Symbol: zio_write_override
usr/src/uts/common/fs/zfs/dbuf.c
4233
zio_write_override(dr->dr_zio, &dr->dt.dl.dr_overridden_by,
usr/src/uts/common/fs/zfs/sys/zio.h
530
extern void zio_write_override(zio_t *zio, blkptr_t *bp, int copies,