Function dnode_undirty_dbufs

freebsd/contrib/openzfs/module/zfs/dnode_sync.c:527–557

}

static void
dnode_undirty_dbufs(list_t *list)
{
	dbuf_dirty_record_t *dr;

	while ((dr = list_head(list))) {
		dmu_buf_impl_t *db = dr->dr_dbuf;
		uint64_t txg = dr->dr_txg;

		if (db->db_level != 0)
			dnode_undirty_dbufs(&dr->dt.di.dr_children);

		mutex_enter(&db->db_mtx);
		/* XXX - use dbuf_undirty()? */
		list_remove(list, dr);
		ASSERT(list_head(&db->db_dirty_records) == dr);
		list_remove_head(&db->db_dirty_records);
		ASSERT(list_is_empty(&db->db_dirty_records));
		db->db_dirtycnt -= 1;
		if (db->db_level == 0) {
			ASSERT(db->db_blkid == DMU_BONUS_BLKID ||
			    dr->dt.dl.dr_data == db->db_buf);
			dbuf_unoverride(dr);
		} else {
			mutex_destroy(&dr->dt.di.dr_mtx);
			list_destroy(&dr->dt.di.dr_children);
		}
		kmem_free(dr, sizeof (dbuf_dirty_record_t));
		dbuf_rele_and_unlock(db, (void *)(uintptr_t)txg, B_FALSE);
	}
}

static void
dnode_sync_free(dnode_t *dn, dmu_tx_t *tx)