1817 zap_cursor_init_impl(zap_cursor_t *zc, objset_t *os, uint64_t zapobj,  in zap_cursor_init_impl()  argument
1820 	zc->zc_objset = os;  in zap_cursor_init_impl()
1821 	zc->zc_zap = NULL;  in zap_cursor_init_impl()
1822 	zc->zc_leaf = NULL;  in zap_cursor_init_impl()
1823 	zc->zc_zapobj = zapobj;  in zap_cursor_init_impl()
1824 	zc->zc_serialized = serialized;  in zap_cursor_init_impl()
1825 	zc->zc_hash = 0;  in zap_cursor_init_impl()
1826 	zc->zc_cd = 0;  in zap_cursor_init_impl()
1827 	zc->zc_prefetch = prefetch;  in zap_cursor_init_impl()
1830 zap_cursor_init_serialized(zap_cursor_t *zc, objset_t *os, uint64_t zapobj,  in zap_cursor_init_serialized()  argument
1833 	zap_cursor_init_impl(zc, os, zapobj, serialized, B_TRUE);  in zap_cursor_init_serialized()
1841 zap_cursor_init(zap_cursor_t *zc, objset_t *os, uint64_t zapobj)  in zap_cursor_init()  argument
1843 	zap_cursor_init_impl(zc, os, zapobj, 0, B_TRUE);  in zap_cursor_init()
1851 zap_cursor_init_noprefetch(zap_cursor_t *zc, objset_t *os, uint64_t zapobj)  in zap_cursor_init_noprefetch()  argument
1853 	zap_cursor_init_impl(zc, os, zapobj, 0, B_FALSE);  in zap_cursor_init_noprefetch()
1857 zap_cursor_fini(zap_cursor_t *zc)  in zap_cursor_fini()  argument
1859 	if (zc->zc_zap) {  in zap_cursor_fini()
1860 		rw_enter(&zc->zc_zap->zap_rwlock, RW_READER);  in zap_cursor_fini()
1861 		zap_unlockdir(zc->zc_zap, NULL);  in zap_cursor_fini()
1862 		zc->zc_zap = NULL;  in zap_cursor_fini()
1864 	if (zc->zc_leaf) {  in zap_cursor_fini()
1865 		rw_enter(&zc->zc_leaf->l_rwlock, RW_READER);  in zap_cursor_fini()
1866 		zap_put_leaf(zc->zc_leaf);  in zap_cursor_fini()
1867 		zc->zc_leaf = NULL;  in zap_cursor_fini()
1869 	zc->zc_objset = NULL;  in zap_cursor_fini()
1873 zap_cursor_serialize(zap_cursor_t *zc)  in zap_cursor_serialize()  argument
1875 	if (zc->zc_hash == -1ULL)  in zap_cursor_serialize()
1877 	if (zc->zc_zap == NULL)  in zap_cursor_serialize()
1878 		return (zc->zc_serialized);  in zap_cursor_serialize()
1879 	ASSERT((zc->zc_hash & zap_maxcd(zc->zc_zap)) == 0);  in zap_cursor_serialize()
1880 	ASSERT(zc->zc_cd < zap_maxcd(zc->zc_zap));  in zap_cursor_serialize()
1890 	return ((zc->zc_hash >> (64 - zap_hashbits(zc->zc_zap))) |  in zap_cursor_serialize()
1891 	    ((uint64_t)zc->zc_cd << zap_hashbits(zc->zc_zap)));  in zap_cursor_serialize()
1895 zap_cursor_retrieve(zap_cursor_t *zc, zap_attribute_t *za)  in zap_cursor_retrieve()  argument
1899 	if (zc->zc_hash == -1ULL)  in zap_cursor_retrieve()
1902 	if (zc->zc_zap == NULL) {  in zap_cursor_retrieve()
1904 		err = zap_lockdir(zc->zc_objset, zc->zc_zapobj, NULL,  in zap_cursor_retrieve()
1905 		    RW_READER, TRUE, FALSE, NULL, &zc->zc_zap);  in zap_cursor_retrieve()
1914 		ASSERT(zc->zc_hash == 0);  in zap_cursor_retrieve()
1915 		hb = zap_hashbits(zc->zc_zap);  in zap_cursor_retrieve()
1916 		zc->zc_hash = zc->zc_serialized << (64 - hb);  in zap_cursor_retrieve()
1917 		zc->zc_cd += zc->zc_serialized >> hb;  in zap_cursor_retrieve()
1918 		if (zc->zc_cd >= zap_maxcd(zc->zc_zap)) /* corrupt serialized */  in zap_cursor_retrieve()
1919 			zc->zc_cd = 0;  in zap_cursor_retrieve()
1921 		rw_enter(&zc->zc_zap->zap_rwlock, RW_READER);  in zap_cursor_retrieve()
1923 	if (!zc->zc_zap->zap_ismicro) {  in zap_cursor_retrieve()
1924 		err = fzap_cursor_retrieve(zc->zc_zap, zc, za);  in zap_cursor_retrieve()
1929 		mze_tofind.mze_hash = zc->zc_hash >> 32;  in zap_cursor_retrieve()
1930 		mze_tofind.mze_cd = zc->zc_cd;  in zap_cursor_retrieve()
1932 		mzap_ent_t *mze = zfs_btree_find(&zc->zc_zap->zap_m.zap_tree,  in zap_cursor_retrieve()
1935 			mze = zfs_btree_next(&zc->zc_zap->zap_m.zap_tree,  in zap_cursor_retrieve()
1939 			mzap_ent_phys_t *mzep = MZE_PHYS(zc->zc_zap, mze);  in zap_cursor_retrieve()
1942 			    mzap_normalization_conflict(zc->zc_zap, NULL,  in zap_cursor_retrieve()
1949 			zc->zc_hash = (uint64_t)mze->mze_hash << 32;  in zap_cursor_retrieve()
1950 			zc->zc_cd = mze->mze_cd;  in zap_cursor_retrieve()
1953 			zc->zc_hash = -1ULL;  in zap_cursor_retrieve()
1957 	rw_exit(&zc->zc_zap->zap_rwlock);  in zap_cursor_retrieve()
1962 zap_cursor_advance(zap_cursor_t *zc)  in zap_cursor_advance()  argument
1964 	if (zc->zc_hash == -1ULL)  in zap_cursor_advance()
1966 	zc->zc_cd++;  in zap_cursor_advance()