+static void
+zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)
+{
+ vdev_t *vd = sm->sm_ppd;
+
+ (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
+ (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
+}
+
+/* ARGSUSED */
+static void
+zdb_space_map_load(space_map_t *sm)
+{
+}
+
+static void
+zdb_space_map_unload(space_map_t *sm)
+{
+ space_map_vacate(sm, zdb_leak, sm);
+}
+
+/* ARGSUSED */
+static void
+zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size)
+{
+}
+
+static space_map_ops_t zdb_space_map_ops = {
+ zdb_space_map_load,
+ zdb_space_map_unload,
+ NULL, /* alloc */
+ zdb_space_map_claim,
+ NULL, /* free */
+ NULL /* maxsize */
+};
+
+static void
+zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
+{
+ ddt_bookmark_t ddb = { 0 };
+ ddt_entry_t dde;
+ int error;
+ int p;
+
+ while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
+ blkptr_t blk;
+ ddt_phys_t *ddp = dde.dde_phys;
+
+ if (ddb.ddb_class == DDT_CLASS_UNIQUE)
+ return;
+
+ ASSERT(ddt_phys_total_refcnt(&dde) > 1);
+
+ for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
+ if (ddp->ddp_phys_birth == 0)
+ continue;
+ ddt_bp_create(ddb.ddb_checksum,
+ &dde.dde_key, ddp, &blk);
+ if (p == DDT_PHYS_DITTO) {
+ zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
+ } else {
+ zcb->zcb_dedup_asize +=
+ BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
+ zcb->zcb_dedup_blocks++;
+ }
+ }
+ if (!dump_opt['L']) {
+ ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
+ ddt_enter(ddt);
+ VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
+ ddt_exit(ddt);
+ }
+ }
+
+ ASSERT(error == ENOENT);
+}
+
+static void
+zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
+{
+ zcb->zcb_spa = spa;
+ int c, m;
+
+ if (!dump_opt['L']) {
+ vdev_t *rvd = spa->spa_root_vdev;
+ for (c = 0; c < rvd->vdev_children; c++) {
+ vdev_t *vd = rvd->vdev_child[c];
+ for (m = 0; m < vd->vdev_ms_count; m++) {
+ metaslab_t *msp = vd->vdev_ms[m];
+ mutex_enter(&msp->ms_lock);
+ space_map_unload(&msp->ms_map);
+ VERIFY(space_map_load(&msp->ms_map,
+ &zdb_space_map_ops, SM_ALLOC, &msp->ms_smo,
+ spa->spa_meta_objset) == 0);
+ msp->ms_map.sm_ppd = vd;
+ mutex_exit(&msp->ms_lock);
+ }
+ }
+ }
+
+ spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
+
+ zdb_ddt_leak_init(spa, zcb);
+
+ spa_config_exit(spa, SCL_CONFIG, FTAG);
+}
+
+static void
+zdb_leak_fini(spa_t *spa)
+{
+ int c, m;
+
+ if (!dump_opt['L']) {
+ vdev_t *rvd = spa->spa_root_vdev;
+ for (c = 0; c < rvd->vdev_children; c++) {
+ vdev_t *vd = rvd->vdev_child[c];
+ for (m = 0; m < vd->vdev_ms_count; m++) {
+ metaslab_t *msp = vd->vdev_ms[m];
+ mutex_enter(&msp->ms_lock);
+ space_map_unload(&msp->ms_map);
+ mutex_exit(&msp->ms_lock);
+ }
+ }
+ }
+}
+
+/* ARGSUSED */
+static int
+count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
+{
+ zdb_cb_t *zcb = arg;
+
+ if (dump_opt['b'] >= 4) {
+ char blkbuf[BP_SPRINTF_LEN];
+ sprintf_blkptr(blkbuf, bp);
+ (void) printf("[%s] %s\n",
+ "deferred free", blkbuf);
+ }
+ zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
+ return (0);
+}
+