76 	tnf_block_header_t 	*block;  in tnfw_b_alloc_block()  local
105 	bn = fh->next_alloc.block[gen & TNFW_B_ALLOC_LO];  in tnfw_b_alloc_block()
123 		block = (tnf_block_header_t *)  in tnfw_b_alloc_block()
126 		if (lock_try(&block->A_lock))  in tnfw_b_alloc_block()
127 			if (block->generation < gen &&  in tnfw_b_alloc_block()
128 			    lock_try(&block->B_lock))  in tnfw_b_alloc_block()
131 				lock_clear(&block->A_lock);  in tnfw_b_alloc_block()
135 		bn = fh->next_alloc.block[gen & TNFW_B_ALLOC_LO];  in tnfw_b_alloc_block()
152 	tmp_bn = fh->next_alloc.block[tmp_gen & TNFW_B_ALLOC_LO];  in tnfw_b_alloc_block()
160 		fh->next_alloc.block[new_gen & TNFW_B_ALLOC_LO] = new_bn;  in tnfw_b_alloc_block()
170 	block->bytes_valid = sizeof (tnf_block_header_t);  in tnfw_b_alloc_block()
171 	block->next_block = NULL;  in tnfw_b_alloc_block()
173 	block->generation = istag ? TNF_TAG_GENERATION_NUM : gen;  in tnfw_b_alloc_block()
175 	lock_clear(&block->B_lock);  in tnfw_b_alloc_block()
176 	return (block);  in tnfw_b_alloc_block()
185 		block = (tnf_block_header_t *)  in tnfw_b_alloc_block()
194 		if (lock_try(&block->A_lock) &&  in tnfw_b_alloc_block()
195 		    block->generation == 0) {  in tnfw_b_alloc_block()
231 	tnf_block_header_t	*block, *new_block;  in tnfw_b_alloc()  local
236 	block = pos->tnfw_w_block;  in tnfw_b_alloc()
241 	if (block == NULL || offset + size > TNF_BLOCK_SIZE) {  in tnfw_b_alloc()
257 		if (block != NULL) {  in tnfw_b_alloc()
258 			if (block->bytes_valid == offset &&  in tnfw_b_alloc()
261 				lock_clear(&block->A_lock);  in tnfw_b_alloc()
267 				p = (ulong_t *)((char *)block + offset);  in tnfw_b_alloc()
269 				q = (ulong_t *)((char *)block + TNF_BLOCK_SIZE);  in tnfw_b_alloc()
274 				new_block->next_block = block;  in tnfw_b_alloc()
282 		pos->tnfw_w_block = block = new_block;  in tnfw_b_alloc()
288 	destp = (char *)block + offset;  in tnfw_b_alloc()
343 	tnf_block_header_t *block;  in tnfw_b_init_buffer()  local
389 	fh->next_alloc.block[0] = 0;  in tnfw_b_init_buffer()
390 	fh->next_alloc.block[1] = TNFW_B_DATA_BLOCK_BEGIN >> TNF_BLOCK_SHIFT;  in tnfw_b_init_buffer()
399 		block =	(tnf_block_header_t *)(buf + (i << TNF_BLOCK_SHIFT));  in tnfw_b_init_buffer()
400 		block->tag = (tnf_ref32_t)TNF_BLOCK_HEADER_TAG;  in tnfw_b_init_buffer()
401 		block->generation = 0;  in tnfw_b_init_buffer()
402 		block->bytes_valid = sizeof (tnf_block_header_t);  in tnfw_b_init_buffer()
403 		LOCK_INIT_CLEAR(&block->A_lock);  in tnfw_b_init_buffer()
404 		LOCK_INIT_CLEAR(&block->B_lock);  in tnfw_b_init_buffer()