97 	 * As the GPT backup partition is located at the end of the disk,  in ptblread()
234 	int rc, slice, partition;  in disk_open()  local
262 	partition = dev->d_partition;  in disk_open()
264 	DPRINTF("%s unit %d, slice %d, partition %d => %p", disk_fmtdev(dev),  in disk_open()
271 		DPRINTF("Can't read partition table");  in disk_open()
284 	    partition >= 0) {  in disk_open()
286 		rc = ptable_getpart(od->table, &part, partition);  in disk_open()
295 		/* Try to get information about partition */  in disk_open()
300 		if (rc != 0) /* Partition doesn't exist */  in disk_open()
306 			partition = D_PARTISGPT;  in disk_open()
308 		} else if (partition == D_PARTISGPT) {  in disk_open()
310 			 * When we try to open GPT partition, but partition  in disk_open()
311 			 * table isn't GPT, reset partition value to  in disk_open()
314 			partition = D_PARTWILD;  in disk_open()
318 		 * If partition is D_PARTNONE, then disk_open() was called  in disk_open()
321 		if (partition == D_PARTNONE)  in disk_open()
325 		 * If partition is D_PARTWILD and we are looking at a  in disk_open()
329 		if (partition == D_PARTWILD) {  in disk_open()
347 		 * If slice contains BSD/VTOC label and partition < 0, then  in disk_open()
348 		 * assume the 'a' partition. Otherwise just return the  in disk_open()
351 		if (partition < 0) {  in disk_open()
355 			partition = 0;  in disk_open()
357 		rc = ptable_getpart(table, &part, partition);  in disk_open()
373 		/* Save the slice and partition number to the dev */  in disk_open()
375 		dev->d_partition = partition;  in disk_open()
421 	int unit, slice, partition;  in disk_parsedev()  local
429 	 * slice or partition info should be considered a request to search for  in disk_parsedev()
430 	 * an appropriate partition.  Otherwise we want to open the raw device  in disk_parsedev()
435 		partition = D_PARTWILD;  in disk_parsedev()
438 		partition = D_PARTNONE;  in disk_parsedev()
454 			partition = D_PARTISGPT;  in disk_parsedev()
466 			partition = *cp - 'a';  in disk_parsedev()
467 			if (partition < 0)  in disk_parsedev()
478 	dev->d_partition = partition;  in disk_parsedev()