ceph: move net/ceph/ceph_fs.c to fs/ceph/util.c

All of these functions are only called from CephFS, so move them into
ceph.ko, and drop the exports.

Signed-off-by: Jeff Layton <[e-mail]>
Reviewed-by: Ilya Dryomov <[e-mail]>
Signed-off-by: Ilya Dryomov <[e-mail]>

fs/ceph/Makefile

···
 ceph-y := super.o inode.o dir.o file.o locks.o addr.o ioctl.o \
 	export.o caps.o snap.o xattr.o quota.o io.o \
 	mds_client.o mdsmap.o strings.o ceph_frag.o \
-	debugfs.o
+	debugfs.o util.o
 
 ceph-$(CONFIG_CEPH_FSCACHE) += cache.o
 ceph-$(CONFIG_CEPH_FS_POSIX_ACL) += acl.o

net/ceph/Makefile

···
 	auth.o auth_none.o \
 	crypto.o armor.o \
 	auth_x.o \
-	ceph_fs.o ceph_strings.o ceph_hash.o \
+	ceph_strings.o ceph_hash.o \
 	pagevec.o snapshot.o string_table.o

net/ceph/ceph_fs.c fs/ceph/util.c

···
 	    fl->stripe_count == 0 && fl->object_size == 0)
 		fl->pool_id = -1;
 }
-EXPORT_SYMBOL(ceph_file_layout_from_legacy);
 
 void ceph_file_layout_to_legacy(struct ceph_file_layout *fl,
 				struct ceph_file_layout_legacy *legacy)
···
 	else
 		legacy->fl_pg_pool = 0;
 }
-EXPORT_SYMBOL(ceph_file_layout_to_legacy);
 
 int ceph_flags_to_mode(int flags)
 {
···
 
 	return mode;
 }
-EXPORT_SYMBOL(ceph_flags_to_mode);
 
 int ceph_caps_for_mode(int mode)
 {
···
 
 	return caps;
 }
-EXPORT_SYMBOL(ceph_caps_for_mode);