diff options
Diffstat (limited to 'module/zfs/dmu.c')
| -rw-r--r-- | module/zfs/dmu.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/module/zfs/dmu.c b/module/zfs/dmu.c index e0114e659..2b727372c 100644 --- a/module/zfs/dmu.c +++ b/module/zfs/dmu.c @@ -1542,29 +1542,39 @@ dmu_return_arcbuf(arc_buf_t *buf) arc_buf_destroy(buf, FTAG); } -void -dmu_convert_to_raw(dmu_buf_t *handle, boolean_t byteorder, const uint8_t *salt, - const uint8_t *iv, const uint8_t *mac, dmu_tx_t *tx) +int +dmu_convert_mdn_block_to_raw(objset_t *os, uint64_t firstobj, + boolean_t byteorder, const uint8_t *salt, const uint8_t *iv, + const uint8_t *mac, dmu_tx_t *tx) { - dmu_object_type_t type; - dmu_buf_impl_t *db = (dmu_buf_impl_t *)handle; - uint64_t dsobj = dmu_objset_id(db->db_objset); + int ret; + dmu_buf_t *handle = NULL; + dmu_buf_impl_t *db = NULL; + uint64_t offset = firstobj * DNODE_MIN_SIZE; + uint64_t dsobj = dmu_objset_id(os); - ASSERT3P(db->db_buf, !=, NULL); - ASSERT3U(dsobj, !=, 0); + ret = dmu_buf_hold_by_dnode(DMU_META_DNODE(os), offset, FTAG, &handle, + DMU_READ_PREFETCH | DMU_READ_NO_DECRYPT); + if (ret != 0) + return (ret); dmu_buf_will_change_crypt_params(handle, tx); - DB_DNODE_ENTER(db); - type = DB_DNODE(db)->dn_type; - DB_DNODE_EXIT(db); + db = (dmu_buf_impl_t *)handle; + ASSERT3P(db->db_buf, !=, NULL); + ASSERT3U(dsobj, !=, 0); /* * This technically violates the assumption the dmu code makes * that dnode blocks are only released in syncing context. */ (void) arc_release(db->db_buf, db); - arc_convert_to_raw(db->db_buf, dsobj, byteorder, type, salt, iv, mac); + arc_convert_to_raw(db->db_buf, dsobj, byteorder, DMU_OT_DNODE, + salt, iv, mac); + + dmu_buf_rele(handle, FTAG); + + return (0); } void |