staging: lustre: fix gfp_t/int coercion

Fix a few implicit casts between int and gfp_t which were caught by sparse.

Signed-off-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

diff --cc drivers/staging/lustre/lustre/ptlrpc/client.c
Simple merge

diff --cc drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
Simple merge