_release(&sma->use_global_lock, 0);
376 WRITE_ONCE(sma->use_global_lock,
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