staging:lustre: use gfp_t instead of int

Fixed several sparse "warning: incorrect type" by replacing int
declarations with gfp_t

Signed-off-by: Vitaly Osipov <vitaly.osipov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

diff --cc drivers/staging/lustre/lustre/libcfs/module.c
Simple merge

diff --cc drivers/staging/lustre/lustre/libcfs/tracefile.c
Simple merge

diff --cc drivers/staging/lustre/lustre/libcfs/tracefile.h
Simple merge

diff --cc drivers/staging/lustre/lustre/obdecho/echo_client.c
Simple merge