[ceph-users] any way to read magic number like #1018a1b3c14?

we are using cephfs. in /sys/kernel/debug/ceph/*/mdsc sometimes we saw something like - 2015909 mds0 setfilelock #1018a1b3c14 I know this #1018a1b3c14 is a file or a folder, but how to know what it really is in cephfs tree? Thanks!