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@ -190,33 +190,6 @@ CK_ELIDE_TRYLOCK_PROTOTYPE(ck_rwlock_read, ck_rwlock_t,
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CK_CC_INLINE static void
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CK_CC_INLINE static void
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ck_rwlock_read_lock(ck_rwlock_t *rw)
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ck_rwlock_read_lock(ck_rwlock_t *rw)
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{
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for (;;) {
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while (ck_pr_load_32(&rw->writer) != 0)
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ck_pr_stall();
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ck_pr_inc_32(&rw->n_readers);
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/*
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* Serialize with respect to concurrent write
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* lock operation.
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*/
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ck_pr_fence_atomic_load();
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if (ck_pr_load_32(&rw->writer) == 0)
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break;
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ck_pr_dec_32(&rw->n_readers);
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}
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/* Acquire semantics are necessary. */
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ck_pr_fence_load();
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return;
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}
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CK_CC_INLINE static void
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ck_rwlock_read_latchlock(ck_rwlock_t *rw)
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{
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{
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uint32_t snapshot;
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uint32_t snapshot;
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