Symbol: zfs_log_truncate
usr/src/uts/common/fs/zfs/sys/zfs_znode.h
346
extern void zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
usr/src/uts/common/fs/zfs/zfs_znode.c
1828
zfs_log_truncate(zilog, tx, TX_TRUNCATE, zp, off, len);