staging/lustre: fix for invalidatepage() API change

somehow this got dropped during merge window...

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/lustre/lustre/include/linux/lustre_patchless_compat.h
Simple merge

diff --cc drivers/staging/lustre/lustre/llite/rw26.c
Simple merge