linux-kernel - Re: [PATCH v5 13/14] ntfs: add Kconfig and Makefile

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Message-ID: <CAKYAXd9dz_OBkMWcS5OtfU0BhEA1r4hMqtWJ_u+qWYK4Nwk+7Q@mail.gmail.com>
Date: Sun, 18 Jan 2026 14:08:01 +0900
From: Namjae Jeon <linkinjeon@...nel.org>
To: Christoph Hellwig <hch@....de>
Cc: viro@...iv.linux.org.uk, brauner@...nel.org, tytso@....edu, 
	willy@...radead.org, jack@...e.cz, djwong@...nel.org, josef@...icpanda.com, 
	sandeen@...deen.net, rgoldwyn@...e.com, xiang@...nel.org, dsterba@...e.com, 
	pali@...nel.org, ebiggers@...nel.org, neil@...wn.name, amir73il@...il.com, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	iamjoonsoo.kim@....com, cheol.lee@....com, jay.sim@....com, gunho.lee@....com
Subject: Re: [PATCH v5 13/14] ntfs: add Kconfig and Makefile

On Fri, Jan 16, 2026 at 6:30 PM Christoph Hellwig <hch@....de> wrote:
>
> > +config NTFS_FS_POSIX_ACL
> > +     bool "NTFS POSIX Access Control Lists"
> > +     depends on NTFS_FS
> > +     select FS_POSIX_ACL
> > +     help
> > +       POSIX Access Control Lists (ACLs) support additional access rights
> > +       for users and groups beyond the standard owner/group/world scheme,
> > +       and this option selects support for ACLs specifically for ntfs
> > +       filesystems.
> > +       NOTE: this is linux only feature. Windows will ignore these ACLs.
> > +
> > +       If you don't know what Access Control Lists are, say N.
>
> This looks like a new feature over the old driver.  What is the
> use case for it?
The POSIX ACLs support is intended to ensure functional parity and ABI
compatibility with the existing ntfs3 driver, which already supports
this feature. Since this ntfs aims to be a replacement for ntfs3,
providing the same mount options and permission model is essential for
a seamless user transition. Furthermore, By enabling this feature, we
can pass more xfstests test cases.
>
> > @@ -0,0 +1,13 @@
> > +# Makefile for the ntfs filesystem support.
> > +#
>
> I'd drop this, it's pretty obvious :)
Okay, I will drop it.
Thanks!
>