Mount options with ecryptfs encrypted home

view story

http://unix.stackexchange.com – I'm using ecryptfs for an encrypted home directory. I would like to try out the mount option "ecryptfs_xattr" on my encrypted home directory, because it will probably improve performance. Can I specify this option somewhere, and still have it decrypt the home when I log in? (I assume I have to re-create the encrypted home directory, that's no problem) (HowTos)