linux-kernel - Re: [PATCH v2 3/6] fs/ntfs3: Use new api for mounting

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Message-ID: <20210824082157.umppqksjl2vvyd53@kari-VirtualBox>
Date:   Tue, 24 Aug 2021 11:21:57 +0300
From:   Kari Argillander <kari.argillander@...il.com>
To:     Christoph Hellwig <hch@....de>
Cc:     Konstantin Komarov <almaz.alexandrovich@...agon-software.com>,
        ntfs3@...ts.linux.dev, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org,
        Pali Rohár <pali@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Christian Brauner <christian.brauner@...ntu.com>
Subject: Re: [PATCH v2 3/6] fs/ntfs3: Use new api for mounting

On Tue, Aug 24, 2021 at 10:03:02AM +0200, Christoph Hellwig wrote:
> > +	/*
> > +	 * TODO: We should probably check some mount options does
> > +	 * they all work after remount. Example can we really change
> > +	 * nls. Remove this comment when all testing is done or
> > +	 * even better xfstest is made for it.
> > +	 */
> 
> Instead of the TODO I would suggest a prep patch to drop changing of
> any options in remount before this one and then only add them back
> as needed and tested.

This could be good option. I have actually tested nls and it will be
problem so we definitely drop that. I will wait what Konstantin has
to say about other.

> The mechanics of the conversion look good to me.

I have made quite few changes to make this series better and will
send v3 in the near future.

Main change is that we won't allocate sbi when remount. We can
allocate just options. Also won't let nls/iocharset change.