8fc257994d
in Solaris 10 updates 141445-09 and 142901-14. Detailed information: (OpenSolaris revisions and Bug IDs, Solaris 10 patch numbers) 7844:effed23820ae 6755435 zfs_open() and zfs_close() needs to use ZFS_ENTER/ZFS_VERIFY_ZP (141445-01) 7897:e520d8258820 6748436 inconsistent zpool.cache in boot_archive could panic a zfs root filesystem upon boot-up (141445-01) 7965:b795da521357 6740164 zpool attach can create an illegal root pool (141909-02) 8084:b811cc60d650 6769612 zpool_import() will continue to write to cachefile even if altroot is set (N/A) 8121:7fd09d4ebd9c 6757430 want an option for zdb to disable space map loading and leak tracking (141445-01) 8129:e4f45a0bfbb0 6542860 ASSERT: reason != VDEV_LABEL_REMOVE||vdev_inuse(vd, crtxg, reason, 0) (141445-01) 8188:fd00c0a81e80 6761100 want zdb option to select older uberblocks (141445-01) 8190:6eeea43ced42 6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw (141445-01) 8225:59a9961c2aeb 6737463 panic while trying to write out config file if root pool import fails (141445-01) 8227:f7d7be9b1f56 6765294 Refactor replay (141445-01) 8228:51e9ca9ee3a5 6572357 libzfs should do more to avoid mnttab lookups (141909-01) 6572376 zfs_iter_filesystems and zfs_iter_snapshots get objset stats twice (141909-01) 8241:5a60f16123ba 6328632 zpool offline is a bit too conservative (141445-01) 6739487 ASSERT: txg <= spa_final_txg due to scrub/export race (141445-01) 6767129 ASSERT: cvd->vdev_isspare, in spa_vdev_detach() (141445-01) 6747698 checksum failures after offline -t / export / import / scrub (141445-01) 6745863 ZFS writes to disk after it has been offlined (141445-01) 6722540 50% slowdown on scrub/resilver with certain vdev configurations (141445-01) 6759999 resilver logic rewrites ditto blocks on both source and destination (141445-01) 6758107 I/O should never suspend during spa_load() (141445-01) 6776548 codereview(1) runs off the page when faced with multi-line comments (N/A) 6761406 AMD errata 91 workaround doesn't work on 64-bit systems (141445-01) 8242:e46e4b2f0a03 6770866 GRUB/ZFS should require physical path or devid, but not both (141445-01) 8269:03a7e9050cfd 6674216 "zfs share" doesn't work, but "zfs set sharenfs=on" does (141445-01) 6621164 $SRC/cmd/zfs/zfs_main.c seems to have a syntax error in the translation note (141445-01) 6635482 i18n problems in libzfs_dataset.c and zfs_main.c (141445-01) 6595194 "zfs get" VALUE column is as wide as NAME (141445-01) 6722991 vdev_disk.c: error checking for ddi_pathname_to_dev_t() must test for NODEV (141445-01) 6396518 ASSERT strings shouldn't be pre-processed (141445-01) 8274:846b39508aff 6713916 scrub/resilver needlessly decompress data (141445-01) 8343:655db2375fed 6739553 libzfs_status msgid table is out of sync (141445-01) 6784104 libzfs unfairly rejects numerical values greater than 2^63 (141445-01) 6784108 zfs_realloc() should not free original memory on failure (141445-01) 8525:e0e0e525d0f8 6788830 set large value to reservation cause core dump (141445-01) 6791064 want sysevents for ZFS scrub (141445-01) 6791066 need to be able to set cachefile on faulted pools (141445-01) 6791071 zpool_do_import() should not enable datasets on faulted pools (141445-01) 6792134 getting multiple properties on a faulted pool leads to confusion (141445-01) 8547:bcc7b46e5ff7 6792884 Vista clients cannot access .zfs (141445-01) 8632:36ef517870a3 6798384 It can take a village to raise a zio (141445-01) 8636:7e4ce9158df3 6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage() (141909-01) 6504953 zfs_getpage() misunderstands VOP_GETPAGE() interface (141909-01) 6702206 ZFS read/writer lock contention throttles sendfile() benchmark (141445-01) 6780491 Zone on a ZFS filesystem has poor fork/exec performance (141445-01) 6747596 assertion failed: DVA_EQUAL(BP_IDENTITY(&zio->io_bp_orig), BP_IDENTITY(zio->io_bp))); (141445-01) 8692:692d4668b40d 6801507 ZFS read aggregation should not mind the gap (141445-01) 8697:e62d2612c14d 6633095 creating a filesystem with many properties set is slow (141445-01) 8768:dfecfdbb27ed 6775697 oracle crashes when overwriting after hitting quota on zfs (141909-01) 8811:f8deccf701cf 6790687 libzfs mnttab caching ignores external changes (141445-01) 6791101 memory leak from libzfs_mnttab_init (141445-01) 8845:91af0d9c0790 6800942 smb_session_create() incorrectly stores IP addresses (N/A) 6582163 Access Control List (ACL) for shares (141445-01) 6804954 smb_search - shortname field should be space padded following the NULL terminator (N/A) 6800184 Panic at smb_oplock_conflict+0x35() (N/A) 8876:59d2e67b4b65 6803822 Reboot after replacement of system disk in a ZFS mirror drops to grub> prompt (141445-01) 8924:5af812f84759 6789318 coredump when issue zdb -uuuu poolname/ (141445-01) 6790345 zdb -dddd -e poolname coredump (141445-01) 6797109 zdb: 'zdb -dddddd pool_name/fs_name inode' coredump if the file with inode was deleted (141445-01)6797118
zdb: 'zdb -dddddd poolname inum' coredump if I miss the fs name (141445-01) 6803343 shareiscsi=on failed, iscsitgtd failed request to share (141445-01) 9030:243fd360d81f 6815893 hang mounting a dataset after booting into a new boot environment (141445-01) 9056:826e1858a846 6809691 'zpool create -f' no longer overwrites ufs infomation (141445-01) 9179:d8fbd96b79b3 6790064 zfs needs to determine uid and gid earlier in create process (141445-01) 9214:8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy (141909-01) 6810367 assertion failed: dvp->v_flag & VROOT, file: ../../common/fs/gfs.c, line: 426 (141909-01) 9229:e3f8b41e5db4 6807765 ztest_dsl_dataset_promote_busy needs to clean up after ENOSPC (141445-01) 9230:e4561e3eb1ef 6821169 offlining a device results in checksum errors (141445-01) 6821170 ZFS should not increment error stats for unavailable devices (141445-01) 6824006 need to increase issue and interrupt taskqs threads in zfs (141445-01) 9234:bffdc4fc05c4 6792139 recovering from a suspended pool needs some work (141445-01) 6794830 reboot command hangs on a failed zfs pool (141445-01) 9246:67c03c93c071 6824062 System panicked in zfs_mount due to NULL pointer dereference when running btts and svvs tests (141909-01) 9276:a8a7fc849933 6816124 System crash running zpool destroy on broken zpool (141445-03) 9355:09928982c591 6818183 zfs snapshot -r is slow due to set_snap_props() doing txg_wait_synced() for each new snapshot (141445-03) 9391:413d0661ef33 6710376 log device can show incorrect status when other parts of pool are degraded (141445-03) 9396:f41cf682d0d3 (part already merged) 6501037 want user/group quotas on ZFS (141445-03) 6827260 assertion failed in arc_read(): hdr == pbuf->b_hdr (141445-03) 6815592 panic: No such hold X on refcount Y from zfs_znode_move (141445-03) 6759986 zfs list shows temporary %clone when doing online zfs recv (141445-03) 9404:319573cd93f8 6774713 zfs ignores canmount=noauto when sharenfs property != off (141445-03) 9412:4aefd8704ce06717022
ZFS DMU needs zero-copy support (141445-03) 9425:e7ffacaec3a8 6799895 spa_add_spares() needs to be protected by config lock (141445-03) 6826466 want to post sysevents on hot spare activation (141445-03) 6826468 spa 'allowfaulted' needs some work (141445-03) 6826469 kernel support for storing vdev FRU information (141445-03) 6826470 skip posting checksum errors from DTL regions of leaf vdevs (141445-03) 6826471 I/O errors after device remove probe can confuse FMA (141445-03) 6826472 spares should enjoy some of the benefits of cache devices (141445-03) 9443:2a96d8478e95 6833711 gang leaders shouldn't have to be logical (141445-03) 9463:d0bd231c7518 6764124 want zdb to be able to checksum metadata blocks only (141445-03) 9465:8372081b8019 6830237 zfs panic in zfs_groupmember() (141445-03) 9466:1fdfd1fed9c4 6833162 phantom log device in zpool status (141445-03) 9469:4f68f041ddcd6824968
add ZFS userquota support to rquotad (141445-03) 9470:6d827468d7b5 6834217 godfather I/O should reexecute (141445-03) 9480:fcff33da767f 6596237 Stop looking and start ganging (141909-02) 9493:9933d599bc93 6623978 lwb->lwb_buf != NULL, file ../../../uts/common/fs/zfs/zil.c, line 787, function zil_lwb_commit (141445-06) 9512:64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads (N/A) 9515:d3b739d9d043 6586537 async zio taskqs can block out userland commands (142901-09) 9554:787363635b6a 6836768 zfs_userspace() callback has no way to indicate failure (N/A) 9574:1eb6a6ab2c57 6838062 zfs panics when an error is encountered in space_map_load() (141909-02) 9583:b0696cd037cc 6794136 Panic BAD TRAP: type=e when importing degraded zraid pool. (141909-03) 9630:e25a03f552e0 6776104 "zfs import" deadlock between spa_unload() and spa_async_thread() (141445-06) 9653:a70048a304d1 6664765 Unable to remove files when using fat-zap and quota exceeded on ZFS filesystem (141445-06) 9688:127be1845343 6841321 zfs userspace / zfs get userused@ doesn't work on mounted snapshot (N/A) 6843069 zfs get userused@S-1-... doesn't work (N/A) 9873:8ddc892eca6e 6847229 assertion failed: refcount_count(&tx->tx_space_written) + delta <= tx->tx_space_towrite in dmu_tx.c (141445-06) 9904:d260bd3fd47c 6838344 kernel heap corruption detected on zil while stress testing (141445-06) 9951:a4895b3dd543 6844900 zfs_ioc_userspace_upgrade leaks (N/A) 10040:38b25aeeaf7a 6857012 zfs panics on zpool import (141445-06) 10000:241a51d8720c 6848242 zdb -e no longer works as expected (N/A) 10100:4a6965f6bef8 6856634 snv_117 not booting: zfs_parse_bootfs: error2 (141445-07) 10160:a45b03783d44 6861983 zfs should use new name <-> SID interfaces (N/A) 6862984 userquota commands can hang (141445-06) 10299:80845694147f 6696858 zfs receive of incremental replication stream can dereference NULL pointer and crash (N/A) 10302:a9e3d1987706 6696858 zfs receive of incremental replication stream can dereference NULL pointer and crash (fix lint) (N/A) 10575:2a8816c5173b (partial merge) 6882227 spa_async_remove() shouldn't do a full clear (142901-14) 10800:469478b180d9 6880764 fsync on zfs is broken if writes are greater than 32kb on a hard crash and no log attached (142901-09) 6793430 zdb -ivvvv assertion failure: bp->blk_cksum.zc_word[2] == dmu_objset_id(zilog->zl_os) (N/A) 10801:e0bf032e8673 (partial merge) 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT (142901-09) 10810:b6b161a6ae4a 6892298 buf->b_hdr->b_state != arc_anon, file: ../../common/fs/zfs/arc.c, line: 2849 (142901-09) 10890:499786962772 6807339 spurious checksum errors when replacing a vdev (142901-13) 11249:6c30f7dfc97b 6906110 bad trap panic in zil_replay_log_record (142901-13) 6906946 zfs replay isn't handling uid/gid correctly (142901-13) 11454:6e69bacc1a5a 6898245 suspended zpool should not cause rest of the zfs/zpool commands to hang (142901-10) 11546:42ea6be8961b (partial merge) 6833999 3-way deadlock in dsl_dataset_hold_ref() and dsl_sync_task_group_sync() (142901-09) Discussed with: pjd Approved by: delphij (mentor) Obtained from: OpenSolaris (multiple Bug IDs) MFC after: 2 months
4493 lines
116 KiB
C
4493 lines
116 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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/*
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* This file contains all the routines used when modifying on-disk SPA state.
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* This includes opening, importing, destroying, exporting a pool, and syncing a
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* pool.
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*/
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#include <sys/zfs_context.h>
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#include <sys/fm/fs/zfs.h>
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#include <sys/spa_impl.h>
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#include <sys/zio.h>
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#include <sys/zio_checksum.h>
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#include <sys/zio_compress.h>
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#include <sys/dmu.h>
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#include <sys/dmu_tx.h>
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#include <sys/zap.h>
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#include <sys/zil.h>
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#include <sys/vdev_impl.h>
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#include <sys/metaslab.h>
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#include <sys/uberblock_impl.h>
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#include <sys/txg.h>
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#include <sys/avl.h>
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#include <sys/dmu_traverse.h>
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#include <sys/dmu_objset.h>
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#include <sys/unique.h>
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#include <sys/dsl_pool.h>
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#include <sys/dsl_dataset.h>
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#include <sys/dsl_dir.h>
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#include <sys/dsl_prop.h>
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#include <sys/dsl_synctask.h>
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#include <sys/fs/zfs.h>
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#include <sys/arc.h>
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#include <sys/callb.h>
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#include <sys/sunddi.h>
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#include <sys/spa_boot.h>
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#include "zfs_prop.h"
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#include "zfs_comutil.h"
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/* Check hostid on import? */
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static int check_hostid = 1;
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SYSCTL_DECL(_vfs_zfs);
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TUNABLE_INT("vfs.zfs.check_hostid", &check_hostid);
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SYSCTL_INT(_vfs_zfs, OID_AUTO, check_hostid, CTLFLAG_RW, &check_hostid, 0,
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"Check hostid on import?");
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enum zti_modes {
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zti_mode_fixed, /* value is # of threads (min 1) */
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zti_mode_online_percent, /* value is % of online CPUs */
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zti_mode_tune, /* fill from zio_taskq_tune_* */
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zti_nmodes
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};
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#define ZTI_THREAD_FIX(n) { zti_mode_fixed, (n) }
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#define ZTI_THREAD_PCT(n) { zti_mode_online_percent, (n) }
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#define ZTI_THREAD_TUNE { zti_mode_tune, 0 }
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#define ZTI_THREAD_ONE ZTI_THREAD_FIX(1)
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typedef struct zio_taskq_info {
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const char *zti_name;
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struct {
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enum zti_modes zti_mode;
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uint_t zti_value;
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} zti_nthreads[ZIO_TASKQ_TYPES];
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} zio_taskq_info_t;
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static const char *const zio_taskq_types[ZIO_TASKQ_TYPES] = {
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"issue", "intr"
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};
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const zio_taskq_info_t zio_taskqs[ZIO_TYPES] = {
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/* ISSUE INTR */
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{ "spa_zio_null", { ZTI_THREAD_ONE, ZTI_THREAD_ONE } },
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{ "spa_zio_read", { ZTI_THREAD_FIX(8), ZTI_THREAD_TUNE } },
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{ "spa_zio_write", { ZTI_THREAD_TUNE, ZTI_THREAD_FIX(8) } },
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{ "spa_zio_free", { ZTI_THREAD_ONE, ZTI_THREAD_ONE } },
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{ "spa_zio_claim", { ZTI_THREAD_ONE, ZTI_THREAD_ONE } },
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{ "spa_zio_ioctl", { ZTI_THREAD_ONE, ZTI_THREAD_ONE } },
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};
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enum zti_modes zio_taskq_tune_mode = zti_mode_online_percent;
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uint_t zio_taskq_tune_value = 80; /* #threads = 80% of # online CPUs */
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static void spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx);
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static boolean_t spa_has_active_shared_spare(spa_t *spa);
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/*
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* ==========================================================================
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* SPA properties routines
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* ==========================================================================
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*/
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/*
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* Add a (source=src, propname=propval) list to an nvlist.
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*/
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static void
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spa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, char *strval,
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uint64_t intval, zprop_source_t src)
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{
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const char *propname = zpool_prop_to_name(prop);
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nvlist_t *propval;
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VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0);
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VERIFY(nvlist_add_uint64(propval, ZPROP_SOURCE, src) == 0);
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if (strval != NULL)
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VERIFY(nvlist_add_string(propval, ZPROP_VALUE, strval) == 0);
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else
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VERIFY(nvlist_add_uint64(propval, ZPROP_VALUE, intval) == 0);
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VERIFY(nvlist_add_nvlist(nvl, propname, propval) == 0);
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nvlist_free(propval);
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}
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/*
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* Get property values from the spa configuration.
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*/
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static void
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spa_prop_get_config(spa_t *spa, nvlist_t **nvp)
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{
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uint64_t size;
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uint64_t used;
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uint64_t cap, version;
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zprop_source_t src = ZPROP_SRC_NONE;
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spa_config_dirent_t *dp;
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ASSERT(MUTEX_HELD(&spa->spa_props_lock));
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if (spa->spa_root_vdev != NULL) {
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size = spa_get_space(spa);
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used = spa_get_alloc(spa);
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spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa_name(spa), 0, src);
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spa_prop_add_list(*nvp, ZPOOL_PROP_SIZE, NULL, size, src);
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spa_prop_add_list(*nvp, ZPOOL_PROP_USED, NULL, used, src);
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spa_prop_add_list(*nvp, ZPOOL_PROP_AVAILABLE, NULL,
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size - used, src);
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cap = (size == 0) ? 0 : (used * 100 / size);
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spa_prop_add_list(*nvp, ZPOOL_PROP_CAPACITY, NULL, cap, src);
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spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL,
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spa->spa_root_vdev->vdev_state, src);
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version = spa_version(spa);
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if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION))
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src = ZPROP_SRC_DEFAULT;
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else
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src = ZPROP_SRC_LOCAL;
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spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, version, src);
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}
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spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL, spa_guid(spa), src);
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if (spa->spa_root != NULL)
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spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, spa->spa_root,
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0, ZPROP_SRC_LOCAL);
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if ((dp = list_head(&spa->spa_config_list)) != NULL) {
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if (dp->scd_path == NULL) {
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spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE,
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"none", 0, ZPROP_SRC_LOCAL);
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} else if (strcmp(dp->scd_path, spa_config_path) != 0) {
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spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE,
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dp->scd_path, 0, ZPROP_SRC_LOCAL);
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}
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}
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}
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/*
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* Get zpool property values.
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*/
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int
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spa_prop_get(spa_t *spa, nvlist_t **nvp)
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{
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zap_cursor_t zc;
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zap_attribute_t za;
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objset_t *mos = spa->spa_meta_objset;
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int err;
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VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0);
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mutex_enter(&spa->spa_props_lock);
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/*
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* Get properties from the spa config.
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*/
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spa_prop_get_config(spa, nvp);
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/* If no pool property object, no more prop to get. */
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if (spa->spa_pool_props_object == 0) {
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mutex_exit(&spa->spa_props_lock);
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return (0);
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}
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/*
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* Get properties from the MOS pool property object.
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*/
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for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object);
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(err = zap_cursor_retrieve(&zc, &za)) == 0;
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zap_cursor_advance(&zc)) {
|
|
uint64_t intval = 0;
|
|
char *strval = NULL;
|
|
zprop_source_t src = ZPROP_SRC_DEFAULT;
|
|
zpool_prop_t prop;
|
|
|
|
if ((prop = zpool_name_to_prop(za.za_name)) == ZPROP_INVAL)
|
|
continue;
|
|
|
|
switch (za.za_integer_length) {
|
|
case 8:
|
|
/* integer property */
|
|
if (za.za_first_integer !=
|
|
zpool_prop_default_numeric(prop))
|
|
src = ZPROP_SRC_LOCAL;
|
|
|
|
if (prop == ZPOOL_PROP_BOOTFS) {
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *ds = NULL;
|
|
|
|
dp = spa_get_dsl(spa);
|
|
rw_enter(&dp->dp_config_rwlock, RW_READER);
|
|
if (err = dsl_dataset_hold_obj(dp,
|
|
za.za_first_integer, FTAG, &ds)) {
|
|
rw_exit(&dp->dp_config_rwlock);
|
|
break;
|
|
}
|
|
|
|
strval = kmem_alloc(
|
|
MAXNAMELEN + strlen(MOS_DIR_NAME) + 1,
|
|
KM_SLEEP);
|
|
dsl_dataset_name(ds, strval);
|
|
dsl_dataset_rele(ds, FTAG);
|
|
rw_exit(&dp->dp_config_rwlock);
|
|
} else {
|
|
strval = NULL;
|
|
intval = za.za_first_integer;
|
|
}
|
|
|
|
spa_prop_add_list(*nvp, prop, strval, intval, src);
|
|
|
|
if (strval != NULL)
|
|
kmem_free(strval,
|
|
MAXNAMELEN + strlen(MOS_DIR_NAME) + 1);
|
|
|
|
break;
|
|
|
|
case 1:
|
|
/* string property */
|
|
strval = kmem_alloc(za.za_num_integers, KM_SLEEP);
|
|
err = zap_lookup(mos, spa->spa_pool_props_object,
|
|
za.za_name, 1, za.za_num_integers, strval);
|
|
if (err) {
|
|
kmem_free(strval, za.za_num_integers);
|
|
break;
|
|
}
|
|
spa_prop_add_list(*nvp, prop, strval, 0, src);
|
|
kmem_free(strval, za.za_num_integers);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
zap_cursor_fini(&zc);
|
|
mutex_exit(&spa->spa_props_lock);
|
|
out:
|
|
if (err && err != ENOENT) {
|
|
nvlist_free(*nvp);
|
|
*nvp = NULL;
|
|
return (err);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Validate the given pool properties nvlist and modify the list
|
|
* for the property values to be set.
|
|
*/
|
|
static int
|
|
spa_prop_validate(spa_t *spa, nvlist_t *props)
|
|
{
|
|
nvpair_t *elem;
|
|
int error = 0, reset_bootfs = 0;
|
|
uint64_t objnum;
|
|
|
|
elem = NULL;
|
|
while ((elem = nvlist_next_nvpair(props, elem)) != NULL) {
|
|
zpool_prop_t prop;
|
|
char *propname, *strval;
|
|
uint64_t intval;
|
|
objset_t *os;
|
|
char *slash;
|
|
|
|
propname = nvpair_name(elem);
|
|
|
|
if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL)
|
|
return (EINVAL);
|
|
|
|
switch (prop) {
|
|
case ZPOOL_PROP_VERSION:
|
|
error = nvpair_value_uint64(elem, &intval);
|
|
if (!error &&
|
|
(intval < spa_version(spa) || intval > SPA_VERSION))
|
|
error = EINVAL;
|
|
break;
|
|
|
|
case ZPOOL_PROP_DELEGATION:
|
|
case ZPOOL_PROP_AUTOREPLACE:
|
|
case ZPOOL_PROP_LISTSNAPS:
|
|
error = nvpair_value_uint64(elem, &intval);
|
|
if (!error && intval > 1)
|
|
error = EINVAL;
|
|
break;
|
|
|
|
case ZPOOL_PROP_BOOTFS:
|
|
/*
|
|
* If the pool version is less than SPA_VERSION_BOOTFS,
|
|
* or the pool is still being created (version == 0),
|
|
* the bootfs property cannot be set.
|
|
*/
|
|
if (spa_version(spa) < SPA_VERSION_BOOTFS) {
|
|
error = ENOTSUP;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Make sure the vdev config is bootable
|
|
*/
|
|
if (!vdev_is_bootable(spa->spa_root_vdev)) {
|
|
error = ENOTSUP;
|
|
break;
|
|
}
|
|
|
|
reset_bootfs = 1;
|
|
|
|
error = nvpair_value_string(elem, &strval);
|
|
|
|
if (!error) {
|
|
uint64_t compress;
|
|
|
|
if (strval == NULL || strval[0] == '\0') {
|
|
objnum = zpool_prop_default_numeric(
|
|
ZPOOL_PROP_BOOTFS);
|
|
break;
|
|
}
|
|
|
|
if (error = dmu_objset_open(strval, DMU_OST_ZFS,
|
|
DS_MODE_USER | DS_MODE_READONLY, &os))
|
|
break;
|
|
|
|
/* We don't support gzip bootable datasets */
|
|
if ((error = dsl_prop_get_integer(strval,
|
|
zfs_prop_to_name(ZFS_PROP_COMPRESSION),
|
|
&compress, NULL)) == 0 &&
|
|
!BOOTFS_COMPRESS_VALID(compress)) {
|
|
error = ENOTSUP;
|
|
} else {
|
|
objnum = dmu_objset_id(os);
|
|
}
|
|
dmu_objset_close(os);
|
|
}
|
|
break;
|
|
|
|
case ZPOOL_PROP_FAILUREMODE:
|
|
error = nvpair_value_uint64(elem, &intval);
|
|
if (!error && (intval < ZIO_FAILURE_MODE_WAIT ||
|
|
intval > ZIO_FAILURE_MODE_PANIC))
|
|
error = EINVAL;
|
|
|
|
/*
|
|
* This is a special case which only occurs when
|
|
* the pool has completely failed. This allows
|
|
* the user to change the in-core failmode property
|
|
* without syncing it out to disk (I/Os might
|
|
* currently be blocked). We do this by returning
|
|
* EIO to the caller (spa_prop_set) to trick it
|
|
* into thinking we encountered a property validation
|
|
* error.
|
|
*/
|
|
if (!error && spa_suspended(spa)) {
|
|
spa->spa_failmode = intval;
|
|
error = EIO;
|
|
}
|
|
break;
|
|
|
|
case ZPOOL_PROP_CACHEFILE:
|
|
if ((error = nvpair_value_string(elem, &strval)) != 0)
|
|
break;
|
|
|
|
if (strval[0] == '\0')
|
|
break;
|
|
|
|
if (strcmp(strval, "none") == 0)
|
|
break;
|
|
|
|
if (strval[0] != '/') {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
slash = strrchr(strval, '/');
|
|
ASSERT(slash != NULL);
|
|
|
|
if (slash[1] == '\0' || strcmp(slash, "/.") == 0 ||
|
|
strcmp(slash, "/..") == 0)
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (error)
|
|
break;
|
|
}
|
|
|
|
if (!error && reset_bootfs) {
|
|
error = nvlist_remove(props,
|
|
zpool_prop_to_name(ZPOOL_PROP_BOOTFS), DATA_TYPE_STRING);
|
|
|
|
if (!error) {
|
|
error = nvlist_add_uint64(props,
|
|
zpool_prop_to_name(ZPOOL_PROP_BOOTFS), objnum);
|
|
}
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
void
|
|
spa_configfile_set(spa_t *spa, nvlist_t *nvp, boolean_t need_sync)
|
|
{
|
|
char *cachefile;
|
|
spa_config_dirent_t *dp;
|
|
|
|
if (nvlist_lookup_string(nvp, zpool_prop_to_name(ZPOOL_PROP_CACHEFILE),
|
|
&cachefile) != 0)
|
|
return;
|
|
|
|
dp = kmem_alloc(sizeof (spa_config_dirent_t),
|
|
KM_SLEEP);
|
|
|
|
if (cachefile[0] == '\0')
|
|
dp->scd_path = spa_strdup(spa_config_path);
|
|
else if (strcmp(cachefile, "none") == 0)
|
|
dp->scd_path = NULL;
|
|
else
|
|
dp->scd_path = spa_strdup(cachefile);
|
|
|
|
list_insert_head(&spa->spa_config_list, dp);
|
|
if (need_sync)
|
|
spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE);
|
|
}
|
|
|
|
int
|
|
spa_prop_set(spa_t *spa, nvlist_t *nvp)
|
|
{
|
|
int error;
|
|
nvpair_t *elem;
|
|
boolean_t need_sync = B_FALSE;
|
|
zpool_prop_t prop;
|
|
|
|
if ((error = spa_prop_validate(spa, nvp)) != 0)
|
|
return (error);
|
|
|
|
elem = NULL;
|
|
while ((elem = nvlist_next_nvpair(nvp, elem)) != NULL) {
|
|
if ((prop = zpool_name_to_prop(
|
|
nvpair_name(elem))) == ZPROP_INVAL)
|
|
return (EINVAL);
|
|
|
|
if (prop == ZPOOL_PROP_CACHEFILE || prop == ZPOOL_PROP_ALTROOT)
|
|
continue;
|
|
|
|
need_sync = B_TRUE;
|
|
break;
|
|
}
|
|
|
|
if (need_sync)
|
|
return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_sync_props,
|
|
spa, nvp, 3));
|
|
else
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* If the bootfs property value is dsobj, clear it.
|
|
*/
|
|
void
|
|
spa_prop_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx)
|
|
{
|
|
if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) {
|
|
VERIFY(zap_remove(spa->spa_meta_objset,
|
|
spa->spa_pool_props_object,
|
|
zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0);
|
|
spa->spa_bootfs = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ==========================================================================
|
|
* SPA state manipulation (open/create/destroy/import/export)
|
|
* ==========================================================================
|
|
*/
|
|
|
|
static int
|
|
spa_error_entry_compare(const void *a, const void *b)
|
|
{
|
|
spa_error_entry_t *sa = (spa_error_entry_t *)a;
|
|
spa_error_entry_t *sb = (spa_error_entry_t *)b;
|
|
int ret;
|
|
|
|
ret = bcmp(&sa->se_bookmark, &sb->se_bookmark,
|
|
sizeof (zbookmark_t));
|
|
|
|
if (ret < 0)
|
|
return (-1);
|
|
else if (ret > 0)
|
|
return (1);
|
|
else
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Utility function which retrieves copies of the current logs and
|
|
* re-initializes them in the process.
|
|
*/
|
|
void
|
|
spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub)
|
|
{
|
|
ASSERT(MUTEX_HELD(&spa->spa_errlist_lock));
|
|
|
|
bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t));
|
|
bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t));
|
|
|
|
avl_create(&spa->spa_errlist_scrub,
|
|
spa_error_entry_compare, sizeof (spa_error_entry_t),
|
|
offsetof(spa_error_entry_t, se_avl));
|
|
avl_create(&spa->spa_errlist_last,
|
|
spa_error_entry_compare, sizeof (spa_error_entry_t),
|
|
offsetof(spa_error_entry_t, se_avl));
|
|
}
|
|
|
|
/*
|
|
* Activate an uninitialized pool.
|
|
*/
|
|
static void
|
|
spa_activate(spa_t *spa, int mode)
|
|
{
|
|
ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED);
|
|
|
|
spa->spa_state = POOL_STATE_ACTIVE;
|
|
spa->spa_mode = mode;
|
|
|
|
spa->spa_normal_class = metaslab_class_create(zfs_metaslab_ops);
|
|
spa->spa_log_class = metaslab_class_create(zfs_metaslab_ops);
|
|
|
|
for (int t = 0; t < ZIO_TYPES; t++) {
|
|
const zio_taskq_info_t *ztip = &zio_taskqs[t];
|
|
for (int q = 0; q < ZIO_TASKQ_TYPES; q++) {
|
|
enum zti_modes mode = ztip->zti_nthreads[q].zti_mode;
|
|
uint_t value = ztip->zti_nthreads[q].zti_value;
|
|
char name[32];
|
|
|
|
(void) snprintf(name, sizeof (name),
|
|
"%s_%s", ztip->zti_name, zio_taskq_types[q]);
|
|
|
|
if (mode == zti_mode_tune) {
|
|
mode = zio_taskq_tune_mode;
|
|
value = zio_taskq_tune_value;
|
|
if (mode == zti_mode_tune)
|
|
mode = zti_mode_online_percent;
|
|
}
|
|
|
|
switch (mode) {
|
|
case zti_mode_fixed:
|
|
ASSERT3U(value, >=, 1);
|
|
value = MAX(value, 1);
|
|
|
|
spa->spa_zio_taskq[t][q] = taskq_create(name,
|
|
value, maxclsyspri, 50, INT_MAX,
|
|
TASKQ_PREPOPULATE);
|
|
break;
|
|
|
|
case zti_mode_online_percent:
|
|
spa->spa_zio_taskq[t][q] = taskq_create(name,
|
|
value, maxclsyspri, 50, INT_MAX,
|
|
TASKQ_PREPOPULATE | TASKQ_THREADS_CPU_PCT);
|
|
break;
|
|
|
|
case zti_mode_tune:
|
|
default:
|
|
panic("unrecognized mode for "
|
|
"zio_taskqs[%u]->zti_nthreads[%u] (%u:%u) "
|
|
"in spa_activate()",
|
|
t, q, mode, value);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
list_create(&spa->spa_config_dirty_list, sizeof (vdev_t),
|
|
offsetof(vdev_t, vdev_config_dirty_node));
|
|
list_create(&spa->spa_state_dirty_list, sizeof (vdev_t),
|
|
offsetof(vdev_t, vdev_state_dirty_node));
|
|
|
|
txg_list_create(&spa->spa_vdev_txg_list,
|
|
offsetof(struct vdev, vdev_txg_node));
|
|
|
|
avl_create(&spa->spa_errlist_scrub,
|
|
spa_error_entry_compare, sizeof (spa_error_entry_t),
|
|
offsetof(spa_error_entry_t, se_avl));
|
|
avl_create(&spa->spa_errlist_last,
|
|
spa_error_entry_compare, sizeof (spa_error_entry_t),
|
|
offsetof(spa_error_entry_t, se_avl));
|
|
}
|
|
|
|
/*
|
|
* Opposite of spa_activate().
|
|
*/
|
|
static void
|
|
spa_deactivate(spa_t *spa)
|
|
{
|
|
ASSERT(spa->spa_sync_on == B_FALSE);
|
|
ASSERT(spa->spa_dsl_pool == NULL);
|
|
ASSERT(spa->spa_root_vdev == NULL);
|
|
ASSERT(spa->spa_async_zio_root == NULL);
|
|
ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED);
|
|
|
|
txg_list_destroy(&spa->spa_vdev_txg_list);
|
|
|
|
list_destroy(&spa->spa_config_dirty_list);
|
|
list_destroy(&spa->spa_state_dirty_list);
|
|
|
|
for (int t = 0; t < ZIO_TYPES; t++) {
|
|
for (int q = 0; q < ZIO_TASKQ_TYPES; q++) {
|
|
taskq_destroy(spa->spa_zio_taskq[t][q]);
|
|
spa->spa_zio_taskq[t][q] = NULL;
|
|
}
|
|
}
|
|
|
|
metaslab_class_destroy(spa->spa_normal_class);
|
|
spa->spa_normal_class = NULL;
|
|
|
|
metaslab_class_destroy(spa->spa_log_class);
|
|
spa->spa_log_class = NULL;
|
|
|
|
/*
|
|
* If this was part of an import or the open otherwise failed, we may
|
|
* still have errors left in the queues. Empty them just in case.
|
|
*/
|
|
spa_errlog_drain(spa);
|
|
|
|
avl_destroy(&spa->spa_errlist_scrub);
|
|
avl_destroy(&spa->spa_errlist_last);
|
|
|
|
spa->spa_state = POOL_STATE_UNINITIALIZED;
|
|
}
|
|
|
|
/*
|
|
* Verify a pool configuration, and construct the vdev tree appropriately. This
|
|
* will create all the necessary vdevs in the appropriate layout, with each vdev
|
|
* in the CLOSED state. This will prep the pool before open/creation/import.
|
|
* All vdev validation is done by the vdev_alloc() routine.
|
|
*/
|
|
static int
|
|
spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent,
|
|
uint_t id, int atype)
|
|
{
|
|
nvlist_t **child;
|
|
uint_t c, children;
|
|
int error;
|
|
|
|
if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0)
|
|
return (error);
|
|
|
|
if ((*vdp)->vdev_ops->vdev_op_leaf)
|
|
return (0);
|
|
|
|
error = nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
|
|
&child, &children);
|
|
|
|
if (error == ENOENT)
|
|
return (0);
|
|
|
|
if (error) {
|
|
vdev_free(*vdp);
|
|
*vdp = NULL;
|
|
return (EINVAL);
|
|
}
|
|
|
|
for (c = 0; c < children; c++) {
|
|
vdev_t *vd;
|
|
if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c,
|
|
atype)) != 0) {
|
|
vdev_free(*vdp);
|
|
*vdp = NULL;
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
ASSERT(*vdp != NULL);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Opposite of spa_load().
|
|
*/
|
|
static void
|
|
spa_unload(spa_t *spa)
|
|
{
|
|
int i;
|
|
|
|
ASSERT(MUTEX_HELD(&spa_namespace_lock));
|
|
|
|
/*
|
|
* Stop async tasks.
|
|
*/
|
|
spa_async_suspend(spa);
|
|
|
|
/*
|
|
* Stop syncing.
|
|
*/
|
|
if (spa->spa_sync_on) {
|
|
txg_sync_stop(spa->spa_dsl_pool);
|
|
spa->spa_sync_on = B_FALSE;
|
|
}
|
|
|
|
/*
|
|
* Wait for any outstanding async I/O to complete.
|
|
*/
|
|
if (spa->spa_async_zio_root != NULL) {
|
|
(void) zio_wait(spa->spa_async_zio_root);
|
|
spa->spa_async_zio_root = NULL;
|
|
}
|
|
|
|
/*
|
|
* Close the dsl pool.
|
|
*/
|
|
if (spa->spa_dsl_pool) {
|
|
dsl_pool_close(spa->spa_dsl_pool);
|
|
spa->spa_dsl_pool = NULL;
|
|
}
|
|
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
|
|
/*
|
|
* Drop and purge level 2 cache
|
|
*/
|
|
spa_l2cache_drop(spa);
|
|
|
|
/*
|
|
* Close all vdevs.
|
|
*/
|
|
if (spa->spa_root_vdev)
|
|
vdev_free(spa->spa_root_vdev);
|
|
ASSERT(spa->spa_root_vdev == NULL);
|
|
|
|
for (i = 0; i < spa->spa_spares.sav_count; i++)
|
|
vdev_free(spa->spa_spares.sav_vdevs[i]);
|
|
if (spa->spa_spares.sav_vdevs) {
|
|
kmem_free(spa->spa_spares.sav_vdevs,
|
|
spa->spa_spares.sav_count * sizeof (void *));
|
|
spa->spa_spares.sav_vdevs = NULL;
|
|
}
|
|
if (spa->spa_spares.sav_config) {
|
|
nvlist_free(spa->spa_spares.sav_config);
|
|
spa->spa_spares.sav_config = NULL;
|
|
}
|
|
spa->spa_spares.sav_count = 0;
|
|
|
|
for (i = 0; i < spa->spa_l2cache.sav_count; i++)
|
|
vdev_free(spa->spa_l2cache.sav_vdevs[i]);
|
|
if (spa->spa_l2cache.sav_vdevs) {
|
|
kmem_free(spa->spa_l2cache.sav_vdevs,
|
|
spa->spa_l2cache.sav_count * sizeof (void *));
|
|
spa->spa_l2cache.sav_vdevs = NULL;
|
|
}
|
|
if (spa->spa_l2cache.sav_config) {
|
|
nvlist_free(spa->spa_l2cache.sav_config);
|
|
spa->spa_l2cache.sav_config = NULL;
|
|
}
|
|
spa->spa_l2cache.sav_count = 0;
|
|
|
|
spa->spa_async_suspended = 0;
|
|
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
}
|
|
|
|
/*
|
|
* Load (or re-load) the current list of vdevs describing the active spares for
|
|
* this pool. When this is called, we have some form of basic information in
|
|
* 'spa_spares.sav_config'. We parse this into vdevs, try to open them, and
|
|
* then re-generate a more complete list including status information.
|
|
*/
|
|
static void
|
|
spa_load_spares(spa_t *spa)
|
|
{
|
|
nvlist_t **spares;
|
|
uint_t nspares;
|
|
int i;
|
|
vdev_t *vd, *tvd;
|
|
|
|
ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL);
|
|
|
|
/*
|
|
* First, close and free any existing spare vdevs.
|
|
*/
|
|
for (i = 0; i < spa->spa_spares.sav_count; i++) {
|
|
vd = spa->spa_spares.sav_vdevs[i];
|
|
|
|
/* Undo the call to spa_activate() below */
|
|
if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid,
|
|
B_FALSE)) != NULL && tvd->vdev_isspare)
|
|
spa_spare_remove(tvd);
|
|
vdev_close(vd);
|
|
vdev_free(vd);
|
|
}
|
|
|
|
if (spa->spa_spares.sav_vdevs)
|
|
kmem_free(spa->spa_spares.sav_vdevs,
|
|
spa->spa_spares.sav_count * sizeof (void *));
|
|
|
|
if (spa->spa_spares.sav_config == NULL)
|
|
nspares = 0;
|
|
else
|
|
VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config,
|
|
ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0);
|
|
|
|
spa->spa_spares.sav_count = (int)nspares;
|
|
spa->spa_spares.sav_vdevs = NULL;
|
|
|
|
if (nspares == 0)
|
|
return;
|
|
|
|
/*
|
|
* Construct the array of vdevs, opening them to get status in the
|
|
* process. For each spare, there is potentially two different vdev_t
|
|
* structures associated with it: one in the list of spares (used only
|
|
* for basic validation purposes) and one in the active vdev
|
|
* configuration (if it's spared in). During this phase we open and
|
|
* validate each vdev on the spare list. If the vdev also exists in the
|
|
* active configuration, then we also mark this vdev as an active spare.
|
|
*/
|
|
spa->spa_spares.sav_vdevs = kmem_alloc(nspares * sizeof (void *),
|
|
KM_SLEEP);
|
|
for (i = 0; i < spa->spa_spares.sav_count; i++) {
|
|
VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0,
|
|
VDEV_ALLOC_SPARE) == 0);
|
|
ASSERT(vd != NULL);
|
|
|
|
spa->spa_spares.sav_vdevs[i] = vd;
|
|
|
|
if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid,
|
|
B_FALSE)) != NULL) {
|
|
if (!tvd->vdev_isspare)
|
|
spa_spare_add(tvd);
|
|
|
|
/*
|
|
* We only mark the spare active if we were successfully
|
|
* able to load the vdev. Otherwise, importing a pool
|
|
* with a bad active spare would result in strange
|
|
* behavior, because multiple pool would think the spare
|
|
* is actively in use.
|
|
*
|
|
* There is a vulnerability here to an equally bizarre
|
|
* circumstance, where a dead active spare is later
|
|
* brought back to life (onlined or otherwise). Given
|
|
* the rarity of this scenario, and the extra complexity
|
|
* it adds, we ignore the possibility.
|
|
*/
|
|
if (!vdev_is_dead(tvd))
|
|
spa_spare_activate(tvd);
|
|
}
|
|
|
|
vd->vdev_top = vd;
|
|
vd->vdev_aux = &spa->spa_spares;
|
|
|
|
if (vdev_open(vd) != 0)
|
|
continue;
|
|
|
|
if (vdev_validate_aux(vd) == 0)
|
|
spa_spare_add(vd);
|
|
}
|
|
|
|
/*
|
|
* Recompute the stashed list of spares, with status information
|
|
* this time.
|
|
*/
|
|
VERIFY(nvlist_remove(spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES,
|
|
DATA_TYPE_NVLIST_ARRAY) == 0);
|
|
|
|
spares = kmem_alloc(spa->spa_spares.sav_count * sizeof (void *),
|
|
KM_SLEEP);
|
|
for (i = 0; i < spa->spa_spares.sav_count; i++)
|
|
spares[i] = vdev_config_generate(spa,
|
|
spa->spa_spares.sav_vdevs[i], B_TRUE, B_TRUE, B_FALSE);
|
|
VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config,
|
|
ZPOOL_CONFIG_SPARES, spares, spa->spa_spares.sav_count) == 0);
|
|
for (i = 0; i < spa->spa_spares.sav_count; i++)
|
|
nvlist_free(spares[i]);
|
|
kmem_free(spares, spa->spa_spares.sav_count * sizeof (void *));
|
|
}
|
|
|
|
/*
|
|
* Load (or re-load) the current list of vdevs describing the active l2cache for
|
|
* this pool. When this is called, we have some form of basic information in
|
|
* 'spa_l2cache.sav_config'. We parse this into vdevs, try to open them, and
|
|
* then re-generate a more complete list including status information.
|
|
* Devices which are already active have their details maintained, and are
|
|
* not re-opened.
|
|
*/
|
|
static void
|
|
spa_load_l2cache(spa_t *spa)
|
|
{
|
|
nvlist_t **l2cache;
|
|
uint_t nl2cache;
|
|
int i, j, oldnvdevs;
|
|
uint64_t guid, size;
|
|
vdev_t *vd, **oldvdevs, **newvdevs;
|
|
spa_aux_vdev_t *sav = &spa->spa_l2cache;
|
|
|
|
ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL);
|
|
|
|
if (sav->sav_config != NULL) {
|
|
VERIFY(nvlist_lookup_nvlist_array(sav->sav_config,
|
|
ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0);
|
|
newvdevs = kmem_alloc(nl2cache * sizeof (void *), KM_SLEEP);
|
|
} else {
|
|
nl2cache = 0;
|
|
}
|
|
|
|
oldvdevs = sav->sav_vdevs;
|
|
oldnvdevs = sav->sav_count;
|
|
sav->sav_vdevs = NULL;
|
|
sav->sav_count = 0;
|
|
|
|
/*
|
|
* Process new nvlist of vdevs.
|
|
*/
|
|
for (i = 0; i < nl2cache; i++) {
|
|
VERIFY(nvlist_lookup_uint64(l2cache[i], ZPOOL_CONFIG_GUID,
|
|
&guid) == 0);
|
|
|
|
newvdevs[i] = NULL;
|
|
for (j = 0; j < oldnvdevs; j++) {
|
|
vd = oldvdevs[j];
|
|
if (vd != NULL && guid == vd->vdev_guid) {
|
|
/*
|
|
* Retain previous vdev for add/remove ops.
|
|
*/
|
|
newvdevs[i] = vd;
|
|
oldvdevs[j] = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (newvdevs[i] == NULL) {
|
|
/*
|
|
* Create new vdev
|
|
*/
|
|
VERIFY(spa_config_parse(spa, &vd, l2cache[i], NULL, 0,
|
|
VDEV_ALLOC_L2CACHE) == 0);
|
|
ASSERT(vd != NULL);
|
|
newvdevs[i] = vd;
|
|
|
|
/*
|
|
* Commit this vdev as an l2cache device,
|
|
* even if it fails to open.
|
|
*/
|
|
spa_l2cache_add(vd);
|
|
|
|
vd->vdev_top = vd;
|
|
vd->vdev_aux = sav;
|
|
|
|
spa_l2cache_activate(vd);
|
|
|
|
if (vdev_open(vd) != 0)
|
|
continue;
|
|
|
|
(void) vdev_validate_aux(vd);
|
|
|
|
if (!vdev_is_dead(vd)) {
|
|
size = vdev_get_rsize(vd);
|
|
l2arc_add_vdev(spa, vd,
|
|
VDEV_LABEL_START_SIZE,
|
|
size - VDEV_LABEL_START_SIZE);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Purge vdevs that were dropped
|
|
*/
|
|
for (i = 0; i < oldnvdevs; i++) {
|
|
uint64_t pool;
|
|
|
|
vd = oldvdevs[i];
|
|
if (vd != NULL) {
|
|
if (spa_l2cache_exists(vd->vdev_guid, &pool) &&
|
|
pool != 0ULL && l2arc_vdev_present(vd))
|
|
l2arc_remove_vdev(vd);
|
|
(void) vdev_close(vd);
|
|
spa_l2cache_remove(vd);
|
|
}
|
|
}
|
|
|
|
if (oldvdevs)
|
|
kmem_free(oldvdevs, oldnvdevs * sizeof (void *));
|
|
|
|
if (sav->sav_config == NULL)
|
|
goto out;
|
|
|
|
sav->sav_vdevs = newvdevs;
|
|
sav->sav_count = (int)nl2cache;
|
|
|
|
/*
|
|
* Recompute the stashed list of l2cache devices, with status
|
|
* information this time.
|
|
*/
|
|
VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE,
|
|
DATA_TYPE_NVLIST_ARRAY) == 0);
|
|
|
|
l2cache = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP);
|
|
for (i = 0; i < sav->sav_count; i++)
|
|
l2cache[i] = vdev_config_generate(spa,
|
|
sav->sav_vdevs[i], B_TRUE, B_FALSE, B_TRUE);
|
|
VERIFY(nvlist_add_nvlist_array(sav->sav_config,
|
|
ZPOOL_CONFIG_L2CACHE, l2cache, sav->sav_count) == 0);
|
|
out:
|
|
for (i = 0; i < sav->sav_count; i++)
|
|
nvlist_free(l2cache[i]);
|
|
if (sav->sav_count)
|
|
kmem_free(l2cache, sav->sav_count * sizeof (void *));
|
|
}
|
|
|
|
static int
|
|
load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value)
|
|
{
|
|
dmu_buf_t *db;
|
|
char *packed = NULL;
|
|
size_t nvsize = 0;
|
|
int error;
|
|
*value = NULL;
|
|
|
|
VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db));
|
|
nvsize = *(uint64_t *)db->db_data;
|
|
dmu_buf_rele(db, FTAG);
|
|
|
|
packed = kmem_alloc(nvsize, KM_SLEEP);
|
|
error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed,
|
|
DMU_READ_PREFETCH);
|
|
if (error == 0)
|
|
error = nvlist_unpack(packed, nvsize, value, 0);
|
|
kmem_free(packed, nvsize);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Checks to see if the given vdev could not be opened, in which case we post a
|
|
* sysevent to notify the autoreplace code that the device has been removed.
|
|
*/
|
|
static void
|
|
spa_check_removed(vdev_t *vd)
|
|
{
|
|
int c;
|
|
|
|
for (c = 0; c < vd->vdev_children; c++)
|
|
spa_check_removed(vd->vdev_child[c]);
|
|
|
|
if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd)) {
|
|
zfs_post_autoreplace(vd->vdev_spa, vd);
|
|
spa_event_notify(vd->vdev_spa, vd, ESC_ZFS_VDEV_CHECK);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Check for missing log devices
|
|
*/
|
|
int
|
|
spa_check_logs(spa_t *spa)
|
|
{
|
|
switch (spa->spa_log_state) {
|
|
case SPA_LOG_MISSING:
|
|
/* need to recheck in case slog has been restored */
|
|
case SPA_LOG_UNKNOWN:
|
|
if (dmu_objset_find(spa->spa_name, zil_check_log_chain, NULL,
|
|
DS_FIND_CHILDREN)) {
|
|
spa->spa_log_state = SPA_LOG_MISSING;
|
|
return (1);
|
|
}
|
|
break;
|
|
|
|
case SPA_LOG_CLEAR:
|
|
(void) dmu_objset_find(spa->spa_name, zil_clear_log_chain, NULL,
|
|
DS_FIND_CHILDREN);
|
|
break;
|
|
}
|
|
spa->spa_log_state = SPA_LOG_GOOD;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Load an existing storage pool, using the pool's builtin spa_config as a
|
|
* source of configuration information.
|
|
*/
|
|
static int
|
|
spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig)
|
|
{
|
|
int error = 0;
|
|
nvlist_t *nvroot = NULL;
|
|
vdev_t *rvd;
|
|
uberblock_t *ub = &spa->spa_uberblock;
|
|
uint64_t config_cache_txg = spa->spa_config_txg;
|
|
uint64_t pool_guid;
|
|
uint64_t version;
|
|
uint64_t autoreplace = 0;
|
|
int orig_mode = spa->spa_mode;
|
|
char *ereport = FM_EREPORT_ZFS_POOL;
|
|
|
|
/*
|
|
* If this is an untrusted config, access the pool in read-only mode.
|
|
* This prevents things like resilvering recently removed devices.
|
|
*/
|
|
if (!mosconfig)
|
|
spa->spa_mode = FREAD;
|
|
|
|
ASSERT(MUTEX_HELD(&spa_namespace_lock));
|
|
|
|
spa->spa_load_state = state;
|
|
|
|
if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) ||
|
|
nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Versioning wasn't explicitly added to the label until later, so if
|
|
* it's not present treat it as the initial version.
|
|
*/
|
|
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) != 0)
|
|
version = SPA_VERSION_INITIAL;
|
|
|
|
(void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG,
|
|
&spa->spa_config_txg);
|
|
|
|
if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) &&
|
|
spa_guid_exists(pool_guid, 0)) {
|
|
error = EEXIST;
|
|
goto out;
|
|
}
|
|
|
|
spa->spa_load_guid = pool_guid;
|
|
|
|
/*
|
|
* Create "The Godfather" zio to hold all async IOs
|
|
*/
|
|
spa->spa_async_zio_root = zio_root(spa, NULL, NULL,
|
|
ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | ZIO_FLAG_GODFATHER);
|
|
|
|
/*
|
|
* Parse the configuration into a vdev tree. We explicitly set the
|
|
* value that will be returned by spa_version() since parsing the
|
|
* configuration requires knowing the version number.
|
|
*/
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
spa->spa_ubsync.ub_version = version;
|
|
error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_LOAD);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
|
|
if (error != 0)
|
|
goto out;
|
|
|
|
ASSERT(spa->spa_root_vdev == rvd);
|
|
ASSERT(spa_guid(spa) == pool_guid);
|
|
|
|
/*
|
|
* Try to open all vdevs, loading each label in the process.
|
|
*/
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
error = vdev_open(rvd);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
if (error != 0)
|
|
goto out;
|
|
|
|
/*
|
|
* We need to validate the vdev labels against the configuration that
|
|
* we have in hand, which is dependent on the setting of mosconfig. If
|
|
* mosconfig is true then we're validating the vdev labels based on
|
|
* that config. Otherwise, we're validating against the cached config
|
|
* (zpool.cache) that was read when we loaded the zfs module, and then
|
|
* later we will recursively call spa_load() and validate against
|
|
* the vdev config.
|
|
*/
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
error = vdev_validate(rvd);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
if (error != 0)
|
|
goto out;
|
|
|
|
if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) {
|
|
error = ENXIO;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Find the best uberblock.
|
|
*/
|
|
vdev_uberblock_load(NULL, rvd, ub);
|
|
|
|
/*
|
|
* If we weren't able to find a single valid uberblock, return failure.
|
|
*/
|
|
if (ub->ub_txg == 0) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = ENXIO;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* If the pool is newer than the code, we can't open it.
|
|
*/
|
|
if (ub->ub_version > SPA_VERSION) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_VERSION_NEWER);
|
|
error = ENOTSUP;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* If the vdev guid sum doesn't match the uberblock, we have an
|
|
* incomplete configuration.
|
|
*/
|
|
if (rvd->vdev_guid_sum != ub->ub_guid_sum && mosconfig) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_BAD_GUID_SUM);
|
|
error = ENXIO;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Initialize internal SPA structures.
|
|
*/
|
|
spa->spa_state = POOL_STATE_ACTIVE;
|
|
spa->spa_ubsync = spa->spa_uberblock;
|
|
spa->spa_first_txg = spa_last_synced_txg(spa) + 1;
|
|
error = dsl_pool_open(spa, spa->spa_first_txg, &spa->spa_dsl_pool);
|
|
if (error) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
goto out;
|
|
}
|
|
spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset;
|
|
|
|
if (zap_lookup(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG,
|
|
sizeof (uint64_t), 1, &spa->spa_config_object) != 0) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
if (!mosconfig) {
|
|
nvlist_t *newconfig;
|
|
uint64_t hostid;
|
|
|
|
if (load_nvlist(spa, spa->spa_config_object, &newconfig) != 0) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
if (!spa_is_root(spa) && nvlist_lookup_uint64(newconfig,
|
|
ZPOOL_CONFIG_HOSTID, &hostid) == 0) {
|
|
char *hostname;
|
|
unsigned long myhostid = 0;
|
|
|
|
VERIFY(nvlist_lookup_string(newconfig,
|
|
ZPOOL_CONFIG_HOSTNAME, &hostname) == 0);
|
|
|
|
(void) ddi_strtoul(hw_serial, NULL, 10, &myhostid);
|
|
if (check_hostid && hostid != 0 && myhostid != 0 &&
|
|
(unsigned long)hostid != myhostid) {
|
|
cmn_err(CE_WARN, "pool '%s' could not be "
|
|
"loaded as it was last accessed by "
|
|
"another system (host: %s hostid: 0x%lx). "
|
|
"See: http://www.sun.com/msg/ZFS-8000-EY",
|
|
spa_name(spa), hostname,
|
|
(unsigned long)hostid);
|
|
error = EBADF;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
spa_config_set(spa, newconfig);
|
|
spa_unload(spa);
|
|
spa_deactivate(spa);
|
|
spa_activate(spa, orig_mode);
|
|
|
|
return (spa_load(spa, newconfig, state, B_TRUE));
|
|
}
|
|
|
|
if (zap_lookup(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST,
|
|
sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj) != 0) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Load the bit that tells us to use the new accounting function
|
|
* (raid-z deflation). If we have an older pool, this will not
|
|
* be present.
|
|
*/
|
|
error = zap_lookup(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE,
|
|
sizeof (uint64_t), 1, &spa->spa_deflate);
|
|
if (error != 0 && error != ENOENT) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Load the persistent error log. If we have an older pool, this will
|
|
* not be present.
|
|
*/
|
|
error = zap_lookup(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_LAST,
|
|
sizeof (uint64_t), 1, &spa->spa_errlog_last);
|
|
if (error != 0 && error != ENOENT) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
error = zap_lookup(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_SCRUB,
|
|
sizeof (uint64_t), 1, &spa->spa_errlog_scrub);
|
|
if (error != 0 && error != ENOENT) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Load the history object. If we have an older pool, this
|
|
* will not be present.
|
|
*/
|
|
error = zap_lookup(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_HISTORY,
|
|
sizeof (uint64_t), 1, &spa->spa_history);
|
|
if (error != 0 && error != ENOENT) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Load any hot spares for this pool.
|
|
*/
|
|
error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
|
|
DMU_POOL_SPARES, sizeof (uint64_t), 1, &spa->spa_spares.sav_object);
|
|
if (error != 0 && error != ENOENT) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
if (error == 0) {
|
|
ASSERT(spa_version(spa) >= SPA_VERSION_SPARES);
|
|
if (load_nvlist(spa, spa->spa_spares.sav_object,
|
|
&spa->spa_spares.sav_config) != 0) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
spa_load_spares(spa);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
}
|
|
|
|
/*
|
|
* Load any level 2 ARC devices for this pool.
|
|
*/
|
|
error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
|
|
DMU_POOL_L2CACHE, sizeof (uint64_t), 1,
|
|
&spa->spa_l2cache.sav_object);
|
|
if (error != 0 && error != ENOENT) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
if (error == 0) {
|
|
ASSERT(spa_version(spa) >= SPA_VERSION_L2CACHE);
|
|
if (load_nvlist(spa, spa->spa_l2cache.sav_object,
|
|
&spa->spa_l2cache.sav_config) != 0) {
|
|
vdev_set_state(rvd, B_TRUE,
|
|
VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
spa_load_l2cache(spa);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
}
|
|
|
|
if (spa_check_logs(spa)) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_BAD_LOG);
|
|
error = ENXIO;
|
|
ereport = FM_EREPORT_ZFS_LOG_REPLAY;
|
|
goto out;
|
|
}
|
|
|
|
|
|
spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION);
|
|
|
|
error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
|
|
DMU_POOL_PROPS, sizeof (uint64_t), 1, &spa->spa_pool_props_object);
|
|
|
|
if (error && error != ENOENT) {
|
|
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN,
|
|
VDEV_AUX_CORRUPT_DATA);
|
|
error = EIO;
|
|
goto out;
|
|
}
|
|
|
|
if (error == 0) {
|
|
(void) zap_lookup(spa->spa_meta_objset,
|
|
spa->spa_pool_props_object,
|
|
zpool_prop_to_name(ZPOOL_PROP_BOOTFS),
|
|
sizeof (uint64_t), 1, &spa->spa_bootfs);
|
|
(void) zap_lookup(spa->spa_meta_objset,
|
|
spa->spa_pool_props_object,
|
|
zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE),
|
|
sizeof (uint64_t), 1, &autoreplace);
|
|
(void) zap_lookup(spa->spa_meta_objset,
|
|
spa->spa_pool_props_object,
|
|
zpool_prop_to_name(ZPOOL_PROP_DELEGATION),
|
|
sizeof (uint64_t), 1, &spa->spa_delegation);
|
|
(void) zap_lookup(spa->spa_meta_objset,
|
|
spa->spa_pool_props_object,
|
|
zpool_prop_to_name(ZPOOL_PROP_FAILUREMODE),
|
|
sizeof (uint64_t), 1, &spa->spa_failmode);
|
|
}
|
|
|
|
/*
|
|
* If the 'autoreplace' property is set, then post a resource notifying
|
|
* the ZFS DE that it should not issue any faults for unopenable
|
|
* devices. We also iterate over the vdevs, and post a sysevent for any
|
|
* unopenable vdevs so that the normal autoreplace handler can take
|
|
* over.
|
|
*/
|
|
if (autoreplace && state != SPA_LOAD_TRYIMPORT)
|
|
spa_check_removed(spa->spa_root_vdev);
|
|
|
|
/*
|
|
* Load the vdev state for all toplevel vdevs.
|
|
*/
|
|
vdev_load(rvd);
|
|
|
|
/*
|
|
* Propagate the leaf DTLs we just loaded all the way up the tree.
|
|
*/
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
vdev_dtl_reassess(rvd, 0, 0, B_FALSE);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
|
|
/*
|
|
* Check the state of the root vdev. If it can't be opened, it
|
|
* indicates one or more toplevel vdevs are faulted.
|
|
*/
|
|
if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) {
|
|
error = ENXIO;
|
|
goto out;
|
|
}
|
|
|
|
if (spa_writeable(spa)) {
|
|
dmu_tx_t *tx;
|
|
int need_update = B_FALSE;
|
|
|
|
ASSERT(state != SPA_LOAD_TRYIMPORT);
|
|
|
|
/*
|
|
* Claim log blocks that haven't been committed yet.
|
|
* This must all happen in a single txg.
|
|
*/
|
|
tx = dmu_tx_create_assigned(spa_get_dsl(spa),
|
|
spa_first_txg(spa));
|
|
(void) dmu_objset_find(spa_name(spa),
|
|
zil_claim, tx, DS_FIND_CHILDREN);
|
|
dmu_tx_commit(tx);
|
|
|
|
spa->spa_sync_on = B_TRUE;
|
|
txg_sync_start(spa->spa_dsl_pool);
|
|
|
|
/*
|
|
* Wait for all claims to sync.
|
|
*/
|
|
txg_wait_synced(spa->spa_dsl_pool, 0);
|
|
|
|
/*
|
|
* If the config cache is stale, or we have uninitialized
|
|
* metaslabs (see spa_vdev_add()), then update the config.
|
|
*
|
|
* If spa_load_verbatim is true, trust the current
|
|
* in-core spa_config and update the disk labels.
|
|
*/
|
|
if (config_cache_txg != spa->spa_config_txg ||
|
|
state == SPA_LOAD_IMPORT || spa->spa_load_verbatim)
|
|
need_update = B_TRUE;
|
|
|
|
for (int c = 0; c < rvd->vdev_children; c++)
|
|
if (rvd->vdev_child[c]->vdev_ms_array == 0)
|
|
need_update = B_TRUE;
|
|
|
|
/*
|
|
* Update the config cache asychronously in case we're the
|
|
* root pool, in which case the config cache isn't writable yet.
|
|
*/
|
|
if (need_update)
|
|
spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE);
|
|
|
|
/*
|
|
* Check all DTLs to see if anything needs resilvering.
|
|
*/
|
|
if (vdev_resilver_needed(rvd, NULL, NULL))
|
|
spa_async_request(spa, SPA_ASYNC_RESILVER);
|
|
}
|
|
|
|
error = 0;
|
|
out:
|
|
spa->spa_minref = refcount_count(&spa->spa_refcount);
|
|
if (error && error != EBADF)
|
|
zfs_ereport_post(ereport, spa, NULL, NULL, 0, 0);
|
|
spa->spa_load_state = SPA_LOAD_NONE;
|
|
spa->spa_ena = 0;
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Pool Open/Import
|
|
*
|
|
* The import case is identical to an open except that the configuration is sent
|
|
* down from userland, instead of grabbed from the configuration cache. For the
|
|
* case of an open, the pool configuration will exist in the
|
|
* POOL_STATE_UNINITIALIZED state.
|
|
*
|
|
* The stats information (gen/count/ustats) is used to gather vdev statistics at
|
|
* the same time open the pool, without having to keep around the spa_t in some
|
|
* ambiguous state.
|
|
*/
|
|
static int
|
|
spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
int locked = B_FALSE;
|
|
|
|
*spapp = NULL;
|
|
|
|
/*
|
|
* As disgusting as this is, we need to support recursive calls to this
|
|
* function because dsl_dir_open() is called during spa_load(), and ends
|
|
* up calling spa_open() again. The real fix is to figure out how to
|
|
* avoid dsl_dir_open() calling this in the first place.
|
|
*/
|
|
if (mutex_owner(&spa_namespace_lock) != curthread) {
|
|
mutex_enter(&spa_namespace_lock);
|
|
locked = B_TRUE;
|
|
}
|
|
|
|
if ((spa = spa_lookup(pool)) == NULL) {
|
|
if (locked)
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (ENOENT);
|
|
}
|
|
if (spa->spa_state == POOL_STATE_UNINITIALIZED) {
|
|
|
|
spa_activate(spa, spa_mode_global);
|
|
|
|
error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE);
|
|
|
|
if (error == EBADF) {
|
|
/*
|
|
* If vdev_validate() returns failure (indicated by
|
|
* EBADF), it indicates that one of the vdevs indicates
|
|
* that the pool has been exported or destroyed. If
|
|
* this is the case, the config cache is out of sync and
|
|
* we should remove the pool from the namespace.
|
|
*/
|
|
spa_unload(spa);
|
|
spa_deactivate(spa);
|
|
spa_config_sync(spa, B_TRUE, B_TRUE);
|
|
spa_remove(spa);
|
|
if (locked)
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (ENOENT);
|
|
}
|
|
|
|
if (error) {
|
|
/*
|
|
* We can't open the pool, but we still have useful
|
|
* information: the state of each vdev after the
|
|
* attempted vdev_open(). Return this to the user.
|
|
*/
|
|
if (config != NULL && spa->spa_root_vdev != NULL)
|
|
*config = spa_config_generate(spa, NULL, -1ULL,
|
|
B_TRUE);
|
|
spa_unload(spa);
|
|
spa_deactivate(spa);
|
|
spa->spa_last_open_failed = B_TRUE;
|
|
if (locked)
|
|
mutex_exit(&spa_namespace_lock);
|
|
*spapp = NULL;
|
|
return (error);
|
|
} else {
|
|
spa->spa_last_open_failed = B_FALSE;
|
|
}
|
|
}
|
|
|
|
spa_open_ref(spa, tag);
|
|
|
|
if (locked)
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
*spapp = spa;
|
|
|
|
if (config != NULL)
|
|
*config = spa_config_generate(spa, NULL, -1ULL, B_TRUE);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
spa_open(const char *name, spa_t **spapp, void *tag)
|
|
{
|
|
return (spa_open_common(name, spapp, tag, NULL));
|
|
}
|
|
|
|
/*
|
|
* Lookup the given spa_t, incrementing the inject count in the process,
|
|
* preventing it from being exported or destroyed.
|
|
*/
|
|
spa_t *
|
|
spa_inject_addref(char *name)
|
|
{
|
|
spa_t *spa;
|
|
|
|
mutex_enter(&spa_namespace_lock);
|
|
if ((spa = spa_lookup(name)) == NULL) {
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (NULL);
|
|
}
|
|
spa->spa_inject_ref++;
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
return (spa);
|
|
}
|
|
|
|
void
|
|
spa_inject_delref(spa_t *spa)
|
|
{
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa->spa_inject_ref--;
|
|
mutex_exit(&spa_namespace_lock);
|
|
}
|
|
|
|
/*
|
|
* Add spares device information to the nvlist.
|
|
*/
|
|
static void
|
|
spa_add_spares(spa_t *spa, nvlist_t *config)
|
|
{
|
|
nvlist_t **spares;
|
|
uint_t i, nspares;
|
|
nvlist_t *nvroot;
|
|
uint64_t guid;
|
|
vdev_stat_t *vs;
|
|
uint_t vsc;
|
|
uint64_t pool;
|
|
|
|
ASSERT(spa_config_held(spa, SCL_CONFIG, RW_READER));
|
|
|
|
if (spa->spa_spares.sav_count == 0)
|
|
return;
|
|
|
|
VERIFY(nvlist_lookup_nvlist(config,
|
|
ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0);
|
|
VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config,
|
|
ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0);
|
|
if (nspares != 0) {
|
|
VERIFY(nvlist_add_nvlist_array(nvroot,
|
|
ZPOOL_CONFIG_SPARES, spares, nspares) == 0);
|
|
VERIFY(nvlist_lookup_nvlist_array(nvroot,
|
|
ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0);
|
|
|
|
/*
|
|
* Go through and find any spares which have since been
|
|
* repurposed as an active spare. If this is the case, update
|
|
* their status appropriately.
|
|
*/
|
|
for (i = 0; i < nspares; i++) {
|
|
VERIFY(nvlist_lookup_uint64(spares[i],
|
|
ZPOOL_CONFIG_GUID, &guid) == 0);
|
|
if (spa_spare_exists(guid, &pool, NULL) &&
|
|
pool != 0ULL) {
|
|
VERIFY(nvlist_lookup_uint64_array(
|
|
spares[i], ZPOOL_CONFIG_STATS,
|
|
(uint64_t **)&vs, &vsc) == 0);
|
|
vs->vs_state = VDEV_STATE_CANT_OPEN;
|
|
vs->vs_aux = VDEV_AUX_SPARED;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Add l2cache device information to the nvlist, including vdev stats.
|
|
*/
|
|
static void
|
|
spa_add_l2cache(spa_t *spa, nvlist_t *config)
|
|
{
|
|
nvlist_t **l2cache;
|
|
uint_t i, j, nl2cache;
|
|
nvlist_t *nvroot;
|
|
uint64_t guid;
|
|
vdev_t *vd;
|
|
vdev_stat_t *vs;
|
|
uint_t vsc;
|
|
|
|
ASSERT(spa_config_held(spa, SCL_CONFIG, RW_READER));
|
|
|
|
if (spa->spa_l2cache.sav_count == 0)
|
|
return;
|
|
|
|
VERIFY(nvlist_lookup_nvlist(config,
|
|
ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0);
|
|
VERIFY(nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config,
|
|
ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0);
|
|
if (nl2cache != 0) {
|
|
VERIFY(nvlist_add_nvlist_array(nvroot,
|
|
ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0);
|
|
VERIFY(nvlist_lookup_nvlist_array(nvroot,
|
|
ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0);
|
|
|
|
/*
|
|
* Update level 2 cache device stats.
|
|
*/
|
|
|
|
for (i = 0; i < nl2cache; i++) {
|
|
VERIFY(nvlist_lookup_uint64(l2cache[i],
|
|
ZPOOL_CONFIG_GUID, &guid) == 0);
|
|
|
|
vd = NULL;
|
|
for (j = 0; j < spa->spa_l2cache.sav_count; j++) {
|
|
if (guid ==
|
|
spa->spa_l2cache.sav_vdevs[j]->vdev_guid) {
|
|
vd = spa->spa_l2cache.sav_vdevs[j];
|
|
break;
|
|
}
|
|
}
|
|
ASSERT(vd != NULL);
|
|
|
|
VERIFY(nvlist_lookup_uint64_array(l2cache[i],
|
|
ZPOOL_CONFIG_STATS, (uint64_t **)&vs, &vsc) == 0);
|
|
vdev_get_stats(vd, vs);
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
spa_get_stats(const char *name, nvlist_t **config, char *altroot, size_t buflen)
|
|
{
|
|
int error;
|
|
spa_t *spa;
|
|
|
|
*config = NULL;
|
|
error = spa_open_common(name, &spa, FTAG, config);
|
|
|
|
if (spa != NULL) {
|
|
/*
|
|
* This still leaves a window of inconsistency where the spares
|
|
* or l2cache devices could change and the config would be
|
|
* self-inconsistent.
|
|
*/
|
|
spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
|
|
|
|
if (*config != NULL) {
|
|
VERIFY(nvlist_add_uint64(*config,
|
|
ZPOOL_CONFIG_ERRCOUNT,
|
|
spa_get_errlog_size(spa)) == 0);
|
|
|
|
if (spa_suspended(spa))
|
|
VERIFY(nvlist_add_uint64(*config,
|
|
ZPOOL_CONFIG_SUSPENDED,
|
|
spa->spa_failmode) == 0);
|
|
|
|
spa_add_spares(spa, *config);
|
|
spa_add_l2cache(spa, *config);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We want to get the alternate root even for faulted pools, so we cheat
|
|
* and call spa_lookup() directly.
|
|
*/
|
|
if (altroot) {
|
|
if (spa == NULL) {
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa = spa_lookup(name);
|
|
if (spa)
|
|
spa_altroot(spa, altroot, buflen);
|
|
else
|
|
altroot[0] = '\0';
|
|
spa = NULL;
|
|
mutex_exit(&spa_namespace_lock);
|
|
} else {
|
|
spa_altroot(spa, altroot, buflen);
|
|
}
|
|
}
|
|
|
|
if (spa != NULL) {
|
|
spa_config_exit(spa, SCL_CONFIG, FTAG);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Validate that the auxiliary device array is well formed. We must have an
|
|
* array of nvlists, each which describes a valid leaf vdev. If this is an
|
|
* import (mode is VDEV_ALLOC_SPARE), then we allow corrupted spares to be
|
|
* specified, as long as they are well-formed.
|
|
*/
|
|
static int
|
|
spa_validate_aux_devs(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode,
|
|
spa_aux_vdev_t *sav, const char *config, uint64_t version,
|
|
vdev_labeltype_t label)
|
|
{
|
|
nvlist_t **dev;
|
|
uint_t i, ndev;
|
|
vdev_t *vd;
|
|
int error;
|
|
|
|
ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL);
|
|
|
|
/*
|
|
* It's acceptable to have no devs specified.
|
|
*/
|
|
if (nvlist_lookup_nvlist_array(nvroot, config, &dev, &ndev) != 0)
|
|
return (0);
|
|
|
|
if (ndev == 0)
|
|
return (EINVAL);
|
|
|
|
/*
|
|
* Make sure the pool is formatted with a version that supports this
|
|
* device type.
|
|
*/
|
|
if (spa_version(spa) < version)
|
|
return (ENOTSUP);
|
|
|
|
/*
|
|
* Set the pending device list so we correctly handle device in-use
|
|
* checking.
|
|
*/
|
|
sav->sav_pending = dev;
|
|
sav->sav_npending = ndev;
|
|
|
|
for (i = 0; i < ndev; i++) {
|
|
if ((error = spa_config_parse(spa, &vd, dev[i], NULL, 0,
|
|
mode)) != 0)
|
|
goto out;
|
|
|
|
if (!vd->vdev_ops->vdev_op_leaf) {
|
|
vdev_free(vd);
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* The L2ARC currently only supports disk devices in
|
|
* kernel context. For user-level testing, we allow it.
|
|
*/
|
|
#ifdef _KERNEL
|
|
if ((strcmp(config, ZPOOL_CONFIG_L2CACHE) == 0) &&
|
|
strcmp(vd->vdev_ops->vdev_op_type, VDEV_TYPE_DISK) != 0) {
|
|
error = ENOTBLK;
|
|
goto out;
|
|
}
|
|
#endif
|
|
vd->vdev_top = vd;
|
|
|
|
if ((error = vdev_open(vd)) == 0 &&
|
|
(error = vdev_label_init(vd, crtxg, label)) == 0) {
|
|
VERIFY(nvlist_add_uint64(dev[i], ZPOOL_CONFIG_GUID,
|
|
vd->vdev_guid) == 0);
|
|
}
|
|
|
|
vdev_free(vd);
|
|
|
|
if (error &&
|
|
(mode != VDEV_ALLOC_SPARE && mode != VDEV_ALLOC_L2CACHE))
|
|
goto out;
|
|
else
|
|
error = 0;
|
|
}
|
|
|
|
out:
|
|
sav->sav_pending = NULL;
|
|
sav->sav_npending = 0;
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
spa_validate_aux(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode)
|
|
{
|
|
int error;
|
|
|
|
ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL);
|
|
|
|
if ((error = spa_validate_aux_devs(spa, nvroot, crtxg, mode,
|
|
&spa->spa_spares, ZPOOL_CONFIG_SPARES, SPA_VERSION_SPARES,
|
|
VDEV_LABEL_SPARE)) != 0) {
|
|
return (error);
|
|
}
|
|
|
|
return (spa_validate_aux_devs(spa, nvroot, crtxg, mode,
|
|
&spa->spa_l2cache, ZPOOL_CONFIG_L2CACHE, SPA_VERSION_L2CACHE,
|
|
VDEV_LABEL_L2CACHE));
|
|
}
|
|
|
|
static void
|
|
spa_set_aux_vdevs(spa_aux_vdev_t *sav, nvlist_t **devs, int ndevs,
|
|
const char *config)
|
|
{
|
|
int i;
|
|
|
|
if (sav->sav_config != NULL) {
|
|
nvlist_t **olddevs;
|
|
uint_t oldndevs;
|
|
nvlist_t **newdevs;
|
|
|
|
/*
|
|
* Generate new dev list by concatentating with the
|
|
* current dev list.
|
|
*/
|
|
VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, config,
|
|
&olddevs, &oldndevs) == 0);
|
|
|
|
newdevs = kmem_alloc(sizeof (void *) *
|
|
(ndevs + oldndevs), KM_SLEEP);
|
|
for (i = 0; i < oldndevs; i++)
|
|
VERIFY(nvlist_dup(olddevs[i], &newdevs[i],
|
|
KM_SLEEP) == 0);
|
|
for (i = 0; i < ndevs; i++)
|
|
VERIFY(nvlist_dup(devs[i], &newdevs[i + oldndevs],
|
|
KM_SLEEP) == 0);
|
|
|
|
VERIFY(nvlist_remove(sav->sav_config, config,
|
|
DATA_TYPE_NVLIST_ARRAY) == 0);
|
|
|
|
VERIFY(nvlist_add_nvlist_array(sav->sav_config,
|
|
config, newdevs, ndevs + oldndevs) == 0);
|
|
for (i = 0; i < oldndevs + ndevs; i++)
|
|
nvlist_free(newdevs[i]);
|
|
kmem_free(newdevs, (oldndevs + ndevs) * sizeof (void *));
|
|
} else {
|
|
/*
|
|
* Generate a new dev list.
|
|
*/
|
|
VERIFY(nvlist_alloc(&sav->sav_config, NV_UNIQUE_NAME,
|
|
KM_SLEEP) == 0);
|
|
VERIFY(nvlist_add_nvlist_array(sav->sav_config, config,
|
|
devs, ndevs) == 0);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Stop and drop level 2 ARC devices
|
|
*/
|
|
void
|
|
spa_l2cache_drop(spa_t *spa)
|
|
{
|
|
vdev_t *vd;
|
|
int i;
|
|
spa_aux_vdev_t *sav = &spa->spa_l2cache;
|
|
|
|
for (i = 0; i < sav->sav_count; i++) {
|
|
uint64_t pool;
|
|
|
|
vd = sav->sav_vdevs[i];
|
|
ASSERT(vd != NULL);
|
|
|
|
if (spa_l2cache_exists(vd->vdev_guid, &pool) &&
|
|
pool != 0ULL && l2arc_vdev_present(vd))
|
|
l2arc_remove_vdev(vd);
|
|
if (vd->vdev_isl2cache)
|
|
spa_l2cache_remove(vd);
|
|
vdev_clear_stats(vd);
|
|
(void) vdev_close(vd);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Pool Creation
|
|
*/
|
|
int
|
|
spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props,
|
|
const char *history_str, nvlist_t *zplprops)
|
|
{
|
|
spa_t *spa;
|
|
char *altroot = NULL;
|
|
vdev_t *rvd;
|
|
dsl_pool_t *dp;
|
|
dmu_tx_t *tx;
|
|
int c, error = 0;
|
|
uint64_t txg = TXG_INITIAL;
|
|
nvlist_t **spares, **l2cache;
|
|
uint_t nspares, nl2cache;
|
|
uint64_t version;
|
|
|
|
/*
|
|
* If this pool already exists, return failure.
|
|
*/
|
|
mutex_enter(&spa_namespace_lock);
|
|
if (spa_lookup(pool) != NULL) {
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (EEXIST);
|
|
}
|
|
|
|
/*
|
|
* Allocate a new spa_t structure.
|
|
*/
|
|
(void) nvlist_lookup_string(props,
|
|
zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot);
|
|
spa = spa_add(pool, altroot);
|
|
spa_activate(spa, spa_mode_global);
|
|
|
|
spa->spa_uberblock.ub_txg = txg - 1;
|
|
|
|
if (props && (error = spa_prop_validate(spa, props))) {
|
|
spa_deactivate(spa);
|
|
spa_remove(spa);
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (error);
|
|
}
|
|
|
|
if (nvlist_lookup_uint64(props, zpool_prop_to_name(ZPOOL_PROP_VERSION),
|
|
&version) != 0)
|
|
version = SPA_VERSION;
|
|
ASSERT(version <= SPA_VERSION);
|
|
spa->spa_uberblock.ub_version = version;
|
|
spa->spa_ubsync = spa->spa_uberblock;
|
|
|
|
/*
|
|
* Create "The Godfather" zio to hold all async IOs
|
|
*/
|
|
spa->spa_async_zio_root = zio_root(spa, NULL, NULL,
|
|
ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | ZIO_FLAG_GODFATHER);
|
|
|
|
/*
|
|
* Create the root vdev.
|
|
*/
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
|
|
error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD);
|
|
|
|
ASSERT(error != 0 || rvd != NULL);
|
|
ASSERT(error != 0 || spa->spa_root_vdev == rvd);
|
|
|
|
if (error == 0 && !zfs_allocatable_devs(nvroot))
|
|
error = EINVAL;
|
|
|
|
if (error == 0 &&
|
|
(error = vdev_create(rvd, txg, B_FALSE)) == 0 &&
|
|
(error = spa_validate_aux(spa, nvroot, txg,
|
|
VDEV_ALLOC_ADD)) == 0) {
|
|
for (c = 0; c < rvd->vdev_children; c++)
|
|
vdev_init(rvd->vdev_child[c], txg);
|
|
vdev_config_dirty(rvd);
|
|
}
|
|
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
|
|
if (error != 0) {
|
|
spa_unload(spa);
|
|
spa_deactivate(spa);
|
|
spa_remove(spa);
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Get the list of spares, if specified.
|
|
*/
|
|
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
|
|
&spares, &nspares) == 0) {
|
|
VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, NV_UNIQUE_NAME,
|
|
KM_SLEEP) == 0);
|
|
VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config,
|
|
ZPOOL_CONFIG_SPARES, spares, nspares) == 0);
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
spa_load_spares(spa);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
spa->spa_spares.sav_sync = B_TRUE;
|
|
}
|
|
|
|
/*
|
|
* Get the list of level 2 cache devices, if specified.
|
|
*/
|
|
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
|
|
&l2cache, &nl2cache) == 0) {
|
|
VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config,
|
|
NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config,
|
|
ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0);
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
spa_load_l2cache(spa);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
spa->spa_l2cache.sav_sync = B_TRUE;
|
|
}
|
|
|
|
spa->spa_dsl_pool = dp = dsl_pool_create(spa, zplprops, txg);
|
|
spa->spa_meta_objset = dp->dp_meta_objset;
|
|
|
|
tx = dmu_tx_create_assigned(dp, txg);
|
|
|
|
/*
|
|
* Create the pool config object.
|
|
*/
|
|
spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset,
|
|
DMU_OT_PACKED_NVLIST, SPA_CONFIG_BLOCKSIZE,
|
|
DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx);
|
|
|
|
if (zap_add(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG,
|
|
sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) {
|
|
cmn_err(CE_PANIC, "failed to add pool config");
|
|
}
|
|
|
|
/* Newly created pools with the right version are always deflated. */
|
|
if (version >= SPA_VERSION_RAIDZ_DEFLATE) {
|
|
spa->spa_deflate = TRUE;
|
|
if (zap_add(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE,
|
|
sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) {
|
|
cmn_err(CE_PANIC, "failed to add deflate");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Create the deferred-free bplist object. Turn off compression
|
|
* because sync-to-convergence takes longer if the blocksize
|
|
* keeps changing.
|
|
*/
|
|
spa->spa_sync_bplist_obj = bplist_create(spa->spa_meta_objset,
|
|
1 << 14, tx);
|
|
dmu_object_set_compress(spa->spa_meta_objset, spa->spa_sync_bplist_obj,
|
|
ZIO_COMPRESS_OFF, tx);
|
|
|
|
if (zap_add(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST,
|
|
sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj, tx) != 0) {
|
|
cmn_err(CE_PANIC, "failed to add bplist");
|
|
}
|
|
|
|
/*
|
|
* Create the pool's history object.
|
|
*/
|
|
if (version >= SPA_VERSION_ZPOOL_HISTORY)
|
|
spa_history_create_obj(spa, tx);
|
|
|
|
/*
|
|
* Set pool properties.
|
|
*/
|
|
spa->spa_bootfs = zpool_prop_default_numeric(ZPOOL_PROP_BOOTFS);
|
|
spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION);
|
|
spa->spa_failmode = zpool_prop_default_numeric(ZPOOL_PROP_FAILUREMODE);
|
|
if (props != NULL) {
|
|
spa_configfile_set(spa, props, B_FALSE);
|
|
spa_sync_props(spa, props, CRED(), tx);
|
|
}
|
|
|
|
dmu_tx_commit(tx);
|
|
|
|
spa->spa_sync_on = B_TRUE;
|
|
txg_sync_start(spa->spa_dsl_pool);
|
|
|
|
/*
|
|
* We explicitly wait for the first transaction to complete so that our
|
|
* bean counters are appropriately updated.
|
|
*/
|
|
txg_wait_synced(spa->spa_dsl_pool, txg);
|
|
|
|
spa_config_sync(spa, B_FALSE, B_TRUE);
|
|
|
|
if (version >= SPA_VERSION_ZPOOL_HISTORY && history_str != NULL)
|
|
(void) spa_history_log(spa, history_str, LOG_CMD_POOL_CREATE);
|
|
|
|
spa->spa_minref = refcount_count(&spa->spa_refcount);
|
|
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
return (0);
|
|
}
|
|
|
|
#ifdef sun
|
|
#ifdef _KERNEL
|
|
/*
|
|
* Build a "root" vdev for a top level vdev read in from a rootpool
|
|
* device label.
|
|
*/
|
|
static void
|
|
spa_build_rootpool_config(nvlist_t *config)
|
|
{
|
|
nvlist_t *nvtop, *nvroot;
|
|
uint64_t pgid;
|
|
|
|
/*
|
|
* Add this top-level vdev to the child array.
|
|
*/
|
|
VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvtop)
|
|
== 0);
|
|
VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pgid)
|
|
== 0);
|
|
|
|
/*
|
|
* Put this pool's top-level vdevs into a root vdev.
|
|
*/
|
|
VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
VERIFY(nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT)
|
|
== 0);
|
|
VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) == 0);
|
|
VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, pgid) == 0);
|
|
VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
|
|
&nvtop, 1) == 0);
|
|
|
|
/*
|
|
* Replace the existing vdev_tree with the new root vdev in
|
|
* this pool's configuration (remove the old, add the new).
|
|
*/
|
|
VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot) == 0);
|
|
nvlist_free(nvroot);
|
|
}
|
|
|
|
/*
|
|
* Get the root pool information from the root disk, then import the root pool
|
|
* during the system boot up time.
|
|
*/
|
|
extern int vdev_disk_read_rootlabel(char *, char *, nvlist_t **);
|
|
|
|
int
|
|
spa_check_rootconf(char *devpath, char *devid, nvlist_t **bestconf,
|
|
uint64_t *besttxg)
|
|
{
|
|
nvlist_t *config;
|
|
uint64_t txg;
|
|
int error;
|
|
|
|
if (error = vdev_disk_read_rootlabel(devpath, devid, &config))
|
|
return (error);
|
|
|
|
VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, &txg) == 0);
|
|
|
|
if (bestconf != NULL)
|
|
*bestconf = config;
|
|
else
|
|
nvlist_free(config);
|
|
*besttxg = txg;
|
|
return (0);
|
|
}
|
|
|
|
boolean_t
|
|
spa_rootdev_validate(nvlist_t *nv)
|
|
{
|
|
uint64_t ival;
|
|
|
|
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE, &ival) == 0 ||
|
|
nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, &ival) == 0 ||
|
|
nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, &ival) == 0)
|
|
return (B_FALSE);
|
|
|
|
return (B_TRUE);
|
|
}
|
|
|
|
|
|
/*
|
|
* Given the boot device's physical path or devid, check if the device
|
|
* is in a valid state. If so, return the configuration from the vdev
|
|
* label.
|
|
*/
|
|
int
|
|
spa_get_rootconf(char *devpath, char *devid, nvlist_t **bestconf)
|
|
{
|
|
nvlist_t *conf = NULL;
|
|
uint64_t txg = 0;
|
|
nvlist_t *nvtop, **child;
|
|
char *type;
|
|
char *bootpath = NULL;
|
|
uint_t children, c;
|
|
char *tmp;
|
|
int error;
|
|
|
|
if (devpath && ((tmp = strchr(devpath, ' ')) != NULL))
|
|
*tmp = '\0';
|
|
if (error = spa_check_rootconf(devpath, devid, &conf, &txg)) {
|
|
cmn_err(CE_NOTE, "error reading device label");
|
|
return (error);
|
|
}
|
|
if (txg == 0) {
|
|
cmn_err(CE_NOTE, "this device is detached");
|
|
nvlist_free(conf);
|
|
return (EINVAL);
|
|
}
|
|
|
|
VERIFY(nvlist_lookup_nvlist(conf, ZPOOL_CONFIG_VDEV_TREE,
|
|
&nvtop) == 0);
|
|
VERIFY(nvlist_lookup_string(nvtop, ZPOOL_CONFIG_TYPE, &type) == 0);
|
|
|
|
if (strcmp(type, VDEV_TYPE_DISK) == 0) {
|
|
if (spa_rootdev_validate(nvtop)) {
|
|
goto out;
|
|
} else {
|
|
nvlist_free(conf);
|
|
return (EINVAL);
|
|
}
|
|
}
|
|
|
|
ASSERT(strcmp(type, VDEV_TYPE_MIRROR) == 0);
|
|
|
|
VERIFY(nvlist_lookup_nvlist_array(nvtop, ZPOOL_CONFIG_CHILDREN,
|
|
&child, &children) == 0);
|
|
|
|
/*
|
|
* Go thru vdevs in the mirror to see if the given device
|
|
* has the most recent txg. Only the device with the most
|
|
* recent txg has valid information and should be booted.
|
|
*/
|
|
for (c = 0; c < children; c++) {
|
|
char *cdevid, *cpath;
|
|
uint64_t tmptxg;
|
|
|
|
cpath = NULL;
|
|
cdevid = NULL;
|
|
if (nvlist_lookup_string(child[c], ZPOOL_CONFIG_PHYS_PATH,
|
|
&cpath) != 0 && nvlist_lookup_string(child[c],
|
|
ZPOOL_CONFIG_DEVID, &cdevid) != 0)
|
|
return (EINVAL);
|
|
if ((spa_check_rootconf(cpath, cdevid, NULL,
|
|
&tmptxg) == 0) && (tmptxg > txg)) {
|
|
txg = tmptxg;
|
|
VERIFY(nvlist_lookup_string(child[c],
|
|
ZPOOL_CONFIG_PATH, &bootpath) == 0);
|
|
}
|
|
}
|
|
|
|
/* Does the best device match the one we've booted from? */
|
|
if (bootpath) {
|
|
cmn_err(CE_NOTE, "try booting from '%s'", bootpath);
|
|
return (EINVAL);
|
|
}
|
|
out:
|
|
*bestconf = conf;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Import a root pool.
|
|
*
|
|
* For x86. devpath_list will consist of devid and/or physpath name of
|
|
* the vdev (e.g. "id1,sd@SSEAGATE..." or "/pci@1f,0/ide@d/disk@0,0:a").
|
|
* The GRUB "findroot" command will return the vdev we should boot.
|
|
*
|
|
* For Sparc, devpath_list consists the physpath name of the booting device
|
|
* no matter the rootpool is a single device pool or a mirrored pool.
|
|
* e.g.
|
|
* "/pci@1f,0/ide@d/disk@0,0:a"
|
|
*/
|
|
int
|
|
spa_import_rootpool(char *devpath, char *devid)
|
|
{
|
|
nvlist_t *conf = NULL;
|
|
char *pname;
|
|
int error;
|
|
spa_t *spa;
|
|
|
|
/*
|
|
* Get the vdev pathname and configuation from the most
|
|
* recently updated vdev (highest txg).
|
|
*/
|
|
if (error = spa_get_rootconf(devpath, devid, &conf))
|
|
goto msg_out;
|
|
|
|
/*
|
|
* Add type "root" vdev to the config.
|
|
*/
|
|
spa_build_rootpool_config(conf);
|
|
|
|
VERIFY(nvlist_lookup_string(conf, ZPOOL_CONFIG_POOL_NAME, &pname) == 0);
|
|
|
|
mutex_enter(&spa_namespace_lock);
|
|
if ((spa = spa_lookup(pname)) != NULL) {
|
|
/*
|
|
* Remove the existing root pool from the namespace so that we
|
|
* can replace it with the correct config we just read in.
|
|
*/
|
|
spa_remove(spa);
|
|
}
|
|
|
|
spa = spa_add(pname, NULL);
|
|
spa->spa_is_root = B_TRUE;
|
|
spa->spa_load_verbatim = B_TRUE;
|
|
|
|
VERIFY(nvlist_dup(conf, &spa->spa_config, 0) == 0);
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
nvlist_free(conf);
|
|
return (0);
|
|
|
|
msg_out:
|
|
cmn_err(CE_NOTE, "\n"
|
|
" *************************************************** \n"
|
|
" * This device is not bootable! * \n"
|
|
" * It is either offlined or detached or faulted. * \n"
|
|
" * Please try to boot from a different device. * \n"
|
|
" *************************************************** ");
|
|
|
|
return (error);
|
|
}
|
|
#endif
|
|
#endif /* sun */
|
|
|
|
/*
|
|
* Take a pool and insert it into the namespace as if it had been loaded at
|
|
* boot.
|
|
*/
|
|
int
|
|
spa_import_verbatim(const char *pool, nvlist_t *config, nvlist_t *props)
|
|
{
|
|
spa_t *spa;
|
|
char *altroot = NULL;
|
|
|
|
mutex_enter(&spa_namespace_lock);
|
|
if (spa_lookup(pool) != NULL) {
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (EEXIST);
|
|
}
|
|
|
|
(void) nvlist_lookup_string(props,
|
|
zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot);
|
|
spa = spa_add(pool, altroot);
|
|
|
|
spa->spa_load_verbatim = B_TRUE;
|
|
|
|
VERIFY(nvlist_dup(config, &spa->spa_config, 0) == 0);
|
|
|
|
if (props != NULL)
|
|
spa_configfile_set(spa, props, B_FALSE);
|
|
|
|
spa_config_sync(spa, B_FALSE, B_TRUE);
|
|
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Import a non-root pool into the system.
|
|
*/
|
|
int
|
|
spa_import(const char *pool, nvlist_t *config, nvlist_t *props)
|
|
{
|
|
spa_t *spa;
|
|
char *altroot = NULL;
|
|
int error;
|
|
nvlist_t *nvroot;
|
|
nvlist_t **spares, **l2cache;
|
|
uint_t nspares, nl2cache;
|
|
|
|
/*
|
|
* If a pool with this name exists, return failure.
|
|
*/
|
|
mutex_enter(&spa_namespace_lock);
|
|
if ((spa = spa_lookup(pool)) != NULL) {
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (EEXIST);
|
|
}
|
|
|
|
/*
|
|
* Create and initialize the spa structure.
|
|
*/
|
|
(void) nvlist_lookup_string(props,
|
|
zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot);
|
|
spa = spa_add(pool, altroot);
|
|
spa_activate(spa, spa_mode_global);
|
|
|
|
/*
|
|
* Don't start async tasks until we know everything is healthy.
|
|
*/
|
|
spa_async_suspend(spa);
|
|
|
|
/*
|
|
* Pass off the heavy lifting to spa_load(). Pass TRUE for mosconfig
|
|
* because the user-supplied config is actually the one to trust when
|
|
* doing an import.
|
|
*/
|
|
error = spa_load(spa, config, SPA_LOAD_IMPORT, B_TRUE);
|
|
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
/*
|
|
* Toss any existing sparelist, as it doesn't have any validity
|
|
* anymore, and conflicts with spa_has_spare().
|
|
*/
|
|
if (spa->spa_spares.sav_config) {
|
|
nvlist_free(spa->spa_spares.sav_config);
|
|
spa->spa_spares.sav_config = NULL;
|
|
spa_load_spares(spa);
|
|
}
|
|
if (spa->spa_l2cache.sav_config) {
|
|
nvlist_free(spa->spa_l2cache.sav_config);
|
|
spa->spa_l2cache.sav_config = NULL;
|
|
spa_load_l2cache(spa);
|
|
}
|
|
|
|
VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
|
|
&nvroot) == 0);
|
|
if (error == 0)
|
|
error = spa_validate_aux(spa, nvroot, -1ULL,
|
|
VDEV_ALLOC_SPARE);
|
|
if (error == 0)
|
|
error = spa_validate_aux(spa, nvroot, -1ULL,
|
|
VDEV_ALLOC_L2CACHE);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
|
|
if (props != NULL)
|
|
spa_configfile_set(spa, props, B_FALSE);
|
|
|
|
if (error != 0 || (props && spa_writeable(spa) &&
|
|
(error = spa_prop_set(spa, props)))) {
|
|
spa_unload(spa);
|
|
spa_deactivate(spa);
|
|
spa_remove(spa);
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (error);
|
|
}
|
|
|
|
spa_async_resume(spa);
|
|
|
|
/*
|
|
* Override any spares and level 2 cache devices as specified by
|
|
* the user, as these may have correct device names/devids, etc.
|
|
*/
|
|
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
|
|
&spares, &nspares) == 0) {
|
|
if (spa->spa_spares.sav_config)
|
|
VERIFY(nvlist_remove(spa->spa_spares.sav_config,
|
|
ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0);
|
|
else
|
|
VERIFY(nvlist_alloc(&spa->spa_spares.sav_config,
|
|
NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config,
|
|
ZPOOL_CONFIG_SPARES, spares, nspares) == 0);
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
spa_load_spares(spa);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
spa->spa_spares.sav_sync = B_TRUE;
|
|
}
|
|
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
|
|
&l2cache, &nl2cache) == 0) {
|
|
if (spa->spa_l2cache.sav_config)
|
|
VERIFY(nvlist_remove(spa->spa_l2cache.sav_config,
|
|
ZPOOL_CONFIG_L2CACHE, DATA_TYPE_NVLIST_ARRAY) == 0);
|
|
else
|
|
VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config,
|
|
NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config,
|
|
ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0);
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
spa_load_l2cache(spa);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
spa->spa_l2cache.sav_sync = B_TRUE;
|
|
}
|
|
|
|
if (spa_writeable(spa)) {
|
|
/*
|
|
* Update the config cache to include the newly-imported pool.
|
|
*/
|
|
spa_config_update(spa, SPA_CONFIG_UPDATE_POOL);
|
|
}
|
|
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* This (illegal) pool name is used when temporarily importing a spa_t in order
|
|
* to get the vdev stats associated with the imported devices.
|
|
*/
|
|
#define TRYIMPORT_NAME "$import"
|
|
|
|
nvlist_t *
|
|
spa_tryimport(nvlist_t *tryconfig)
|
|
{
|
|
nvlist_t *config = NULL;
|
|
char *poolname;
|
|
spa_t *spa;
|
|
uint64_t state;
|
|
int error;
|
|
|
|
if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname))
|
|
return (NULL);
|
|
|
|
if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state))
|
|
return (NULL);
|
|
|
|
/*
|
|
* Create and initialize the spa structure.
|
|
*/
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa = spa_add(TRYIMPORT_NAME, NULL);
|
|
spa_activate(spa, FREAD);
|
|
|
|
/*
|
|
* Pass off the heavy lifting to spa_load().
|
|
* Pass TRUE for mosconfig because the user-supplied config
|
|
* is actually the one to trust when doing an import.
|
|
*/
|
|
error = spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE);
|
|
|
|
/*
|
|
* If 'tryconfig' was at least parsable, return the current config.
|
|
*/
|
|
if (spa->spa_root_vdev != NULL) {
|
|
config = spa_config_generate(spa, NULL, -1ULL, B_TRUE);
|
|
VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME,
|
|
poolname) == 0);
|
|
VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE,
|
|
state) == 0);
|
|
VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP,
|
|
spa->spa_uberblock.ub_timestamp) == 0);
|
|
|
|
/*
|
|
* If the bootfs property exists on this pool then we
|
|
* copy it out so that external consumers can tell which
|
|
* pools are bootable.
|
|
*/
|
|
if ((!error || error == EEXIST) && spa->spa_bootfs) {
|
|
char *tmpname = kmem_alloc(MAXPATHLEN, KM_SLEEP);
|
|
|
|
/*
|
|
* We have to play games with the name since the
|
|
* pool was opened as TRYIMPORT_NAME.
|
|
*/
|
|
if (dsl_dsobj_to_dsname(spa_name(spa),
|
|
spa->spa_bootfs, tmpname) == 0) {
|
|
char *cp;
|
|
char *dsname = kmem_alloc(MAXPATHLEN, KM_SLEEP);
|
|
|
|
cp = strchr(tmpname, '/');
|
|
if (cp == NULL) {
|
|
(void) strlcpy(dsname, tmpname,
|
|
MAXPATHLEN);
|
|
} else {
|
|
(void) snprintf(dsname, MAXPATHLEN,
|
|
"%s/%s", poolname, ++cp);
|
|
}
|
|
VERIFY(nvlist_add_string(config,
|
|
ZPOOL_CONFIG_BOOTFS, dsname) == 0);
|
|
kmem_free(dsname, MAXPATHLEN);
|
|
}
|
|
kmem_free(tmpname, MAXPATHLEN);
|
|
}
|
|
|
|
/*
|
|
* Add the list of hot spares and level 2 cache devices.
|
|
*/
|
|
spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
|
|
spa_add_spares(spa, config);
|
|
spa_add_l2cache(spa, config);
|
|
spa_config_exit(spa, SCL_CONFIG, FTAG);
|
|
}
|
|
|
|
spa_unload(spa);
|
|
spa_deactivate(spa);
|
|
spa_remove(spa);
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
return (config);
|
|
}
|
|
|
|
/*
|
|
* Pool export/destroy
|
|
*
|
|
* The act of destroying or exporting a pool is very simple. We make sure there
|
|
* is no more pending I/O and any references to the pool are gone. Then, we
|
|
* update the pool state and sync all the labels to disk, removing the
|
|
* configuration from the cache afterwards. If the 'hardforce' flag is set, then
|
|
* we don't sync the labels or remove the configuration cache.
|
|
*/
|
|
static int
|
|
spa_export_common(char *pool, int new_state, nvlist_t **oldconfig,
|
|
boolean_t force, boolean_t hardforce)
|
|
{
|
|
spa_t *spa;
|
|
|
|
if (oldconfig)
|
|
*oldconfig = NULL;
|
|
|
|
if (!(spa_mode_global & FWRITE))
|
|
return (EROFS);
|
|
|
|
mutex_enter(&spa_namespace_lock);
|
|
if ((spa = spa_lookup(pool)) == NULL) {
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (ENOENT);
|
|
}
|
|
|
|
/*
|
|
* Put a hold on the pool, drop the namespace lock, stop async tasks,
|
|
* reacquire the namespace lock, and see if we can export.
|
|
*/
|
|
spa_open_ref(spa, FTAG);
|
|
mutex_exit(&spa_namespace_lock);
|
|
spa_async_suspend(spa);
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa_close(spa, FTAG);
|
|
|
|
/*
|
|
* The pool will be in core if it's openable,
|
|
* in which case we can modify its state.
|
|
*/
|
|
if (spa->spa_state != POOL_STATE_UNINITIALIZED && spa->spa_sync_on) {
|
|
/*
|
|
* Objsets may be open only because they're dirty, so we
|
|
* have to force it to sync before checking spa_refcnt.
|
|
*/
|
|
txg_wait_synced(spa->spa_dsl_pool, 0);
|
|
|
|
/*
|
|
* A pool cannot be exported or destroyed if there are active
|
|
* references. If we are resetting a pool, allow references by
|
|
* fault injection handlers.
|
|
*/
|
|
if (!spa_refcount_zero(spa) ||
|
|
(spa->spa_inject_ref != 0 &&
|
|
new_state != POOL_STATE_UNINITIALIZED)) {
|
|
spa_async_resume(spa);
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (EBUSY);
|
|
}
|
|
|
|
/*
|
|
* A pool cannot be exported if it has an active shared spare.
|
|
* This is to prevent other pools stealing the active spare
|
|
* from an exported pool. At user's own will, such pool can
|
|
* be forcedly exported.
|
|
*/
|
|
if (!force && new_state == POOL_STATE_EXPORTED &&
|
|
spa_has_active_shared_spare(spa)) {
|
|
spa_async_resume(spa);
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (EXDEV);
|
|
}
|
|
|
|
/*
|
|
* We want this to be reflected on every label,
|
|
* so mark them all dirty. spa_unload() will do the
|
|
* final sync that pushes these changes out.
|
|
*/
|
|
if (new_state != POOL_STATE_UNINITIALIZED && !hardforce) {
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
spa->spa_state = new_state;
|
|
spa->spa_final_txg = spa_last_synced_txg(spa) + 1;
|
|
vdev_config_dirty(spa->spa_root_vdev);
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
}
|
|
}
|
|
|
|
spa_event_notify(spa, NULL, ESC_ZFS_POOL_DESTROY);
|
|
|
|
if (spa->spa_state != POOL_STATE_UNINITIALIZED) {
|
|
spa_unload(spa);
|
|
spa_deactivate(spa);
|
|
}
|
|
|
|
if (oldconfig && spa->spa_config)
|
|
VERIFY(nvlist_dup(spa->spa_config, oldconfig, 0) == 0);
|
|
|
|
if (new_state != POOL_STATE_UNINITIALIZED) {
|
|
if (!hardforce)
|
|
spa_config_sync(spa, B_TRUE, B_TRUE);
|
|
spa_remove(spa);
|
|
}
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Destroy a storage pool.
|
|
*/
|
|
int
|
|
spa_destroy(char *pool)
|
|
{
|
|
return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL,
|
|
B_FALSE, B_FALSE));
|
|
}
|
|
|
|
/*
|
|
* Export a storage pool.
|
|
*/
|
|
int
|
|
spa_export(char *pool, nvlist_t **oldconfig, boolean_t force,
|
|
boolean_t hardforce)
|
|
{
|
|
return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig,
|
|
force, hardforce));
|
|
}
|
|
|
|
/*
|
|
* Similar to spa_export(), this unloads the spa_t without actually removing it
|
|
* from the namespace in any way.
|
|
*/
|
|
int
|
|
spa_reset(char *pool)
|
|
{
|
|
return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL,
|
|
B_FALSE, B_FALSE));
|
|
}
|
|
|
|
/*
|
|
* ==========================================================================
|
|
* Device manipulation
|
|
* ==========================================================================
|
|
*/
|
|
|
|
/*
|
|
* Add a device to a storage pool.
|
|
*/
|
|
int
|
|
spa_vdev_add(spa_t *spa, nvlist_t *nvroot)
|
|
{
|
|
uint64_t txg;
|
|
int error;
|
|
vdev_t *rvd = spa->spa_root_vdev;
|
|
vdev_t *vd, *tvd;
|
|
nvlist_t **spares, **l2cache;
|
|
uint_t nspares, nl2cache;
|
|
|
|
txg = spa_vdev_enter(spa);
|
|
|
|
if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0,
|
|
VDEV_ALLOC_ADD)) != 0)
|
|
return (spa_vdev_exit(spa, NULL, txg, error));
|
|
|
|
spa->spa_pending_vdev = vd; /* spa_vdev_exit() will clear this */
|
|
|
|
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, &spares,
|
|
&nspares) != 0)
|
|
nspares = 0;
|
|
|
|
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, &l2cache,
|
|
&nl2cache) != 0)
|
|
nl2cache = 0;
|
|
|
|
if (vd->vdev_children == 0 && nspares == 0 && nl2cache == 0)
|
|
return (spa_vdev_exit(spa, vd, txg, EINVAL));
|
|
|
|
if (vd->vdev_children != 0 &&
|
|
(error = vdev_create(vd, txg, B_FALSE)) != 0)
|
|
return (spa_vdev_exit(spa, vd, txg, error));
|
|
|
|
/*
|
|
* We must validate the spares and l2cache devices after checking the
|
|
* children. Otherwise, vdev_inuse() will blindly overwrite the spare.
|
|
*/
|
|
if ((error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) != 0)
|
|
return (spa_vdev_exit(spa, vd, txg, error));
|
|
|
|
/*
|
|
* Transfer each new top-level vdev from vd to rvd.
|
|
*/
|
|
for (int c = 0; c < vd->vdev_children; c++) {
|
|
tvd = vd->vdev_child[c];
|
|
vdev_remove_child(vd, tvd);
|
|
tvd->vdev_id = rvd->vdev_children;
|
|
vdev_add_child(rvd, tvd);
|
|
vdev_config_dirty(tvd);
|
|
}
|
|
|
|
if (nspares != 0) {
|
|
spa_set_aux_vdevs(&spa->spa_spares, spares, nspares,
|
|
ZPOOL_CONFIG_SPARES);
|
|
spa_load_spares(spa);
|
|
spa->spa_spares.sav_sync = B_TRUE;
|
|
}
|
|
|
|
if (nl2cache != 0) {
|
|
spa_set_aux_vdevs(&spa->spa_l2cache, l2cache, nl2cache,
|
|
ZPOOL_CONFIG_L2CACHE);
|
|
spa_load_l2cache(spa);
|
|
spa->spa_l2cache.sav_sync = B_TRUE;
|
|
}
|
|
|
|
/*
|
|
* We have to be careful when adding new vdevs to an existing pool.
|
|
* If other threads start allocating from these vdevs before we
|
|
* sync the config cache, and we lose power, then upon reboot we may
|
|
* fail to open the pool because there are DVAs that the config cache
|
|
* can't translate. Therefore, we first add the vdevs without
|
|
* initializing metaslabs; sync the config cache (via spa_vdev_exit());
|
|
* and then let spa_config_update() initialize the new metaslabs.
|
|
*
|
|
* spa_load() checks for added-but-not-initialized vdevs, so that
|
|
* if we lose power at any point in this sequence, the remaining
|
|
* steps will be completed the next time we load the pool.
|
|
*/
|
|
(void) spa_vdev_exit(spa, vd, txg, 0);
|
|
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa_config_update(spa, SPA_CONFIG_UPDATE_POOL);
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Attach a device to a mirror. The arguments are the path to any device
|
|
* in the mirror, and the nvroot for the new device. If the path specifies
|
|
* a device that is not mirrored, we automatically insert the mirror vdev.
|
|
*
|
|
* If 'replacing' is specified, the new device is intended to replace the
|
|
* existing device; in this case the two devices are made into their own
|
|
* mirror using the 'replacing' vdev, which is functionally identical to
|
|
* the mirror vdev (it actually reuses all the same ops) but has a few
|
|
* extra rules: you can't attach to it after it's been created, and upon
|
|
* completion of resilvering, the first disk (the one being replaced)
|
|
* is automatically detached.
|
|
*/
|
|
int
|
|
spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing)
|
|
{
|
|
uint64_t txg, open_txg;
|
|
vdev_t *rvd = spa->spa_root_vdev;
|
|
vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd;
|
|
vdev_ops_t *pvops;
|
|
dmu_tx_t *tx;
|
|
char *oldvdpath, *newvdpath;
|
|
int newvd_isspare;
|
|
int error;
|
|
|
|
txg = spa_vdev_enter(spa);
|
|
|
|
oldvd = spa_lookup_by_guid(spa, guid, B_FALSE);
|
|
|
|
if (oldvd == NULL)
|
|
return (spa_vdev_exit(spa, NULL, txg, ENODEV));
|
|
|
|
if (!oldvd->vdev_ops->vdev_op_leaf)
|
|
return (spa_vdev_exit(spa, NULL, txg, ENOTSUP));
|
|
|
|
pvd = oldvd->vdev_parent;
|
|
|
|
if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0,
|
|
VDEV_ALLOC_ADD)) != 0)
|
|
return (spa_vdev_exit(spa, NULL, txg, EINVAL));
|
|
|
|
if (newrootvd->vdev_children != 1)
|
|
return (spa_vdev_exit(spa, newrootvd, txg, EINVAL));
|
|
|
|
newvd = newrootvd->vdev_child[0];
|
|
|
|
if (!newvd->vdev_ops->vdev_op_leaf)
|
|
return (spa_vdev_exit(spa, newrootvd, txg, EINVAL));
|
|
|
|
if ((error = vdev_create(newrootvd, txg, replacing)) != 0)
|
|
return (spa_vdev_exit(spa, newrootvd, txg, error));
|
|
|
|
/*
|
|
* Spares can't replace logs
|
|
*/
|
|
if (oldvd->vdev_top->vdev_islog && newvd->vdev_isspare)
|
|
return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP));
|
|
|
|
if (!replacing) {
|
|
/*
|
|
* For attach, the only allowable parent is a mirror or the root
|
|
* vdev.
|
|
*/
|
|
if (pvd->vdev_ops != &vdev_mirror_ops &&
|
|
pvd->vdev_ops != &vdev_root_ops)
|
|
return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP));
|
|
|
|
pvops = &vdev_mirror_ops;
|
|
} else {
|
|
/*
|
|
* Active hot spares can only be replaced by inactive hot
|
|
* spares.
|
|
*/
|
|
if (pvd->vdev_ops == &vdev_spare_ops &&
|
|
pvd->vdev_child[1] == oldvd &&
|
|
!spa_has_spare(spa, newvd->vdev_guid))
|
|
return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP));
|
|
|
|
/*
|
|
* If the source is a hot spare, and the parent isn't already a
|
|
* spare, then we want to create a new hot spare. Otherwise, we
|
|
* want to create a replacing vdev. The user is not allowed to
|
|
* attach to a spared vdev child unless the 'isspare' state is
|
|
* the same (spare replaces spare, non-spare replaces
|
|
* non-spare).
|
|
*/
|
|
if (pvd->vdev_ops == &vdev_replacing_ops)
|
|
return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP));
|
|
else if (pvd->vdev_ops == &vdev_spare_ops &&
|
|
newvd->vdev_isspare != oldvd->vdev_isspare)
|
|
return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP));
|
|
else if (pvd->vdev_ops != &vdev_spare_ops &&
|
|
newvd->vdev_isspare)
|
|
pvops = &vdev_spare_ops;
|
|
else
|
|
pvops = &vdev_replacing_ops;
|
|
}
|
|
|
|
/*
|
|
* Compare the new device size with the replaceable/attachable
|
|
* device size.
|
|
*/
|
|
if (newvd->vdev_psize < vdev_get_rsize(oldvd))
|
|
return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW));
|
|
|
|
/*
|
|
* The new device cannot have a higher alignment requirement
|
|
* than the top-level vdev.
|
|
*/
|
|
if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift)
|
|
return (spa_vdev_exit(spa, newrootvd, txg, EDOM));
|
|
|
|
/*
|
|
* If this is an in-place replacement, update oldvd's path and devid
|
|
* to make it distinguishable from newvd, and unopenable from now on.
|
|
*/
|
|
if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) {
|
|
spa_strfree(oldvd->vdev_path);
|
|
oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5,
|
|
KM_SLEEP);
|
|
(void) sprintf(oldvd->vdev_path, "%s/%s",
|
|
newvd->vdev_path, "old");
|
|
if (oldvd->vdev_devid != NULL) {
|
|
spa_strfree(oldvd->vdev_devid);
|
|
oldvd->vdev_devid = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If the parent is not a mirror, or if we're replacing, insert the new
|
|
* mirror/replacing/spare vdev above oldvd.
|
|
*/
|
|
if (pvd->vdev_ops != pvops)
|
|
pvd = vdev_add_parent(oldvd, pvops);
|
|
|
|
ASSERT(pvd->vdev_top->vdev_parent == rvd);
|
|
ASSERT(pvd->vdev_ops == pvops);
|
|
ASSERT(oldvd->vdev_parent == pvd);
|
|
|
|
/*
|
|
* Extract the new device from its root and add it to pvd.
|
|
*/
|
|
vdev_remove_child(newrootvd, newvd);
|
|
newvd->vdev_id = pvd->vdev_children;
|
|
vdev_add_child(pvd, newvd);
|
|
|
|
/*
|
|
* If newvd is smaller than oldvd, but larger than its rsize,
|
|
* the addition of newvd may have decreased our parent's asize.
|
|
*/
|
|
pvd->vdev_asize = MIN(pvd->vdev_asize, newvd->vdev_asize);
|
|
|
|
tvd = newvd->vdev_top;
|
|
ASSERT(pvd->vdev_top == tvd);
|
|
ASSERT(tvd->vdev_parent == rvd);
|
|
|
|
vdev_config_dirty(tvd);
|
|
|
|
/*
|
|
* Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate
|
|
* upward when spa_vdev_exit() calls vdev_dtl_reassess().
|
|
*/
|
|
open_txg = txg + TXG_CONCURRENT_STATES - 1;
|
|
|
|
vdev_dtl_dirty(newvd, DTL_MISSING,
|
|
TXG_INITIAL, open_txg - TXG_INITIAL + 1);
|
|
|
|
if (newvd->vdev_isspare) {
|
|
spa_spare_activate(newvd);
|
|
spa_event_notify(spa, newvd, ESC_ZFS_VDEV_SPARE);
|
|
}
|
|
|
|
oldvdpath = spa_strdup(oldvd->vdev_path);
|
|
newvdpath = spa_strdup(newvd->vdev_path);
|
|
newvd_isspare = newvd->vdev_isspare;
|
|
|
|
/*
|
|
* Mark newvd's DTL dirty in this txg.
|
|
*/
|
|
vdev_dirty(tvd, VDD_DTL, newvd, txg);
|
|
|
|
(void) spa_vdev_exit(spa, newrootvd, open_txg, 0);
|
|
|
|
tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir);
|
|
if (dmu_tx_assign(tx, TXG_WAIT) == 0) {
|
|
spa_history_internal_log(LOG_POOL_VDEV_ATTACH, spa, tx,
|
|
CRED(), "%s vdev=%s %s vdev=%s",
|
|
replacing && newvd_isspare ? "spare in" :
|
|
replacing ? "replace" : "attach", newvdpath,
|
|
replacing ? "for" : "to", oldvdpath);
|
|
dmu_tx_commit(tx);
|
|
} else {
|
|
dmu_tx_abort(tx);
|
|
}
|
|
|
|
spa_strfree(oldvdpath);
|
|
spa_strfree(newvdpath);
|
|
|
|
/*
|
|
* Kick off a resilver to update newvd.
|
|
*/
|
|
VERIFY3U(spa_scrub(spa, POOL_SCRUB_RESILVER), ==, 0);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Detach a device from a mirror or replacing vdev.
|
|
* If 'replace_done' is specified, only detach if the parent
|
|
* is a replacing vdev.
|
|
*/
|
|
int
|
|
spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, int replace_done)
|
|
{
|
|
uint64_t txg;
|
|
int error;
|
|
vdev_t *rvd = spa->spa_root_vdev;
|
|
vdev_t *vd, *pvd, *cvd, *tvd;
|
|
boolean_t unspare = B_FALSE;
|
|
uint64_t unspare_guid;
|
|
size_t len;
|
|
|
|
txg = spa_vdev_enter(spa);
|
|
|
|
vd = spa_lookup_by_guid(spa, guid, B_FALSE);
|
|
|
|
if (vd == NULL)
|
|
return (spa_vdev_exit(spa, NULL, txg, ENODEV));
|
|
|
|
if (!vd->vdev_ops->vdev_op_leaf)
|
|
return (spa_vdev_exit(spa, NULL, txg, ENOTSUP));
|
|
|
|
pvd = vd->vdev_parent;
|
|
|
|
/*
|
|
* If the parent/child relationship is not as expected, don't do it.
|
|
* Consider M(A,R(B,C)) -- that is, a mirror of A with a replacing
|
|
* vdev that's replacing B with C. The user's intent in replacing
|
|
* is to go from M(A,B) to M(A,C). If the user decides to cancel
|
|
* the replace by detaching C, the expected behavior is to end up
|
|
* M(A,B). But suppose that right after deciding to detach C,
|
|
* the replacement of B completes. We would have M(A,C), and then
|
|
* ask to detach C, which would leave us with just A -- not what
|
|
* the user wanted. To prevent this, we make sure that the
|
|
* parent/child relationship hasn't changed -- in this example,
|
|
* that C's parent is still the replacing vdev R.
|
|
*/
|
|
if (pvd->vdev_guid != pguid && pguid != 0)
|
|
return (spa_vdev_exit(spa, NULL, txg, EBUSY));
|
|
|
|
/*
|
|
* If replace_done is specified, only remove this device if it's
|
|
* the first child of a replacing vdev. For the 'spare' vdev, either
|
|
* disk can be removed.
|
|
*/
|
|
if (replace_done) {
|
|
if (pvd->vdev_ops == &vdev_replacing_ops) {
|
|
if (vd->vdev_id != 0)
|
|
return (spa_vdev_exit(spa, NULL, txg, ENOTSUP));
|
|
} else if (pvd->vdev_ops != &vdev_spare_ops) {
|
|
return (spa_vdev_exit(spa, NULL, txg, ENOTSUP));
|
|
}
|
|
}
|
|
|
|
ASSERT(pvd->vdev_ops != &vdev_spare_ops ||
|
|
spa_version(spa) >= SPA_VERSION_SPARES);
|
|
|
|
/*
|
|
* Only mirror, replacing, and spare vdevs support detach.
|
|
*/
|
|
if (pvd->vdev_ops != &vdev_replacing_ops &&
|
|
pvd->vdev_ops != &vdev_mirror_ops &&
|
|
pvd->vdev_ops != &vdev_spare_ops)
|
|
return (spa_vdev_exit(spa, NULL, txg, ENOTSUP));
|
|
|
|
/*
|
|
* If this device has the only valid copy of some data,
|
|
* we cannot safely detach it.
|
|
*/
|
|
if (vdev_dtl_required(vd))
|
|
return (spa_vdev_exit(spa, NULL, txg, EBUSY));
|
|
|
|
ASSERT(pvd->vdev_children >= 2);
|
|
|
|
/*
|
|
* If we are detaching the second disk from a replacing vdev, then
|
|
* check to see if we changed the original vdev's path to have "/old"
|
|
* at the end in spa_vdev_attach(). If so, undo that change now.
|
|
*/
|
|
if (pvd->vdev_ops == &vdev_replacing_ops && vd->vdev_id == 1 &&
|
|
pvd->vdev_child[0]->vdev_path != NULL &&
|
|
pvd->vdev_child[1]->vdev_path != NULL) {
|
|
ASSERT(pvd->vdev_child[1] == vd);
|
|
cvd = pvd->vdev_child[0];
|
|
len = strlen(vd->vdev_path);
|
|
if (strncmp(cvd->vdev_path, vd->vdev_path, len) == 0 &&
|
|
strcmp(cvd->vdev_path + len, "/old") == 0) {
|
|
spa_strfree(cvd->vdev_path);
|
|
cvd->vdev_path = spa_strdup(vd->vdev_path);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we are detaching the original disk from a spare, then it implies
|
|
* that the spare should become a real disk, and be removed from the
|
|
* active spare list for the pool.
|
|
*/
|
|
if (pvd->vdev_ops == &vdev_spare_ops &&
|
|
vd->vdev_id == 0 && pvd->vdev_child[1]->vdev_isspare)
|
|
unspare = B_TRUE;
|
|
|
|
/*
|
|
* Erase the disk labels so the disk can be used for other things.
|
|
* This must be done after all other error cases are handled,
|
|
* but before we disembowel vd (so we can still do I/O to it).
|
|
* But if we can't do it, don't treat the error as fatal --
|
|
* it may be that the unwritability of the disk is the reason
|
|
* it's being detached!
|
|
*/
|
|
error = vdev_label_init(vd, 0, VDEV_LABEL_REMOVE);
|
|
|
|
/*
|
|
* Remove vd from its parent and compact the parent's children.
|
|
*/
|
|
vdev_remove_child(pvd, vd);
|
|
vdev_compact_children(pvd);
|
|
|
|
/*
|
|
* Remember one of the remaining children so we can get tvd below.
|
|
*/
|
|
cvd = pvd->vdev_child[0];
|
|
|
|
/*
|
|
* If we need to remove the remaining child from the list of hot spares,
|
|
* do it now, marking the vdev as no longer a spare in the process.
|
|
* We must do this before vdev_remove_parent(), because that can
|
|
* change the GUID if it creates a new toplevel GUID. For a similar
|
|
* reason, we must remove the spare now, in the same txg as the detach;
|
|
* otherwise someone could attach a new sibling, change the GUID, and
|
|
* the subsequent attempt to spa_vdev_remove(unspare_guid) would fail.
|
|
*/
|
|
if (unspare) {
|
|
ASSERT(cvd->vdev_isspare);
|
|
spa_spare_remove(cvd);
|
|
unspare_guid = cvd->vdev_guid;
|
|
(void) spa_vdev_remove(spa, unspare_guid, B_TRUE);
|
|
}
|
|
|
|
/*
|
|
* If the parent mirror/replacing vdev only has one child,
|
|
* the parent is no longer needed. Remove it from the tree.
|
|
*/
|
|
if (pvd->vdev_children == 1)
|
|
vdev_remove_parent(cvd);
|
|
|
|
/*
|
|
* We don't set tvd until now because the parent we just removed
|
|
* may have been the previous top-level vdev.
|
|
*/
|
|
tvd = cvd->vdev_top;
|
|
ASSERT(tvd->vdev_parent == rvd);
|
|
|
|
/*
|
|
* Reevaluate the parent vdev state.
|
|
*/
|
|
vdev_propagate_state(cvd);
|
|
|
|
/*
|
|
* If the device we just detached was smaller than the others, it may be
|
|
* possible to add metaslabs (i.e. grow the pool). vdev_metaslab_init()
|
|
* can't fail because the existing metaslabs are already in core, so
|
|
* there's nothing to read from disk.
|
|
*/
|
|
VERIFY(vdev_metaslab_init(tvd, txg) == 0);
|
|
|
|
vdev_config_dirty(tvd);
|
|
|
|
/*
|
|
* Mark vd's DTL as dirty in this txg. vdev_dtl_sync() will see that
|
|
* vd->vdev_detached is set and free vd's DTL object in syncing context.
|
|
* But first make sure we're not on any *other* txg's DTL list, to
|
|
* prevent vd from being accessed after it's freed.
|
|
*/
|
|
for (int t = 0; t < TXG_SIZE; t++)
|
|
(void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t);
|
|
vd->vdev_detached = B_TRUE;
|
|
vdev_dirty(tvd, VDD_DTL, vd, txg);
|
|
|
|
spa_event_notify(spa, vd, ESC_ZFS_VDEV_REMOVE);
|
|
|
|
error = spa_vdev_exit(spa, vd, txg, 0);
|
|
|
|
/*
|
|
* If this was the removal of the original device in a hot spare vdev,
|
|
* then we want to go through and remove the device from the hot spare
|
|
* list of every other pool.
|
|
*/
|
|
if (unspare) {
|
|
spa_t *myspa = spa;
|
|
spa = NULL;
|
|
mutex_enter(&spa_namespace_lock);
|
|
while ((spa = spa_next(spa)) != NULL) {
|
|
if (spa->spa_state != POOL_STATE_ACTIVE)
|
|
continue;
|
|
if (spa == myspa)
|
|
continue;
|
|
spa_open_ref(spa, FTAG);
|
|
mutex_exit(&spa_namespace_lock);
|
|
(void) spa_vdev_remove(spa, unspare_guid, B_TRUE);
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
mutex_exit(&spa_namespace_lock);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
static nvlist_t *
|
|
spa_nvlist_lookup_by_guid(nvlist_t **nvpp, int count, uint64_t target_guid)
|
|
{
|
|
for (int i = 0; i < count; i++) {
|
|
uint64_t guid;
|
|
|
|
VERIFY(nvlist_lookup_uint64(nvpp[i], ZPOOL_CONFIG_GUID,
|
|
&guid) == 0);
|
|
|
|
if (guid == target_guid)
|
|
return (nvpp[i]);
|
|
}
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
static void
|
|
spa_vdev_remove_aux(nvlist_t *config, char *name, nvlist_t **dev, int count,
|
|
nvlist_t *dev_to_remove)
|
|
{
|
|
nvlist_t **newdev = NULL;
|
|
|
|
if (count > 1)
|
|
newdev = kmem_alloc((count - 1) * sizeof (void *), KM_SLEEP);
|
|
|
|
for (int i = 0, j = 0; i < count; i++) {
|
|
if (dev[i] == dev_to_remove)
|
|
continue;
|
|
VERIFY(nvlist_dup(dev[i], &newdev[j++], KM_SLEEP) == 0);
|
|
}
|
|
|
|
VERIFY(nvlist_remove(config, name, DATA_TYPE_NVLIST_ARRAY) == 0);
|
|
VERIFY(nvlist_add_nvlist_array(config, name, newdev, count - 1) == 0);
|
|
|
|
for (int i = 0; i < count - 1; i++)
|
|
nvlist_free(newdev[i]);
|
|
|
|
if (count > 1)
|
|
kmem_free(newdev, (count - 1) * sizeof (void *));
|
|
}
|
|
|
|
/*
|
|
* Remove a device from the pool. Currently, this supports removing only hot
|
|
* spares and level 2 ARC devices.
|
|
*/
|
|
int
|
|
spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare)
|
|
{
|
|
vdev_t *vd;
|
|
nvlist_t **spares, **l2cache, *nv;
|
|
uint_t nspares, nl2cache;
|
|
uint64_t txg = 0;
|
|
int error = 0;
|
|
boolean_t locked = MUTEX_HELD(&spa_namespace_lock);
|
|
|
|
if (!locked)
|
|
txg = spa_vdev_enter(spa);
|
|
|
|
vd = spa_lookup_by_guid(spa, guid, B_FALSE);
|
|
|
|
if (spa->spa_spares.sav_vdevs != NULL &&
|
|
nvlist_lookup_nvlist_array(spa->spa_spares.sav_config,
|
|
ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0 &&
|
|
(nv = spa_nvlist_lookup_by_guid(spares, nspares, guid)) != NULL) {
|
|
/*
|
|
* Only remove the hot spare if it's not currently in use
|
|
* in this pool.
|
|
*/
|
|
if (vd == NULL || unspare) {
|
|
spa_vdev_remove_aux(spa->spa_spares.sav_config,
|
|
ZPOOL_CONFIG_SPARES, spares, nspares, nv);
|
|
spa_load_spares(spa);
|
|
spa->spa_spares.sav_sync = B_TRUE;
|
|
} else {
|
|
error = EBUSY;
|
|
}
|
|
} else if (spa->spa_l2cache.sav_vdevs != NULL &&
|
|
nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config,
|
|
ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0 &&
|
|
(nv = spa_nvlist_lookup_by_guid(l2cache, nl2cache, guid)) != NULL) {
|
|
/*
|
|
* Cache devices can always be removed.
|
|
*/
|
|
spa_vdev_remove_aux(spa->spa_l2cache.sav_config,
|
|
ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache, nv);
|
|
spa_load_l2cache(spa);
|
|
spa->spa_l2cache.sav_sync = B_TRUE;
|
|
} else if (vd != NULL) {
|
|
/*
|
|
* Normal vdevs cannot be removed (yet).
|
|
*/
|
|
error = ENOTSUP;
|
|
} else {
|
|
/*
|
|
* There is no vdev of any kind with the specified guid.
|
|
*/
|
|
error = ENOENT;
|
|
}
|
|
|
|
if (!locked)
|
|
return (spa_vdev_exit(spa, NULL, txg, error));
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Find any device that's done replacing, or a vdev marked 'unspare' that's
|
|
* current spared, so we can detach it.
|
|
*/
|
|
static vdev_t *
|
|
spa_vdev_resilver_done_hunt(vdev_t *vd)
|
|
{
|
|
vdev_t *newvd, *oldvd;
|
|
int c;
|
|
|
|
for (c = 0; c < vd->vdev_children; c++) {
|
|
oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]);
|
|
if (oldvd != NULL)
|
|
return (oldvd);
|
|
}
|
|
|
|
/*
|
|
* Check for a completed replacement.
|
|
*/
|
|
if (vd->vdev_ops == &vdev_replacing_ops && vd->vdev_children == 2) {
|
|
oldvd = vd->vdev_child[0];
|
|
newvd = vd->vdev_child[1];
|
|
|
|
if (vdev_dtl_empty(newvd, DTL_MISSING) &&
|
|
!vdev_dtl_required(oldvd))
|
|
return (oldvd);
|
|
}
|
|
|
|
/*
|
|
* Check for a completed resilver with the 'unspare' flag set.
|
|
*/
|
|
if (vd->vdev_ops == &vdev_spare_ops && vd->vdev_children == 2) {
|
|
newvd = vd->vdev_child[0];
|
|
oldvd = vd->vdev_child[1];
|
|
|
|
if (newvd->vdev_unspare &&
|
|
vdev_dtl_empty(newvd, DTL_MISSING) &&
|
|
!vdev_dtl_required(oldvd)) {
|
|
newvd->vdev_unspare = 0;
|
|
return (oldvd);
|
|
}
|
|
}
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
static void
|
|
spa_vdev_resilver_done(spa_t *spa)
|
|
{
|
|
vdev_t *vd, *pvd, *ppvd;
|
|
uint64_t guid, sguid, pguid, ppguid;
|
|
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
|
|
while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) {
|
|
pvd = vd->vdev_parent;
|
|
ppvd = pvd->vdev_parent;
|
|
guid = vd->vdev_guid;
|
|
pguid = pvd->vdev_guid;
|
|
ppguid = ppvd->vdev_guid;
|
|
sguid = 0;
|
|
/*
|
|
* If we have just finished replacing a hot spared device, then
|
|
* we need to detach the parent's first child (the original hot
|
|
* spare) as well.
|
|
*/
|
|
if (ppvd->vdev_ops == &vdev_spare_ops && pvd->vdev_id == 0) {
|
|
ASSERT(pvd->vdev_ops == &vdev_replacing_ops);
|
|
ASSERT(ppvd->vdev_children == 2);
|
|
sguid = ppvd->vdev_child[1]->vdev_guid;
|
|
}
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
if (spa_vdev_detach(spa, guid, pguid, B_TRUE) != 0)
|
|
return;
|
|
if (sguid && spa_vdev_detach(spa, sguid, ppguid, B_TRUE) != 0)
|
|
return;
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
}
|
|
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
}
|
|
|
|
/*
|
|
* Update the stored path or FRU for this vdev. Dirty the vdev configuration,
|
|
* relying on spa_vdev_enter/exit() to synchronize the labels and cache.
|
|
*/
|
|
int
|
|
spa_vdev_set_common(spa_t *spa, uint64_t guid, const char *value,
|
|
boolean_t ispath)
|
|
{
|
|
vdev_t *vd;
|
|
uint64_t txg;
|
|
|
|
txg = spa_vdev_enter(spa);
|
|
|
|
if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL)
|
|
return (spa_vdev_exit(spa, NULL, txg, ENOENT));
|
|
|
|
if (!vd->vdev_ops->vdev_op_leaf)
|
|
return (spa_vdev_exit(spa, NULL, txg, ENOTSUP));
|
|
|
|
if (ispath) {
|
|
spa_strfree(vd->vdev_path);
|
|
vd->vdev_path = spa_strdup(value);
|
|
} else {
|
|
if (vd->vdev_fru != NULL)
|
|
spa_strfree(vd->vdev_fru);
|
|
vd->vdev_fru = spa_strdup(value);
|
|
}
|
|
|
|
vdev_config_dirty(vd->vdev_top);
|
|
|
|
return (spa_vdev_exit(spa, NULL, txg, 0));
|
|
}
|
|
|
|
int
|
|
spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath)
|
|
{
|
|
return (spa_vdev_set_common(spa, guid, newpath, B_TRUE));
|
|
}
|
|
|
|
int
|
|
spa_vdev_setfru(spa_t *spa, uint64_t guid, const char *newfru)
|
|
{
|
|
return (spa_vdev_set_common(spa, guid, newfru, B_FALSE));
|
|
}
|
|
|
|
/*
|
|
* ==========================================================================
|
|
* SPA Scrubbing
|
|
* ==========================================================================
|
|
*/
|
|
|
|
int
|
|
spa_scrub(spa_t *spa, pool_scrub_type_t type)
|
|
{
|
|
ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0);
|
|
|
|
if ((uint_t)type >= POOL_SCRUB_TYPES)
|
|
return (ENOTSUP);
|
|
|
|
/*
|
|
* If a resilver was requested, but there is no DTL on a
|
|
* writeable leaf device, we have nothing to do.
|
|
*/
|
|
if (type == POOL_SCRUB_RESILVER &&
|
|
!vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) {
|
|
spa_async_request(spa, SPA_ASYNC_RESILVER_DONE);
|
|
return (0);
|
|
}
|
|
|
|
if (type == POOL_SCRUB_EVERYTHING &&
|
|
spa->spa_dsl_pool->dp_scrub_func != SCRUB_FUNC_NONE &&
|
|
spa->spa_dsl_pool->dp_scrub_isresilver)
|
|
return (EBUSY);
|
|
|
|
if (type == POOL_SCRUB_EVERYTHING || type == POOL_SCRUB_RESILVER) {
|
|
return (dsl_pool_scrub_clean(spa->spa_dsl_pool));
|
|
} else if (type == POOL_SCRUB_NONE) {
|
|
return (dsl_pool_scrub_cancel(spa->spa_dsl_pool));
|
|
} else {
|
|
return (EINVAL);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ==========================================================================
|
|
* SPA async task processing
|
|
* ==========================================================================
|
|
*/
|
|
|
|
static void
|
|
spa_async_remove(spa_t *spa, vdev_t *vd)
|
|
{
|
|
if (vd->vdev_remove_wanted) {
|
|
vd->vdev_remove_wanted = 0;
|
|
vdev_set_state(vd, B_FALSE, VDEV_STATE_REMOVED, VDEV_AUX_NONE);
|
|
|
|
/*
|
|
* We want to clear the stats, but we don't want to do a full
|
|
* vdev_clear() as that will cause us to throw away
|
|
* degraded/faulted state as well as attempt to reopen the
|
|
* device, all of which is a waste.
|
|
*/
|
|
vd->vdev_stat.vs_read_errors = 0;
|
|
vd->vdev_stat.vs_write_errors = 0;
|
|
vd->vdev_stat.vs_checksum_errors = 0;
|
|
|
|
vdev_state_dirty(vd->vdev_top);
|
|
}
|
|
|
|
for (int c = 0; c < vd->vdev_children; c++)
|
|
spa_async_remove(spa, vd->vdev_child[c]);
|
|
}
|
|
|
|
static void
|
|
spa_async_probe(spa_t *spa, vdev_t *vd)
|
|
{
|
|
if (vd->vdev_probe_wanted) {
|
|
vd->vdev_probe_wanted = 0;
|
|
vdev_reopen(vd); /* vdev_open() does the actual probe */
|
|
}
|
|
|
|
for (int c = 0; c < vd->vdev_children; c++)
|
|
spa_async_probe(spa, vd->vdev_child[c]);
|
|
}
|
|
|
|
static void
|
|
spa_async_thread(void *arg)
|
|
{
|
|
spa_t *spa = arg;
|
|
int tasks;
|
|
|
|
ASSERT(spa->spa_sync_on);
|
|
|
|
mutex_enter(&spa->spa_async_lock);
|
|
tasks = spa->spa_async_tasks;
|
|
spa->spa_async_tasks = 0;
|
|
mutex_exit(&spa->spa_async_lock);
|
|
|
|
/*
|
|
* See if the config needs to be updated.
|
|
*/
|
|
if (tasks & SPA_ASYNC_CONFIG_UPDATE) {
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa_config_update(spa, SPA_CONFIG_UPDATE_POOL);
|
|
mutex_exit(&spa_namespace_lock);
|
|
}
|
|
|
|
/*
|
|
* See if any devices need to be marked REMOVED.
|
|
*/
|
|
if (tasks & SPA_ASYNC_REMOVE) {
|
|
spa_vdev_state_enter(spa);
|
|
spa_async_remove(spa, spa->spa_root_vdev);
|
|
for (int i = 0; i < spa->spa_l2cache.sav_count; i++)
|
|
spa_async_remove(spa, spa->spa_l2cache.sav_vdevs[i]);
|
|
for (int i = 0; i < spa->spa_spares.sav_count; i++)
|
|
spa_async_remove(spa, spa->spa_spares.sav_vdevs[i]);
|
|
(void) spa_vdev_state_exit(spa, NULL, 0);
|
|
}
|
|
|
|
/*
|
|
* See if any devices need to be probed.
|
|
*/
|
|
if (tasks & SPA_ASYNC_PROBE) {
|
|
spa_vdev_state_enter(spa);
|
|
spa_async_probe(spa, spa->spa_root_vdev);
|
|
(void) spa_vdev_state_exit(spa, NULL, 0);
|
|
}
|
|
|
|
/*
|
|
* If any devices are done replacing, detach them.
|
|
*/
|
|
if (tasks & SPA_ASYNC_RESILVER_DONE)
|
|
spa_vdev_resilver_done(spa);
|
|
|
|
/*
|
|
* Kick off a resilver.
|
|
*/
|
|
if (tasks & SPA_ASYNC_RESILVER)
|
|
VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER) == 0);
|
|
|
|
/*
|
|
* Let the world know that we're done.
|
|
*/
|
|
mutex_enter(&spa->spa_async_lock);
|
|
spa->spa_async_thread = NULL;
|
|
cv_broadcast(&spa->spa_async_cv);
|
|
mutex_exit(&spa->spa_async_lock);
|
|
thread_exit();
|
|
}
|
|
|
|
void
|
|
spa_async_suspend(spa_t *spa)
|
|
{
|
|
mutex_enter(&spa->spa_async_lock);
|
|
spa->spa_async_suspended++;
|
|
while (spa->spa_async_thread != NULL)
|
|
cv_wait(&spa->spa_async_cv, &spa->spa_async_lock);
|
|
mutex_exit(&spa->spa_async_lock);
|
|
}
|
|
|
|
void
|
|
spa_async_resume(spa_t *spa)
|
|
{
|
|
mutex_enter(&spa->spa_async_lock);
|
|
ASSERT(spa->spa_async_suspended != 0);
|
|
spa->spa_async_suspended--;
|
|
mutex_exit(&spa->spa_async_lock);
|
|
}
|
|
|
|
static void
|
|
spa_async_dispatch(spa_t *spa)
|
|
{
|
|
mutex_enter(&spa->spa_async_lock);
|
|
if (spa->spa_async_tasks && !spa->spa_async_suspended &&
|
|
spa->spa_async_thread == NULL &&
|
|
rootdir != NULL && !vn_is_readonly(rootdir))
|
|
spa->spa_async_thread = thread_create(NULL, 0,
|
|
spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri);
|
|
mutex_exit(&spa->spa_async_lock);
|
|
}
|
|
|
|
void
|
|
spa_async_request(spa_t *spa, int task)
|
|
{
|
|
mutex_enter(&spa->spa_async_lock);
|
|
spa->spa_async_tasks |= task;
|
|
mutex_exit(&spa->spa_async_lock);
|
|
}
|
|
|
|
/*
|
|
* ==========================================================================
|
|
* SPA syncing routines
|
|
* ==========================================================================
|
|
*/
|
|
|
|
static void
|
|
spa_sync_deferred_frees(spa_t *spa, uint64_t txg)
|
|
{
|
|
bplist_t *bpl = &spa->spa_sync_bplist;
|
|
dmu_tx_t *tx;
|
|
blkptr_t blk;
|
|
uint64_t itor = 0;
|
|
zio_t *zio;
|
|
int error;
|
|
uint8_t c = 1;
|
|
|
|
zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL);
|
|
|
|
while (bplist_iterate(bpl, &itor, &blk) == 0) {
|
|
ASSERT(blk.blk_birth < txg);
|
|
zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL,
|
|
ZIO_FLAG_MUSTSUCCEED));
|
|
}
|
|
|
|
error = zio_wait(zio);
|
|
ASSERT3U(error, ==, 0);
|
|
|
|
tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg);
|
|
bplist_vacate(bpl, tx);
|
|
|
|
/*
|
|
* Pre-dirty the first block so we sync to convergence faster.
|
|
* (Usually only the first block is needed.)
|
|
*/
|
|
dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx);
|
|
dmu_tx_commit(tx);
|
|
}
|
|
|
|
static void
|
|
spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx)
|
|
{
|
|
char *packed = NULL;
|
|
size_t bufsize;
|
|
size_t nvsize = 0;
|
|
dmu_buf_t *db;
|
|
|
|
VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0);
|
|
|
|
/*
|
|
* Write full (SPA_CONFIG_BLOCKSIZE) blocks of configuration
|
|
* information. This avoids the dbuf_will_dirty() path and
|
|
* saves us a pre-read to get data we don't actually care about.
|
|
*/
|
|
bufsize = P2ROUNDUP(nvsize, SPA_CONFIG_BLOCKSIZE);
|
|
packed = kmem_alloc(bufsize, KM_SLEEP);
|
|
|
|
VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR,
|
|
KM_SLEEP) == 0);
|
|
bzero(packed + nvsize, bufsize - nvsize);
|
|
|
|
dmu_write(spa->spa_meta_objset, obj, 0, bufsize, packed, tx);
|
|
|
|
kmem_free(packed, bufsize);
|
|
|
|
VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db));
|
|
dmu_buf_will_dirty(db, tx);
|
|
*(uint64_t *)db->db_data = nvsize;
|
|
dmu_buf_rele(db, FTAG);
|
|
}
|
|
|
|
static void
|
|
spa_sync_aux_dev(spa_t *spa, spa_aux_vdev_t *sav, dmu_tx_t *tx,
|
|
const char *config, const char *entry)
|
|
{
|
|
nvlist_t *nvroot;
|
|
nvlist_t **list;
|
|
int i;
|
|
|
|
if (!sav->sav_sync)
|
|
return;
|
|
|
|
/*
|
|
* Update the MOS nvlist describing the list of available devices.
|
|
* spa_validate_aux() will have already made sure this nvlist is
|
|
* valid and the vdevs are labeled appropriately.
|
|
*/
|
|
if (sav->sav_object == 0) {
|
|
sav->sav_object = dmu_object_alloc(spa->spa_meta_objset,
|
|
DMU_OT_PACKED_NVLIST, 1 << 14, DMU_OT_PACKED_NVLIST_SIZE,
|
|
sizeof (uint64_t), tx);
|
|
VERIFY(zap_update(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, entry, sizeof (uint64_t), 1,
|
|
&sav->sav_object, tx) == 0);
|
|
}
|
|
|
|
VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
if (sav->sav_count == 0) {
|
|
VERIFY(nvlist_add_nvlist_array(nvroot, config, NULL, 0) == 0);
|
|
} else {
|
|
list = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP);
|
|
for (i = 0; i < sav->sav_count; i++)
|
|
list[i] = vdev_config_generate(spa, sav->sav_vdevs[i],
|
|
B_FALSE, B_FALSE, B_TRUE);
|
|
VERIFY(nvlist_add_nvlist_array(nvroot, config, list,
|
|
sav->sav_count) == 0);
|
|
for (i = 0; i < sav->sav_count; i++)
|
|
nvlist_free(list[i]);
|
|
kmem_free(list, sav->sav_count * sizeof (void *));
|
|
}
|
|
|
|
spa_sync_nvlist(spa, sav->sav_object, nvroot, tx);
|
|
nvlist_free(nvroot);
|
|
|
|
sav->sav_sync = B_FALSE;
|
|
}
|
|
|
|
static void
|
|
spa_sync_config_object(spa_t *spa, dmu_tx_t *tx)
|
|
{
|
|
nvlist_t *config;
|
|
|
|
if (list_is_empty(&spa->spa_config_dirty_list))
|
|
return;
|
|
|
|
spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
|
|
|
|
config = spa_config_generate(spa, spa->spa_root_vdev,
|
|
dmu_tx_get_txg(tx), B_FALSE);
|
|
|
|
spa_config_exit(spa, SCL_STATE, FTAG);
|
|
|
|
if (spa->spa_config_syncing)
|
|
nvlist_free(spa->spa_config_syncing);
|
|
spa->spa_config_syncing = config;
|
|
|
|
spa_sync_nvlist(spa, spa->spa_config_object, config, tx);
|
|
}
|
|
|
|
/*
|
|
* Set zpool properties.
|
|
*/
|
|
static void
|
|
spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx)
|
|
{
|
|
spa_t *spa = arg1;
|
|
objset_t *mos = spa->spa_meta_objset;
|
|
nvlist_t *nvp = arg2;
|
|
nvpair_t *elem;
|
|
uint64_t intval;
|
|
char *strval;
|
|
zpool_prop_t prop;
|
|
const char *propname;
|
|
zprop_type_t proptype;
|
|
|
|
mutex_enter(&spa->spa_props_lock);
|
|
|
|
elem = NULL;
|
|
while ((elem = nvlist_next_nvpair(nvp, elem))) {
|
|
switch (prop = zpool_name_to_prop(nvpair_name(elem))) {
|
|
case ZPOOL_PROP_VERSION:
|
|
/*
|
|
* Only set version for non-zpool-creation cases
|
|
* (set/import). spa_create() needs special care
|
|
* for version setting.
|
|
*/
|
|
if (tx->tx_txg != TXG_INITIAL) {
|
|
VERIFY(nvpair_value_uint64(elem,
|
|
&intval) == 0);
|
|
ASSERT(intval <= SPA_VERSION);
|
|
ASSERT(intval >= spa_version(spa));
|
|
spa->spa_uberblock.ub_version = intval;
|
|
vdev_config_dirty(spa->spa_root_vdev);
|
|
}
|
|
break;
|
|
|
|
case ZPOOL_PROP_ALTROOT:
|
|
/*
|
|
* 'altroot' is a non-persistent property. It should
|
|
* have been set temporarily at creation or import time.
|
|
*/
|
|
ASSERT(spa->spa_root != NULL);
|
|
break;
|
|
|
|
case ZPOOL_PROP_CACHEFILE:
|
|
/*
|
|
* 'cachefile' is also a non-persisitent property.
|
|
*/
|
|
break;
|
|
default:
|
|
/*
|
|
* Set pool property values in the poolprops mos object.
|
|
*/
|
|
if (spa->spa_pool_props_object == 0) {
|
|
objset_t *mos = spa->spa_meta_objset;
|
|
|
|
VERIFY((spa->spa_pool_props_object =
|
|
zap_create(mos, DMU_OT_POOL_PROPS,
|
|
DMU_OT_NONE, 0, tx)) > 0);
|
|
|
|
VERIFY(zap_update(mos,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_PROPS,
|
|
8, 1, &spa->spa_pool_props_object, tx)
|
|
== 0);
|
|
}
|
|
|
|
/* normalize the property name */
|
|
propname = zpool_prop_to_name(prop);
|
|
proptype = zpool_prop_get_type(prop);
|
|
|
|
if (nvpair_type(elem) == DATA_TYPE_STRING) {
|
|
ASSERT(proptype == PROP_TYPE_STRING);
|
|
VERIFY(nvpair_value_string(elem, &strval) == 0);
|
|
VERIFY(zap_update(mos,
|
|
spa->spa_pool_props_object, propname,
|
|
1, strlen(strval) + 1, strval, tx) == 0);
|
|
|
|
} else if (nvpair_type(elem) == DATA_TYPE_UINT64) {
|
|
VERIFY(nvpair_value_uint64(elem, &intval) == 0);
|
|
|
|
if (proptype == PROP_TYPE_INDEX) {
|
|
const char *unused;
|
|
VERIFY(zpool_prop_index_to_string(
|
|
prop, intval, &unused) == 0);
|
|
}
|
|
VERIFY(zap_update(mos,
|
|
spa->spa_pool_props_object, propname,
|
|
8, 1, &intval, tx) == 0);
|
|
} else {
|
|
ASSERT(0); /* not allowed */
|
|
}
|
|
|
|
switch (prop) {
|
|
case ZPOOL_PROP_DELEGATION:
|
|
spa->spa_delegation = intval;
|
|
break;
|
|
case ZPOOL_PROP_BOOTFS:
|
|
spa->spa_bootfs = intval;
|
|
break;
|
|
case ZPOOL_PROP_FAILUREMODE:
|
|
spa->spa_failmode = intval;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* log internal history if this is not a zpool create */
|
|
if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY &&
|
|
tx->tx_txg != TXG_INITIAL) {
|
|
spa_history_internal_log(LOG_POOL_PROPSET,
|
|
spa, tx, cr, "%s %lld %s",
|
|
nvpair_name(elem), intval, spa_name(spa));
|
|
}
|
|
}
|
|
|
|
mutex_exit(&spa->spa_props_lock);
|
|
}
|
|
|
|
/*
|
|
* Sync the specified transaction group. New blocks may be dirtied as
|
|
* part of the process, so we iterate until it converges.
|
|
*/
|
|
void
|
|
spa_sync(spa_t *spa, uint64_t txg)
|
|
{
|
|
dsl_pool_t *dp = spa->spa_dsl_pool;
|
|
objset_t *mos = spa->spa_meta_objset;
|
|
bplist_t *bpl = &spa->spa_sync_bplist;
|
|
vdev_t *rvd = spa->spa_root_vdev;
|
|
vdev_t *vd;
|
|
dmu_tx_t *tx;
|
|
int dirty_vdevs;
|
|
int error;
|
|
|
|
/*
|
|
* Lock out configuration changes.
|
|
*/
|
|
spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
|
|
|
|
spa->spa_syncing_txg = txg;
|
|
spa->spa_sync_pass = 0;
|
|
|
|
/*
|
|
* If there are any pending vdev state changes, convert them
|
|
* into config changes that go out with this transaction group.
|
|
*/
|
|
spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
|
|
while (list_head(&spa->spa_state_dirty_list) != NULL) {
|
|
/*
|
|
* We need the write lock here because, for aux vdevs,
|
|
* calling vdev_config_dirty() modifies sav_config.
|
|
* This is ugly and will become unnecessary when we
|
|
* eliminate the aux vdev wart by integrating all vdevs
|
|
* into the root vdev tree.
|
|
*/
|
|
spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG);
|
|
spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_WRITER);
|
|
while ((vd = list_head(&spa->spa_state_dirty_list)) != NULL) {
|
|
vdev_state_clean(vd);
|
|
vdev_config_dirty(vd);
|
|
}
|
|
spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG);
|
|
spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER);
|
|
}
|
|
spa_config_exit(spa, SCL_STATE, FTAG);
|
|
|
|
VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj));
|
|
|
|
tx = dmu_tx_create_assigned(dp, txg);
|
|
|
|
/*
|
|
* If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg,
|
|
* set spa_deflate if we have no raid-z vdevs.
|
|
*/
|
|
if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE &&
|
|
spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) {
|
|
int i;
|
|
|
|
for (i = 0; i < rvd->vdev_children; i++) {
|
|
vd = rvd->vdev_child[i];
|
|
if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE)
|
|
break;
|
|
}
|
|
if (i == rvd->vdev_children) {
|
|
spa->spa_deflate = TRUE;
|
|
VERIFY(0 == zap_add(spa->spa_meta_objset,
|
|
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE,
|
|
sizeof (uint64_t), 1, &spa->spa_deflate, tx));
|
|
}
|
|
}
|
|
|
|
if (spa->spa_ubsync.ub_version < SPA_VERSION_ORIGIN &&
|
|
spa->spa_uberblock.ub_version >= SPA_VERSION_ORIGIN) {
|
|
dsl_pool_create_origin(dp, tx);
|
|
|
|
/* Keeping the origin open increases spa_minref */
|
|
spa->spa_minref += 3;
|
|
}
|
|
|
|
if (spa->spa_ubsync.ub_version < SPA_VERSION_NEXT_CLONES &&
|
|
spa->spa_uberblock.ub_version >= SPA_VERSION_NEXT_CLONES) {
|
|
dsl_pool_upgrade_clones(dp, tx);
|
|
}
|
|
|
|
/*
|
|
* If anything has changed in this txg, push the deferred frees
|
|
* from the previous txg. If not, leave them alone so that we
|
|
* don't generate work on an otherwise idle system.
|
|
*/
|
|
if (!txg_list_empty(&dp->dp_dirty_datasets, txg) ||
|
|
!txg_list_empty(&dp->dp_dirty_dirs, txg) ||
|
|
!txg_list_empty(&dp->dp_sync_tasks, txg))
|
|
spa_sync_deferred_frees(spa, txg);
|
|
|
|
/*
|
|
* Iterate to convergence.
|
|
*/
|
|
do {
|
|
spa->spa_sync_pass++;
|
|
|
|
spa_sync_config_object(spa, tx);
|
|
spa_sync_aux_dev(spa, &spa->spa_spares, tx,
|
|
ZPOOL_CONFIG_SPARES, DMU_POOL_SPARES);
|
|
spa_sync_aux_dev(spa, &spa->spa_l2cache, tx,
|
|
ZPOOL_CONFIG_L2CACHE, DMU_POOL_L2CACHE);
|
|
spa_errlog_sync(spa, txg);
|
|
dsl_pool_sync(dp, txg);
|
|
|
|
dirty_vdevs = 0;
|
|
while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) {
|
|
vdev_sync(vd, txg);
|
|
dirty_vdevs++;
|
|
}
|
|
|
|
bplist_sync(bpl, tx);
|
|
} while (dirty_vdevs);
|
|
|
|
bplist_close(bpl);
|
|
|
|
dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass);
|
|
|
|
/*
|
|
* Rewrite the vdev configuration (which includes the uberblock)
|
|
* to commit the transaction group.
|
|
*
|
|
* If there are no dirty vdevs, we sync the uberblock to a few
|
|
* random top-level vdevs that are known to be visible in the
|
|
* config cache (see spa_vdev_add() for a complete description).
|
|
* If there *are* dirty vdevs, sync the uberblock to all vdevs.
|
|
*/
|
|
for (;;) {
|
|
/*
|
|
* We hold SCL_STATE to prevent vdev open/close/etc.
|
|
* while we're attempting to write the vdev labels.
|
|
*/
|
|
spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
|
|
|
|
if (list_is_empty(&spa->spa_config_dirty_list)) {
|
|
vdev_t *svd[SPA_DVAS_PER_BP];
|
|
int svdcount = 0;
|
|
int children = rvd->vdev_children;
|
|
int c0 = spa_get_random(children);
|
|
int c;
|
|
|
|
for (c = 0; c < children; c++) {
|
|
vd = rvd->vdev_child[(c0 + c) % children];
|
|
if (vd->vdev_ms_array == 0 || vd->vdev_islog)
|
|
continue;
|
|
svd[svdcount++] = vd;
|
|
if (svdcount == SPA_DVAS_PER_BP)
|
|
break;
|
|
}
|
|
error = vdev_config_sync(svd, svdcount, txg);
|
|
} else {
|
|
error = vdev_config_sync(rvd->vdev_child,
|
|
rvd->vdev_children, txg);
|
|
}
|
|
|
|
spa_config_exit(spa, SCL_STATE, FTAG);
|
|
|
|
if (error == 0)
|
|
break;
|
|
zio_suspend(spa, NULL);
|
|
zio_resume_wait(spa);
|
|
}
|
|
dmu_tx_commit(tx);
|
|
|
|
/*
|
|
* Clear the dirty config list.
|
|
*/
|
|
while ((vd = list_head(&spa->spa_config_dirty_list)) != NULL)
|
|
vdev_config_clean(vd);
|
|
|
|
/*
|
|
* Now that the new config has synced transactionally,
|
|
* let it become visible to the config cache.
|
|
*/
|
|
if (spa->spa_config_syncing != NULL) {
|
|
spa_config_set(spa, spa->spa_config_syncing);
|
|
spa->spa_config_txg = txg;
|
|
spa->spa_config_syncing = NULL;
|
|
}
|
|
|
|
spa->spa_ubsync = spa->spa_uberblock;
|
|
|
|
/*
|
|
* Clean up the ZIL records for the synced txg.
|
|
*/
|
|
dsl_pool_zil_clean(dp);
|
|
|
|
/*
|
|
* Update usable space statistics.
|
|
*/
|
|
while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg)))
|
|
vdev_sync_done(vd, txg);
|
|
|
|
/*
|
|
* It had better be the case that we didn't dirty anything
|
|
* since vdev_config_sync().
|
|
*/
|
|
ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg));
|
|
ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg));
|
|
ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg));
|
|
ASSERT(bpl->bpl_queue == NULL);
|
|
|
|
spa_config_exit(spa, SCL_CONFIG, FTAG);
|
|
|
|
/*
|
|
* If any async tasks have been requested, kick them off.
|
|
*/
|
|
spa_async_dispatch(spa);
|
|
}
|
|
|
|
/*
|
|
* Sync all pools. We don't want to hold the namespace lock across these
|
|
* operations, so we take a reference on the spa_t and drop the lock during the
|
|
* sync.
|
|
*/
|
|
void
|
|
spa_sync_allpools(void)
|
|
{
|
|
spa_t *spa = NULL;
|
|
mutex_enter(&spa_namespace_lock);
|
|
while ((spa = spa_next(spa)) != NULL) {
|
|
if (spa_state(spa) != POOL_STATE_ACTIVE || spa_suspended(spa))
|
|
continue;
|
|
spa_open_ref(spa, FTAG);
|
|
mutex_exit(&spa_namespace_lock);
|
|
txg_wait_synced(spa_get_dsl(spa), 0);
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
mutex_exit(&spa_namespace_lock);
|
|
}
|
|
|
|
/*
|
|
* ==========================================================================
|
|
* Miscellaneous routines
|
|
* ==========================================================================
|
|
*/
|
|
|
|
/*
|
|
* Remove all pools in the system.
|
|
*/
|
|
void
|
|
spa_evict_all(void)
|
|
{
|
|
spa_t *spa;
|
|
|
|
/*
|
|
* Remove all cached state. All pools should be closed now,
|
|
* so every spa in the AVL tree should be unreferenced.
|
|
*/
|
|
mutex_enter(&spa_namespace_lock);
|
|
while ((spa = spa_next(NULL)) != NULL) {
|
|
/*
|
|
* Stop async tasks. The async thread may need to detach
|
|
* a device that's been replaced, which requires grabbing
|
|
* spa_namespace_lock, so we must drop it here.
|
|
*/
|
|
spa_open_ref(spa, FTAG);
|
|
mutex_exit(&spa_namespace_lock);
|
|
spa_async_suspend(spa);
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa_close(spa, FTAG);
|
|
|
|
if (spa->spa_state != POOL_STATE_UNINITIALIZED) {
|
|
spa_unload(spa);
|
|
spa_deactivate(spa);
|
|
}
|
|
spa_remove(spa);
|
|
}
|
|
mutex_exit(&spa_namespace_lock);
|
|
}
|
|
|
|
vdev_t *
|
|
spa_lookup_by_guid(spa_t *spa, uint64_t guid, boolean_t aux)
|
|
{
|
|
vdev_t *vd;
|
|
int i;
|
|
|
|
if ((vd = vdev_lookup_by_guid(spa->spa_root_vdev, guid)) != NULL)
|
|
return (vd);
|
|
|
|
if (aux) {
|
|
for (i = 0; i < spa->spa_l2cache.sav_count; i++) {
|
|
vd = spa->spa_l2cache.sav_vdevs[i];
|
|
if (vd->vdev_guid == guid)
|
|
return (vd);
|
|
}
|
|
|
|
for (i = 0; i < spa->spa_spares.sav_count; i++) {
|
|
vd = spa->spa_spares.sav_vdevs[i];
|
|
if (vd->vdev_guid == guid)
|
|
return (vd);
|
|
}
|
|
}
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
void
|
|
spa_upgrade(spa_t *spa, uint64_t version)
|
|
{
|
|
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
|
|
|
|
/*
|
|
* This should only be called for a non-faulted pool, and since a
|
|
* future version would result in an unopenable pool, this shouldn't be
|
|
* possible.
|
|
*/
|
|
ASSERT(spa->spa_uberblock.ub_version <= SPA_VERSION);
|
|
ASSERT(version >= spa->spa_uberblock.ub_version);
|
|
|
|
spa->spa_uberblock.ub_version = version;
|
|
vdev_config_dirty(spa->spa_root_vdev);
|
|
|
|
spa_config_exit(spa, SCL_ALL, FTAG);
|
|
|
|
txg_wait_synced(spa_get_dsl(spa), 0);
|
|
}
|
|
|
|
boolean_t
|
|
spa_has_spare(spa_t *spa, uint64_t guid)
|
|
{
|
|
int i;
|
|
uint64_t spareguid;
|
|
spa_aux_vdev_t *sav = &spa->spa_spares;
|
|
|
|
for (i = 0; i < sav->sav_count; i++)
|
|
if (sav->sav_vdevs[i]->vdev_guid == guid)
|
|
return (B_TRUE);
|
|
|
|
for (i = 0; i < sav->sav_npending; i++) {
|
|
if (nvlist_lookup_uint64(sav->sav_pending[i], ZPOOL_CONFIG_GUID,
|
|
&spareguid) == 0 && spareguid == guid)
|
|
return (B_TRUE);
|
|
}
|
|
|
|
return (B_FALSE);
|
|
}
|
|
|
|
/*
|
|
* Check if a pool has an active shared spare device.
|
|
* Note: reference count of an active spare is 2, as a spare and as a replace
|
|
*/
|
|
static boolean_t
|
|
spa_has_active_shared_spare(spa_t *spa)
|
|
{
|
|
int i, refcnt;
|
|
uint64_t pool;
|
|
spa_aux_vdev_t *sav = &spa->spa_spares;
|
|
|
|
for (i = 0; i < sav->sav_count; i++) {
|
|
if (spa_spare_exists(sav->sav_vdevs[i]->vdev_guid, &pool,
|
|
&refcnt) && pool != 0ULL && pool == spa_guid(spa) &&
|
|
refcnt > 2)
|
|
return (B_TRUE);
|
|
}
|
|
|
|
return (B_FALSE);
|
|
}
|
|
|
|
/*
|
|
* Post a sysevent corresponding to the given event. The 'name' must be one of
|
|
* the event definitions in sys/sysevent/eventdefs.h. The payload will be
|
|
* filled in from the spa and (optionally) the vdev. This doesn't do anything
|
|
* in the userland libzpool, as we don't want consumers to misinterpret ztest
|
|
* or zdb as real changes.
|
|
*/
|
|
void
|
|
spa_event_notify(spa_t *spa, vdev_t *vd, const char *name)
|
|
{
|
|
#if 0
|
|
#ifdef _KERNEL
|
|
sysevent_t *ev;
|
|
sysevent_attr_list_t *attr = NULL;
|
|
sysevent_value_t value;
|
|
sysevent_id_t eid;
|
|
|
|
ev = sysevent_alloc(EC_ZFS, (char *)name, SUNW_KERN_PUB "zfs",
|
|
SE_SLEEP);
|
|
|
|
value.value_type = SE_DATA_TYPE_STRING;
|
|
value.value.sv_string = spa_name(spa);
|
|
if (sysevent_add_attr(&attr, ZFS_EV_POOL_NAME, &value, SE_SLEEP) != 0)
|
|
goto done;
|
|
|
|
value.value_type = SE_DATA_TYPE_UINT64;
|
|
value.value.sv_uint64 = spa_guid(spa);
|
|
if (sysevent_add_attr(&attr, ZFS_EV_POOL_GUID, &value, SE_SLEEP) != 0)
|
|
goto done;
|
|
|
|
if (vd) {
|
|
value.value_type = SE_DATA_TYPE_UINT64;
|
|
value.value.sv_uint64 = vd->vdev_guid;
|
|
if (sysevent_add_attr(&attr, ZFS_EV_VDEV_GUID, &value,
|
|
SE_SLEEP) != 0)
|
|
goto done;
|
|
|
|
if (vd->vdev_path) {
|
|
value.value_type = SE_DATA_TYPE_STRING;
|
|
value.value.sv_string = vd->vdev_path;
|
|
if (sysevent_add_attr(&attr, ZFS_EV_VDEV_PATH,
|
|
&value, SE_SLEEP) != 0)
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
if (sysevent_attach_attributes(ev, attr) != 0)
|
|
goto done;
|
|
attr = NULL;
|
|
|
|
(void) log_sysevent(ev, SE_SLEEP, &eid);
|
|
|
|
done:
|
|
if (attr)
|
|
sysevent_free_attr(attr);
|
|
sysevent_free(ev);
|
|
#endif
|
|
#endif
|
|
}
|