Differential D14972 Diff 41396 head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c

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head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c

Show First 20 Lines • Show All 4,660 Lines • ▼ Show 20 Lines	spa_create(const char pool, nvlist_t nvroot, nvlist_t *props,
dsl_pool_t *dp;		dsl_pool_t *dp;
dmu_tx_t *tx;		dmu_tx_t *tx;
int error = 0;		int error = 0;
uint64_t txg = TXG_INITIAL;		uint64_t txg = TXG_INITIAL;
nvlist_t spares, l2cache;		nvlist_t spares, l2cache;
uint_t nspares, nl2cache;		uint_t nspares, nl2cache;
uint64_t version, obj;		uint64_t version, obj;
boolean_t has_features;		boolean_t has_features;
		char *poolname;
		nvlist_t *nvl;

		if (nvlist_lookup_string(props,
		zpool_prop_to_name(ZPOOL_PROP_TNAME), &poolname) != 0)
		poolname = (char *)pool;

/*		/*
* If this pool already exists, return failure.		* If this pool already exists, return failure.
*/		*/
mutex_enter(&spa_namespace_lock);		mutex_enter(&spa_namespace_lock);
if (spa_lookup(pool) != NULL) {		if (spa_lookup(poolname) != NULL) {
mutex_exit(&spa_namespace_lock);		mutex_exit(&spa_namespace_lock);
return (SET_ERROR(EEXIST));		return (SET_ERROR(EEXIST));
}		}

/*		/*
* Allocate a new spa_t structure.		* Allocate a new spa_t structure.
*/		*/
		nvl = fnvlist_alloc();
		fnvlist_add_string(nvl, ZPOOL_CONFIG_POOL_NAME, pool);
(void) nvlist_lookup_string(props,		(void) nvlist_lookup_string(props,
zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot);		zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot);
spa = spa_add(pool, NULL, altroot);		spa = spa_add(poolname, nvl, altroot);
		fnvlist_free(nvl);
spa_activate(spa, spa_mode_global);		spa_activate(spa, spa_mode_global);

if (props && (error = spa_prop_validate(spa, props))) {		if (props && (error = spa_prop_validate(spa, props))) {
spa_deactivate(spa);		spa_deactivate(spa);
spa_remove(spa);		spa_remove(spa);
mutex_exit(&spa_namespace_lock);		mutex_exit(&spa_namespace_lock);
return (error);		return (error);
}		}

		/*
		* Temporary pool names should never be written to disk.
		*/
		if (poolname != pool)
		spa->spa_import_flags \|= ZFS_IMPORT_TEMP_NAME;

has_features = B_FALSE;		has_features = B_FALSE;
for (nvpair_t *elem = nvlist_next_nvpair(props, NULL);		for (nvpair_t *elem = nvlist_next_nvpair(props, NULL);
elem != NULL; elem = nvlist_next_nvpair(props, elem)) {		elem != NULL; elem = nvlist_next_nvpair(props, elem)) {
if (zpool_prop_feature(nvpair_name(elem)))		if (zpool_prop_feature(nvpair_name(elem)))
has_features = B_TRUE;		has_features = B_TRUE;
}		}

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