diff options
Diffstat (limited to 'module')
| -rw-r--r-- | module/zfs/spa_config.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/module/zfs/spa_config.c b/module/zfs/spa_config.c index 5b95a8e81..c8fe79ed5 100644 --- a/module/zfs/spa_config.c +++ b/module/zfs/spa_config.c @@ -208,6 +208,7 @@ spa_config_sync(spa_t *target, boolean_t removing, boolean_t postsysevent) { spa_config_dirent_t *dp, *tdp; nvlist_t *nvl; + char *pool_name; ASSERT(MUTEX_HELD(&spa_namespace_lock)); @@ -254,7 +255,13 @@ spa_config_sync(spa_t *target, boolean_t removing, boolean_t postsysevent) VERIFY(nvlist_alloc(&nvl, NV_UNIQUE_NAME, KM_PUSHPAGE) == 0); - VERIFY(nvlist_add_nvlist(nvl, spa->spa_name, + if (spa->spa_import_flags & ZFS_IMPORT_TEMP_NAME) { + VERIFY0(nvlist_lookup_string(spa->spa_config, + ZPOOL_CONFIG_POOL_NAME, &pool_name)); + } else + pool_name = spa_name(spa); + + VERIFY(nvlist_add_nvlist(nvl, pool_name, spa->spa_config) == 0); mutex_exit(&spa->spa_props_lock); } @@ -337,6 +344,7 @@ spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats) unsigned long hostid = 0; boolean_t locked = B_FALSE; uint64_t split_guid; + char *pool_name; if (vd == NULL) { vd = rvd; @@ -353,12 +361,28 @@ spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats) if (txg == -1ULL) txg = spa->spa_config_txg; + /* + * Originally, users had to handle spa namespace collisions by either + * exporting the already imported pool or by specifying a new name for + * the pool with a conflicting name. In the case of root pools from + * virtual guests, neither approach to collision resolution is + * reasonable. This is addressed by extending the new name syntax with + * an option to specify that the new name is temporary. When specified, + * ZFS_IMPORT_TEMP_NAME will be set in spa->spa_import_flags to tell us + * to use the previous name, which we do below. + */ + if (spa->spa_import_flags & ZFS_IMPORT_TEMP_NAME) { + VERIFY0(nvlist_lookup_string(spa->spa_config, + ZPOOL_CONFIG_POOL_NAME, &pool_name)); + } else + pool_name = spa_name(spa); + VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, KM_PUSHPAGE) == 0); VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, spa_version(spa)) == 0); VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, - spa_name(spa)) == 0); + pool_name) == 0); VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, spa_state(spa)) == 0); VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_TXG, |