ceph: add inline data to pagecache

Request reply and cap message can contain inline data. add inline data
to the page cache if there is Fc cap.

Signed-off-by: Yan, Zheng <zyan@redhat.com>

diff --cc fs/ceph/addr.c
Simple merge

diff --cc fs/ceph/caps.c
Simple merge

diff --cc fs/ceph/inode.c
Simple merge

diff --cc fs/ceph/super.h
Simple merge

diff --cc fs/ceph/super.h.rej
Simple merge

diff --cc include/linux/ceph/ceph_fs.h
Simple merge