zfs.c (d9fe71828797508d1d28655e40780a5ae9078e66) zfs.c (4e15366c6a6907bcd0e2c28885ba5878ed4280d2)
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2022 The FreeBSD Foundation
5 *
6 * This software was developed by Mark Johnston under sponsorship from
7 * the FreeBSD Foundation.
8 *

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86 { '\0', "mssize", &zfs->mssize, OPT_INT64,
87 MINMSSIZE, MAXMSSIZE, "Metaslab size" },
88 { '\0', "poolname", &zfs->poolname, OPT_STRPTR,
89 0, 0, "ZFS pool name" },
90 { '\0', "rootpath", &zfs->rootpath, OPT_STRPTR,
91 0, 0, "Prefix for all dataset mount points" },
92 { '\0', "ashift", &zfs->ashift, OPT_INT32,
93 MINBLOCKSHIFT, MAXBLOCKSHIFT, "ZFS pool ashift" },
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2022 The FreeBSD Foundation
5 *
6 * This software was developed by Mark Johnston under sponsorship from
7 * the FreeBSD Foundation.
8 *

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86 { '\0', "mssize", &zfs->mssize, OPT_INT64,
87 MINMSSIZE, MAXMSSIZE, "Metaslab size" },
88 { '\0', "poolname", &zfs->poolname, OPT_STRPTR,
89 0, 0, "ZFS pool name" },
90 { '\0', "rootpath", &zfs->rootpath, OPT_STRPTR,
91 0, 0, "Prefix for all dataset mount points" },
92 { '\0', "ashift", &zfs->ashift, OPT_INT32,
93 MINBLOCKSHIFT, MAXBLOCKSHIFT, "ZFS pool ashift" },
94 { '\0', "verify-txgs", &zfs->verify_txgs, OPT_BOOL,
95 0, 0, "Make OpenZFS verify data upon import" },
94 { '\0', "nowarn", &zfs->nowarn, OPT_BOOL,
95 0, 0, "Provided for backwards compatibility, ignored" },
96 { .name = NULL }
97 };
98
99 STAILQ_INIT(&zfs->datasetdescs);
100
101 fsopts->fs_specific = zfs;

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589 * Fill out the uberblock. Just make each one the same. The embedded
590 * checksum is calculated in vdev_label_write().
591 */
592 for (size_t uoff = 0; uoff < sizeof(label->vl_uberblock);
593 uoff += (1 << zfs->ashift)) {
594 ub = (uberblock_t *)(&label->vl_uberblock[0] + uoff);
595 ub->ub_magic = UBERBLOCK_MAGIC;
596 ub->ub_version = SPA_VERSION;
96 { '\0', "nowarn", &zfs->nowarn, OPT_BOOL,
97 0, 0, "Provided for backwards compatibility, ignored" },
98 { .name = NULL }
99 };
100
101 STAILQ_INIT(&zfs->datasetdescs);
102
103 fsopts->fs_specific = zfs;

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591 * Fill out the uberblock. Just make each one the same. The embedded
592 * checksum is calculated in vdev_label_write().
593 */
594 for (size_t uoff = 0; uoff < sizeof(label->vl_uberblock);
595 uoff += (1 << zfs->ashift)) {
596 ub = (uberblock_t *)(&label->vl_uberblock[0] + uoff);
597 ub->ub_magic = UBERBLOCK_MAGIC;
598 ub->ub_version = SPA_VERSION;
599
600 /*
601 * Upon import, OpenZFS will perform metadata verification of
602 * the last TXG by default. If all data is written in the same
603 * TXG, it'll all get verified, which can be painfully slow in
604 * some cases, e.g., initial boot in a cloud environment with
605 * slow storage. So, fabricate additional TXGs to avoid this
606 * overhead, unless the user requests otherwise.
607 */
597 ub->ub_txg = TXG;
608 ub->ub_txg = TXG;
609 if (!zfs->verify_txgs)
610 ub->ub_txg += TXG_SIZE;
598 ub->ub_guid_sum = zfs->poolguid + zfs->vdevguid;
599 ub->ub_timestamp = 0;
600
601 ub->ub_software_version = SPA_VERSION;
602 ub->ub_mmp_magic = MMP_MAGIC;
603 ub->ub_mmp_delay = 0;
604 ub->ub_mmp_config = 0;
605 ub->ub_checkpoint_txg = 0;

--- 186 unchanged lines hidden --- 		611 ub->ub_guid_sum = zfs->poolguid + zfs->vdevguid;
612 ub->ub_timestamp = 0;
613
614 ub->ub_software_version = SPA_VERSION;
615 ub->ub_mmp_magic = MMP_MAGIC;
616 ub->ub_mmp_delay = 0;
617 ub->ub_mmp_config = 0;
618 ub->ub_checkpoint_txg = 0;

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