Symbol: spa_keystore_unload_wkey
usr/src/uts/common/fs/zfs/sys/dsl_crypt.h
189
int spa_keystore_unload_wkey(const char *dsname);
usr/src/uts/common/fs/zfs/zfs_ioctl.c
6535
ret = spa_keystore_unload_wkey(dsname);