Author: mav Date: Wed Jul 26 16:26:34 2017 New Revision: 321540 URL: https://svnweb.freebsd.org/changeset/base/321540
Log: MFC r317533: MFV 316900 7743 per-vdev-zaps have no initialize path on upgrade illumos/illumos-gate@555da5111b0f2552c42d057b211aba89c9c79f6c https://github.com/illumos/illumos-gate/commit/555da5111b0f2552c42d057b211aba89c9c79f6c https://www.illumos.org/issues/7743 When loading a pool that had been created before the existance of per-vdev zaps, on a system that knows about per-vdev zaps, the per-vdev zaps will not be allocated and initialized. This appears to be because the logic that would have done so, in spa_sync_config_object(), is not reached under normal operation. It is only reached if spa_config_dirty_list is non-empty. The fix is to add another `AVZ_ACTION_` enum that will allow this code to be reached when we detect that we're loading an old pool, even when there are no dirty configs. Reviewed by: Matt Ahrens <mahr...@delphix.com> Reviewed by: Pavel Zakharov <pavel.zakha...@delphix.com> Reviewed by: George Wilson <george.wil...@delphix.com> Reviewed by: Don Brady <don.br...@intel.com> Approved by: Robert Mustacchi <r...@joyent.com> Author: Paul Dagnelie <p...@delphix.com> Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/spa_impl.h Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c ============================================================================== --- stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c Wed Jul 26 16:25:46 2017 (r321539) +++ stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c Wed Jul 26 16:26:34 2017 (r321540) @@ -2736,10 +2736,14 @@ spa_load_impl(spa_t *spa, uint64_t pool_guid, nvlist_t error = spa_dir_prop(spa, DMU_POOL_VDEV_ZAP_MAP, &spa->spa_all_vdev_zaps); - if (error != ENOENT && error != 0) { + if (error == ENOENT) { + VERIFY(!nvlist_exists(mos_config, + ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)); + spa->spa_avz_action = AVZ_ACTION_INITIALIZE; + ASSERT0(vdev_count_verify_zaps(spa->spa_root_vdev)); + } else if (error != 0) { return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); - } else if (error == 0 && !nvlist_exists(mos_config, - ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)) { + } else if (!nvlist_exists(mos_config, ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)) { /* * An older version of ZFS overwrote the sentinel value, so * we have orphaned per-vdev ZAPs in the MOS. Defer their @@ -6503,6 +6507,7 @@ spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); ASSERT(spa->spa_avz_action == AVZ_ACTION_NONE || + spa->spa_avz_action == AVZ_ACTION_INITIALIZE || spa->spa_all_vdev_zaps != 0); if (spa->spa_avz_action == AVZ_ACTION_REBUILD) { Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/spa_impl.h ============================================================================== --- stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/spa_impl.h Wed Jul 26 16:25:46 2017 (r321539) +++ stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/spa_impl.h Wed Jul 26 16:26:34 2017 (r321540) @@ -120,7 +120,8 @@ typedef struct spa_taskqs { typedef enum spa_all_vdev_zap_action { AVZ_ACTION_NONE = 0, AVZ_ACTION_DESTROY, /* Destroy all per-vdev ZAPs and the AVZ. */ - AVZ_ACTION_REBUILD /* Populate the new AVZ, see spa_avz_rebuild */ + AVZ_ACTION_REBUILD, /* Populate the new AVZ, see spa_avz_rebuild */ + AVZ_ACTION_INITIALIZE } spa_avz_action_t; struct spa { _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"