Add support for the chattr +i command (immutable file)
To add an additional layer of protection for files I would like to see
support for the chattr +i command added for files stored in cephfs
Multiple emails were posted to the ceph mail list on this subject including:
Of the suggestions made on the mail list, I like Sage's where he states:
It seems like we should be checking S_IMMUTABLE in the MDS and,
when set, refusing to issue write caps.
Which I think is better then just trusting the clients to do the