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Date:   Thu, 14 May 2020 08:43:35 +0200
From:   Jan Kara <>
To:     Ira Weiny <>
Cc:     Jan Kara <>,,
        Andreas Dilger <>,
        "Theodore Y. Ts'o" <>,
        Al Viro <>,
        Dan Williams <>,
        Dave Chinner <>,
        Christoph Hellwig <>, Jeff Moyer <>,
        "Darrick J. Wong" <>,,
Subject: Re: [PATCH 8/9] fs/ext4: Introduce DAX inode flag

On Wed 13-05-20 14:41:55, Ira Weiny wrote:
> On Wed, May 13, 2020 at 04:47:06PM +0200, Jan Kara wrote:
> >
> > So I think you'll have to check
> > whether DAX flag is being changed,
> ext4_dax_dontcache() does check if the flag is being changed.

Yes, but if you call it after inode flags change, you cannot determine that
just from flags and EXT4_I(inode)->i_flags. So that logic needs to change.


Jan Kara <>

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