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MFV r329736: 8969 Cannot boot from RAIDZ with parity > 1

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illumos/illumos-gate@0fb055e81f

At present it is possible to boot from a root pool that is on RAIDZ but not
one that is on RAIDZ2 or RAIDZ3.  This is because, at the time the pool
version is checked to ensure support for dual/triple parity, the uberblock
has not yet been loaded into the SPA and therefore the code determines that
the pool version is too old and returns ENOTSUP.

Reviewed by: Igor Kozhukhov <igor@dilos.org>
Reviewed by: Andriy Gapon <avg@FreeBSD.org>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Andy Stormont <astormont@racktopsystems.com>
Reviewed by: Toomas Soome <tsoome@me.com>
Approved by: Gordon Ross <gwr@nexenta.com>
Author: Andy Fiddaman <omnios@citrus-it.co.uk>

FreeBSD already had this fixed, so this is just a diff reduction.
This commit is contained in:
Alexander Motin 2018-02-21 18:12:19 +00:00
commit 832deba1e5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=329738
1 changed files with 4 additions and 0 deletions
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4
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
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@ -30,6 +30,7 @@
* Copyright 2016 Toomas Soome <tsoome@me.com>
* Copyright 2017 Joyent, Inc.
* Copyright (c) 2017 Datto Inc.
* Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
*/
/*
@ -4141,6 +4142,9 @@ spa_import_rootpool(char *devpath, char *devid)
spa = spa_add(pname, config, NULL);
spa->spa_is_root = B_TRUE;
spa->spa_import_flags = ZFS_IMPORT_VERBATIM;
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&spa->spa_ubsync.ub_version) != 0)
spa->spa_ubsync.ub_version = SPA_VERSION_INITIAL;
/*
* Build up a vdev tree based on the boot device's label config.