fs/ceph/super.c

254 static int namespace_equals(struct ceph_mount_options *fsopt,
257 	return !(fsopt->mds_namespace &&
258 		 (strlen(fsopt->mds_namespace) != len ||
259 		  strncmp(fsopt->mds_namespace, namespace, len)));
267 	struct ceph_mount_options *fsopt = pctx->opts;
277 	fsopt->new_dev_syntax = false;
287 	struct ceph_mount_options *fsopt = pctx->opts;
310 	if (!namespace_equals(fsopt, fs_name_start, len))
312 	kfree(fsopt->mds_namespace);
313 	fsopt->mds_namespace = kstrndup(fs_name_start, len, GFP_KERNEL);
314 	if (!fsopt->mds_namespace)
316 	dout("file system (mds namespace) '%s'\n", fsopt->mds_namespace);
318 	fsopt->new_dev_syntax = true;
343 	struct ceph_mount_options *fsopt = pctx->opts;
357 		kfree(fsopt->server_path);
358 		fsopt->server_path = kstrdup(dev_name_end, GFP_KERNEL);
359 		if (!fsopt->server_path)
362 		canonicalize_path(fsopt->server_path);
372 	if (fsopt->server_path)
373 		dout("server path '%s'\n", fsopt->server_path);
395 	struct ceph_mount_options *fsopt = pctx->opts;
397 	kfree(fsopt->mon_addr);
398 	fsopt->mon_addr = param->string;
401 	return ceph_parse_mon_ips(fsopt->mon_addr, strlen(fsopt->mon_addr),
409 	struct ceph_mount_options *fsopt = pctx->opts;
425 		kfree(fsopt->snapdir_name);
426 		fsopt->snapdir_name = param->string;
430 		if (!namespace_equals(fsopt, param->string, strlen(param->string)))
432 		kfree(fsopt->mds_namespace);
433 		fsopt->mds_namespace = param->string;
439 			fsopt->flags &= ~CEPH_MOUNT_OPT_CLEANRECOVER;
441 			fsopt->flags |= CEPH_MOUNT_OPT_CLEANRECOVER;
455 		fsopt->wsize = ALIGN(result.uint_32, PAGE_SIZE);
461 		fsopt->rsize = ALIGN(result.uint_32, PAGE_SIZE);
464 		fsopt->rasize = ALIGN(result.uint_32, PAGE_SIZE);
469 		fsopt->caps_wanted_delay_min = result.uint_32;
474 		fsopt->caps_wanted_delay_max = result.uint_32;
479 		fsopt->caps_max = result.int_32;
484 		fsopt->max_readdir = result.uint_32;
489 		fsopt->max_readdir_bytes = result.uint_32;
494 		fsopt->congestion_kb = result.uint_32;
498 			fsopt->flags |= CEPH_MOUNT_OPT_DIRSTAT;
500 			fsopt->flags &= ~CEPH_MOUNT_OPT_DIRSTAT;
504 			fsopt->flags |= CEPH_MOUNT_OPT_RBYTES;
506 			fsopt->flags &= ~CEPH_MOUNT_OPT_RBYTES;
510 			fsopt->flags &= ~CEPH_MOUNT_OPT_NOASYNCREADDIR;
512 			fsopt->flags |= CEPH_MOUNT_OPT_NOASYNCREADDIR;
516 			fsopt->flags |= CEPH_MOUNT_OPT_DCACHE;
518 			fsopt->flags &= ~CEPH_MOUNT_OPT_DCACHE;
522 			fsopt->flags |= CEPH_MOUNT_OPT_INO32;
524 			fsopt->flags &= ~CEPH_MOUNT_OPT_INO32;
529 		kfree(fsopt->fscache_uniq);
530 		fsopt->fscache_uniq = NULL;
532 			fsopt->flags &= ~CEPH_MOUNT_OPT_FSCACHE;
534 			fsopt->flags |= CEPH_MOUNT_OPT_FSCACHE;
535 			fsopt->fscache_uniq = param->string;
544 			fsopt->flags &= ~CEPH_MOUNT_OPT_NOPOOLPERM;
546 			fsopt->flags |= CEPH_MOUNT_OPT_NOPOOLPERM;
550 			fsopt->flags &= ~CEPH_MOUNT_OPT_MOUNTWAIT;
552 			fsopt->flags |= CEPH_MOUNT_OPT_MOUNTWAIT;
556 			fsopt->flags &= ~CEPH_MOUNT_OPT_NOQUOTADF;
558 			fsopt->flags |= CEPH_MOUNT_OPT_NOQUOTADF;
562 			fsopt->flags &= ~CEPH_MOUNT_OPT_NOCOPYFROM;
564 			fsopt->flags |= CEPH_MOUNT_OPT_NOCOPYFROM;
579 			fsopt->flags &= ~CEPH_MOUNT_OPT_ASYNC_DIROPS;
581 			fsopt->flags |= CEPH_MOUNT_OPT_ASYNC_DIROPS;
585 			fsopt->flags |= CEPH_MOUNT_OPT_NOPAGECACHE;
587 			fsopt->flags &= ~CEPH_MOUNT_OPT_NOPAGECACHE;
591 			fsopt->flags &= ~CEPH_MOUNT_OPT_SPARSEREAD;
593 			fsopt->flags |= CEPH_MOUNT_OPT_SPARSEREAD;
597 		fscrypt_free_dummy_policy(&fsopt->dummy_enc_policy);
599 						&fsopt->dummy_enc_policy);
691 	struct ceph_mount_options *fsopt = fsc->mount_options;
707 	if (fsopt->flags & CEPH_MOUNT_OPT_DIRSTAT)
709 	if ((fsopt->flags & CEPH_MOUNT_OPT_RBYTES))
711 	if (fsopt->flags & CEPH_MOUNT_OPT_NOASYNCREADDIR)
713 	if ((fsopt->flags & CEPH_MOUNT_OPT_DCACHE) == 0)
715 	if (fsopt->flags & CEPH_MOUNT_OPT_INO32)
717 	if (fsopt->flags & CEPH_MOUNT_OPT_FSCACHE) {
718 		seq_show_option(m, "fsc", fsopt->fscache_uniq);
720 	if (fsopt->flags & CEPH_MOUNT_OPT_NOPOOLPERM)
722 	if (fsopt->flags & CEPH_MOUNT_OPT_NOQUOTADF)
732 	if ((fsopt->flags & CEPH_MOUNT_OPT_NOCOPYFROM) == 0)
736 	if (fsopt->mds_namespace && !fsopt->new_dev_syntax)
737 		seq_show_option(m, "mds_namespace", fsopt->mds_namespace);
739 	if (fsopt->mon_addr)
740 		seq_printf(m, ",mon_addr=%s", fsopt->mon_addr);
742 	if (fsopt->flags & CEPH_MOUNT_OPT_CLEANRECOVER)
745 	if (!(fsopt->flags & CEPH_MOUNT_OPT_ASYNC_DIROPS))
747 	if (fsopt->flags & CEPH_MOUNT_OPT_NOPAGECACHE)
749 	if (fsopt->flags & CEPH_MOUNT_OPT_SPARSEREAD)
754 	if (fsopt->wsize != CEPH_MAX_WRITE_SIZE)
755 		seq_printf(m, ",wsize=%u", fsopt->wsize);
756 	if (fsopt->rsize != CEPH_MAX_READ_SIZE)
757 		seq_printf(m, ",rsize=%u", fsopt->rsize);
758 	if (fsopt->rasize != CEPH_RASIZE_DEFAULT)
759 		seq_printf(m, ",rasize=%u", fsopt->rasize);
760 	if (fsopt->congestion_kb != default_congestion_kb())
761 		seq_printf(m, ",write_congestion_kb=%u", fsopt->congestion_kb);
762 	if (fsopt->caps_max)
763 		seq_printf(m, ",caps_max=%d", fsopt->caps_max);
764 	if (fsopt->caps_wanted_delay_min != CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT)
766 			 fsopt->caps_wanted_delay_min);
767 	if (fsopt->caps_wanted_delay_max != CEPH_CAPS_WANTED_DELAY_MAX_DEFAULT)
769 			   fsopt->caps_wanted_delay_max);
770 	if (fsopt->max_readdir != CEPH_MAX_READDIR_DEFAULT)
771 		seq_printf(m, ",readdir_max_entries=%u", fsopt->max_readdir);
772 	if (fsopt->max_readdir_bytes != CEPH_MAX_READDIR_BYTES_DEFAULT)
773 		seq_printf(m, ",readdir_max_bytes=%u", fsopt->max_readdir_bytes);
774 	if (strcmp(fsopt->snapdir_name, CEPH_SNAPDIRNAME_DEFAULT))
775 		seq_show_option(m, "snapdirname", fsopt->snapdir_name);
804  * Success or not, this function consumes @fsopt and @opt.
806 static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt,
828 	if (!fsopt->mds_namespace) {
836 	fsc->mount_options = fsopt;
875 	destroy_mount_options(fsopt);
1096 					    struct ceph_mount_options *fsopt)
1100 	if (!fscrypt_is_dummy_policy_set(&fsopt->dummy_enc_policy))
1106 		if (fscrypt_dummy_policies_equal(&fsopt->dummy_enc_policy,
1113 	/* Also make sure fsopt doesn't contain a conflicting value. */
1115 		if (fscrypt_dummy_policies_equal(&fsopt->dummy_enc_policy,
1122 	fsc->fsc_dummy_enc_policy = fsopt->dummy_enc_policy;
1123 	memset(&fsopt->dummy_enc_policy, 0, sizeof(fsopt->dummy_enc_policy));
1131 					    struct ceph_mount_options *fsopt)
1233 	struct ceph_mount_options *fsopt = new->mount_options;
1240 	if (compare_mount_options(fsopt, opt, fsc)) {
1293 	struct ceph_mount_options *fsopt = pctx->opts;
1305 	if (fsopt->new_dev_syntax && !fsopt->mon_addr)
1386 	struct ceph_mount_options *fsopt = pctx->opts;
1390 	err = ceph_apply_test_dummy_encryption(sb, fc, fsopt);
1394 	if (fsopt->flags & CEPH_MOUNT_OPT_ASYNC_DIROPS)
1399 	if (fsopt->flags & CEPH_MOUNT_OPT_SPARSEREAD)
1404 	if (strcmp_null(fsc->mount_options->mon_addr, fsopt->mon_addr)) {
1406 		fsc->mount_options->mon_addr = fsopt->mon_addr;
1407 		fsopt->mon_addr = NULL;
1429 	struct ceph_mount_options *fsopt;
1443 	fsopt = pctx->opts;
1444 	fsopt->flags = CEPH_MOUNT_OPT_DEFAULT;
1446 	fsopt->wsize = CEPH_MAX_WRITE_SIZE;
1447 	fsopt->rsize = CEPH_MAX_READ_SIZE;
1448 	fsopt->rasize = CEPH_RASIZE_DEFAULT;
1449 	fsopt->snapdir_name = kstrdup(CEPH_SNAPDIRNAME_DEFAULT, GFP_KERNEL);
1450 	if (!fsopt->snapdir_name)
1453 	fsopt->caps_wanted_delay_min = CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT;
1454 	fsopt->caps_wanted_delay_max = CEPH_CAPS_WANTED_DELAY_MAX_DEFAULT;
1455 	fsopt->max_readdir = CEPH_MAX_READDIR_DEFAULT;
1456 	fsopt->max_readdir_bytes = CEPH_MAX_READDIR_BYTES_DEFAULT;
1457 	fsopt->congestion_kb = default_congestion_kb();