tree 4fab39683df70cee7f7aea7d7718072a811ad153
parent 8a1636c459cb7a4b32ba4024cd1b2ba21fba6aed
author Andy Adamson <andros@netapp.com> 1306083190 +0300
committer Boaz Harrosh <bharrosh@panasas.com> 1306691677 +0300

pnfs: encode_layoutreturn

Add a layout driver method to encode the layout type specific
opaque part of layout return in-line in the xdr stream.

Currently the pnfs-objects layout driver uses it to encode i/o error
information on LAYOUTRETURN.

Signed-off-by: Andy Adamson <andros@netapp.com>
[fixup layout header pointer for encode_layoutreturn]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>