| commit | 9a4bf31d05a801e2358d96f69b39fb8ce2c69dd8 | [log] [tgz] |
|---|---|---|
| author | Jeff Layton <jlayton@poochiereds.net> | Thu Dec 10 10:41:58 2015 -0500 |
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | Mon Dec 28 09:57:14 2015 -0500 |
| tree | c132b620128e2035a56baa9b3314d0aaf909647b | |
| parent | 9759b0fb1d202e6bc9bdab10612189abc9389df8 [diff] |
nfs: add new tracepoint for pnfs_update_layout pnfs_update_layout is really the "nexus" of layout handling. If it returns NULL then we end up going through the MDS. This patch adds some tracepoints to that function that allow us to determine the cause when we end up going through the MDS unexpectedly. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>