chattr +i not working with cephfs

[Eric Eastman <eric.eastman@xxxxxxxxxxxxxx>]

Should chattr +i  work with cephfs?

Using ceph v0.91 and a 3.18 kernel on the CephFS client, I tried this:

# mount | grep ceph
172.16.30.10:/ on /cephfs/test01 type ceph (name=cephfs,key=client.cephfs)
# echo 1 > /cephfs/test01/test.1
# ls -l /cephfs/test01/test.1
-rw-r—r-- 1 root root 2 Jan 27 19:09 /cephfs/test01/test.1
# chattr +i /cephfs/test01/test.1
chattr: Inappropriate ioctl for device while reading flags on /cephfs/test01/test.1

I also tried it using the FUSE interface:

# ceph-fuse -m 172.16.30.10 /cephfs/fuse01/
ceph-fuse[5326]: starting ceph client
2015-01-27 19:54:59.002563 7f6f8fbcb7c0 -1 init, newargv = 0x2ec2be0 newargc=11
ceph-fuse[5326]: starting fuse
# mount | grep ceph
ceph-fuse on /cephfs/fuse01 type fuse.ceph-fuse (rw,nosuid,nodev,allow_other,default_permissions)
# echo 1 > /cephfs/fuse01/test02.dat
# chattr +i   /cephfs/fuse01/test02.dat
chattr: Invalid argument while reading flags on /cephfs/fuse01/test02.dat

Eric

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