5 OST_STATFS is an RPC that queries data about the underlying file
6 system for a given OST.
8 The OST_STATFS request message is a so-called "empty" message in that
9 it only has a buffer for the 'ptlrpc_body' with the 'pb_opc' value
12 The reply message conveys 'statfs' data when it succeeds, and an error
15 .OST_STATFS Request Packet Structure
16 image::ost-statfs-request.png["OST_STATFS Request Packet Structure",height=50]
18 //////////////////////////////////////////////////////////////////////
19 The ost-statfs-request.png diagram resembles this text art:
25 //////////////////////////////////////////////////////////////////////
28 RPC descriptor. See <<struct-ptlrpc-body>>.
30 .OST_STATFS Reply Packet Structure
31 image::ost-statfs-reply.png["OST_STATFS Reply Packet Structure",height=50]
33 //////////////////////////////////////////////////////////////////////
34 The ost-statfs-reply.png diagram resembles this text art:
37 --reply---------------------
38 | ptlrpc_body | obd_statfs |
39 ----------------------------
40 //////////////////////////////////////////////////////////////////////
43 RPC descriptor. See <<struct-ptlrpc-body>>.
45 include::struct_obd_statfs.txt[]