[pnfs] [PATCH 0/9] layoutrecall client side overhaul

[Benny Halevy]

This patchset overhauls the layoutrecall client side.
by handling segmented layout recalls and returns
as well as correctly handling RECALL_FSID and RECALL_ALL
(and terminating the layout return process by sending a
final layoutreturn that corresponds to the recalled type
and args)

[PATCH 1/9] layoutrecall: pass layout_segment to pnfs_return_layout

[PATCH 2/9] layoutrecall: introduce pnfs_return_layout_rpc

[PATCH 3/9] layoutrecall: convert pnfs_return_layout

[PATCH 4/9] layoutrecall: prepare for NFS4ERR_NOMATCHING_LAYOUT

[PATCH 5/9] layoutrecall: use cbl_recall_type in recall_layout_thread

[PATCH 6/9] layoutrecall: implement RECALL_ALL

[PATCH 7/9] layoutrecall: send final layout return

[PATCH 8/9] layoutrecall: add commentary

[PATCH 9/9] layoutrecall: allow nested layout recall/return in nfsd_close