tree a2f515ecbc46316adfd1b937d62eeb9a48957d1c
parent 848746bd247cdc3ce1d103e92913316445763778
author Christoph Hellwig <hch@lst.de> 1409718477 -0700
committer Trond Myklebust <trond.myklebust@primarydata.com> 1410378423 -0700

pnfs: factor GETDEVICEINFO implementations

Add support to the common pNFS core to issue GETDEVICEINFO calls on
a device ID cache miss.  The code is taken from the well debugged
file layout implementation and calls out to the layoutdriver through
a new alloc_deviceid_node method.  The calling conventions for
nfs4_find_get_deviceid are changed so that all information needed to
send a GETDEVICEINFO request is passed to the common code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>