spa_is_initializing
spa_is_initializing(dp->dp_spa) ||
spa->spa_is_initializing = B_TRUE;
spa->spa_is_initializing = B_FALSE;
spa->spa_is_initializing = B_TRUE;
spa->spa_is_initializing = B_FALSE;
return (spa->spa_is_initializing);
extern boolean_t spa_is_initializing(spa_t *spa);
boolean_t spa_is_initializing; /* true while opening pool */