NFSv4.1/flexfiles: Mark the layout for return in ff_layout_io_track_ds_error()
NFSv4.1/flexfiles: Mark the layout for return in ff_layout_io_track_ds_error()

When I/O cannot complete due to a fatal error on the DS, ensure that we
invalidate the corresponding layout segment and return it.

Signed-off-by: Trond Myklebust <cc958843532c615cbd4920e868f78c7985331a5a@primarydata.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs