lustre_rpcs.txt

   1 Lustre RPCs
   2 -----------
   3 [[lustre-rpcs]]
   4
   5 Lustre RPC operations are implemented as a pair of messages, a request
   6 and its reply.  The 'pb_type' field is set to PTLRPC_MSG_REQUEST for
   7 requests initiating the operation, and normally PTLRPC_MSG_REPLY for
   8 replies unless the message encountered a fatal error before it could
   9 be processed, in which case it will contain PTLRPC_MSG_ERR.
  10
  11 The type of operation requested is denoted by the 'pb_opc' op-code field
  12 of the RPC request. Note that as a general matter, the receipt by a
  13 client of the reply message only assures the client that the server
  14 has initiated the action, if any, but does not guarantee that any
  15 modification has been committed to persistent storage. See the
  16 discussion on <<transno,transaction numbers>> and <<recovery>> for
  17 how the client is given confirmation that a request has been completed.
  18
  19 include::ost_setattr.txt[]
  20
  21 include::ost_connect.txt[]
  22
  23 include::ost_disconnect.txt[]
  24
  25 include::ost_punch.txt[]
  26
  27 include::ost_statfs.txt[]
  28
  29 include::mds_getattr.txt[]
  30
  31 include::mds_reint.txt[]
  32
  33 include::mds_connect.txt[]
  34
  35 include::mds_disconnect.txt[]
  36
  37 include::mds_getstatus.txt[]
  38
  39 include::mds_statfs.txt[]
  40
  41 include::mds_getxattr.txt[]
  42
  43 include::ldlm_enqueue.txt[]
  44
  45 include::ldlm_cancel.txt[]
  46
  47 include::ldlm_bl_callback.txt[]
  48
  49 include::ldlm_cp_callback.txt[]
  50
  51 include::ldlm_gl_callback.txt[]
  52
  53 include::mgs_connect.txt[]
  54
  55 include::mgs_disconnect.txt[]
  56
  57 include::mgs_config_read.txt[]
  58
  59 include::llog_origin_handle_create.txt[]
  60
  61 include::llog_origin_handle_next_block.txt[]
  62
  63 include::llog_origin_handle_read_header.txt[]
  64
  65 #################################################################
  66 Fixme: Move the RPC message sturucture includes to where they
  67 first gets introduced. In the sections that have the relevant
  68 operations.
  69 #################################################################
  70
  71 include::data_types.txt[]
  72
  73 include::mdt_structs.txt[]
  74
  75 include::mds_reint_structs.txt[]
  76
  77 include::ost_setattr_structs.txt[]
  78
  79 include::statfs_structs.txt[]