class/virstor/geom_virstor.c

154 my_g_metadata_store(const char *name, u_char *md, size_t size)
185 	bcopy(md, sector, size);
207 	struct g_virstor_metadata md;
236 	bzero(&md, sizeof(md));
237 	strlcpy(md.md_magic, G_VIRSTOR_MAGIC, sizeof(md.md_magic));
238 	md.md_version = G_VIRSTOR_VERSION;
244 	strlcpy(md.md_name, name, sizeof(md.md_name));
246 	md.md_virsize = (off_t)gctl_get_intmax(req, "vir_size");
247 	md.md_chunk_size = gctl_get_intmax(req, "chunk_size");
248 	md.md_count = nargs - 1;
250 	if (md.md_virsize == 0 || md.md_chunk_size == 0) {
255 	if (md.md_chunk_size % MAXPHYS != 0) {
258 		size_t new_size = rounddown(md.md_chunk_size, MAXPHYS);
259 		if (new_size < md.md_chunk_size)
264 		md.md_chunk_size = new_size;
267 	if (md.md_virsize % md.md_chunk_size != 0) {
268 		off_t chunk_count = md.md_virsize / md.md_chunk_size;
269 		md.md_virsize = chunk_count * md.md_chunk_size;
273 		    (size_t)(md.md_virsize/(1024 * 1024)));
299 	if (md.md_chunk_size % secsize != 0) {
307 	total_chunks = md.md_virsize / md.md_chunk_size;
309 	assert(md.md_virsize % md.md_chunk_size == 0);
315 		md.md_virsize = (off_t)total_chunks * (off_t)md.md_chunk_size;
320 		    (uintmax_t)(md.md_virsize / (1024 * 1024)), add_chunks);
326 		    total_chunks, (size_t)(md.md_chunk_size / (1024 * 1024)),
327 		    md.md_virsize/(1024 * 1024));
329 	if ((off_t)md.md_virsize < msize)
331 		    "available storage (%ju < %ju)\n", md.md_virsize, msize);
351 		if (msize < (off_t) MAX(md.md_chunk_size*4, map_size))
370 	map_chunks = map_size/md.md_chunk_size;
371 	if (map_size % md.md_chunk_size != 0)
415 	md.md_id = arc4random();
429 		md.no = i - 1;
431 		md.provsize = msize;
433 		md.chunk_count = md.provsize / md.md_chunk_size;
435 			printf("(%u chunks) ", md.chunk_count);
437 		if ((off_t)(md.chunk_count * md.md_chunk_size) > (off_t)(msize-ssize))
438 		    md.chunk_count--;
439 		md.chunk_next = 0;
441 			md.chunk_reserved = 0;
442 			md.flags = 0;
444 			md.chunk_reserved = map_chunks * 2;
445 			md.flags = VIRSTOR_PROVIDER_ALLOCATED |
447 			md.chunk_next = md.chunk_reserved;
449 				printf("(%u reserved) ", md.chunk_reserved);
453 			bzero(md.provider, sizeof(md.provider));
457 				strlcpy(md.provider, name + sizeof(_PATH_DEV) - 1,
458 				    sizeof(md.provider));
460 				strlcpy(md.provider, name, sizeof(md.provider));
466 		virstor_metadata_encode(&md, sect);
530 virstor_metadata_dump(const struct g_virstor_metadata *md)
532 	printf("          Magic string: %s\n", md->md_magic);
533 	printf("      Metadata version: %u\n", (u_int) md->md_version);
534 	printf("           Device name: %s\n", md->md_name);
535 	printf("             Device ID: %u\n", (u_int) md->md_id);
536 	printf("        Provider index: %u\n", (u_int) md->no);
537 	printf("      Active providers: %u\n", (u_int) md->md_count);
539 	    md->provider[0] != '\0' ? md->provider : "(not hardcoded)");
541 	    (unsigned int)(md->md_virsize/(1024 * 1024)));
542 	printf("            Chunk size: %u kB\n", md->md_chunk_size / 1024);
543 	printf("    Chunks on provider: %u\n", md->chunk_count);
544 	printf("           Chunks free: %u\n", md->chunk_count - md->chunk_next);
545 	printf("       Reserved chunks: %u\n", md->chunk_reserved);
552 	struct g_virstor_metadata md;
558 	assert(sizeof(tmpmd) >= sizeof(md));
578 		virstor_metadata_decode((u_char *) & tmpmd, &md);
580 		virstor_metadata_dump(&md);