From: Felipe Monteiro de Carvalho <felipemonteiro.carvalho@gmail.com>
Subject: Re: File permissions in ext4
Date: Thu, 1 Aug 2013 15:23:45 +0200
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On Thu, Aug 1, 2013 at 3:21 PM, Vyacheslav Dubeyko <slava@dubeyko.com> wrote:
> config EXT4_FS_POSIX_ACL
>           POSIX Access Control Lists (ACLs) support permissions for users and
>           groups beyond the owner/group/world scheme.
>
>           To learn more about Access Control Lists, visit the POSIX ACLs for
>           Linux website <http://acl.bestbits.at/>.

Aha, so it is just a more advanced version of the permissions. But I
suppose that i_mode will always be valid even if the file system also
support ACL, correct?

-- 
Felipe Monteiro de Carvalho