static void
zfs_znode_dmu_init(zfsvfs_t *zfsvfs, znode_t *zp, dmu_buf_t *db)
{
znode_t *nzp;
ASSERT(!POINTER_IS_VALID(zp->z_zfsvfs) || (zfsvfs == zp->z_zfsvfs));
ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(zfsvfs, zp->z_id)));
mutex_enter(&zp->z_lock);
ASSERT(zp->z_dbuf == NULL);
zp->z_dbuf = db;
nzp = dmu_buf_set_user_ie(db, zp, &zp->z_phys, znode_evict_error);
/*
* there should be no
* concurrent zgets on this object.
*/
if (nzp != NULL)
panic("existing znode %p for dbuf %p", (void *)nzp, (void *)db);
/*
* Slap on VROOT if we are the root znode
*/
if (zp->z_id == zfsvfs->z_root)
ZTOV(zp)->v_flag |= VROOT;
mutex_exit(&zp->z_lock);
vn_exists(ZTOV(zp));
}
void
zfs_znode_dmu_fini(znode_t *zp)
{
ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(ZTOZSB(zp), zp->z_id)) ||
zp->z_unlinked ||
RW_WRITE_HELD(&ZTOZSB(zp)->z_teardown_inactive_lock));
sa_handle_destroy(zp->z_sa_hdl);
zp->z_sa_hdl = NULL;
}
void
zfs_znode_dmu_fini(znode_t *zp)
{
dmu_buf_t *db = zp->z_dbuf;
ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(zp->z_zfsvfs, zp->z_id)) ||
zp->z_unlinked ||
RW_WRITE_HELD(&zp->z_zfsvfs->z_teardown_inactive_lock));
ASSERT(zp->z_dbuf != NULL);
zp->z_dbuf = NULL;
VERIFY(zp == dmu_buf_update_user(db, zp, NULL, NULL, NULL));
dmu_buf_rele(db, NULL);
}
static void
zfs_znode_sa_init(zfs_sb_t *zsb, znode_t *zp,
dmu_buf_t *db, dmu_object_type_t obj_type, sa_handle_t *sa_hdl)
{
ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(zsb, zp->z_id)));
mutex_enter(&zp->z_lock);
ASSERT(zp->z_sa_hdl == NULL);
ASSERT(zp->z_acl_cached == NULL);
if (sa_hdl == NULL) {
VERIFY(0 == sa_handle_get_from_db(zsb->z_os, db, zp,
SA_HDL_SHARED, &zp->z_sa_hdl));
} else {
zp->z_sa_hdl = sa_hdl;
sa_set_userp(sa_hdl, zp);
}
zp->z_is_sa = (obj_type == DMU_OT_SA) ? B_TRUE : B_FALSE;
mutex_exit(&zp->z_lock);
}
