linux-ext4 - Re: [PATCH V9 11/11] Documentation/dax: Update Usage section

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Date:   Tue, 21 Apr 2020 14:49:53 -0700
From:   Ira Weiny <ira.weiny@...el.com>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     linux-kernel@...r.kernel.org, linux-xfs@...r.kernel.org,
        Al Viro <viro@...iv.linux.org.uk>, Jan Kara <jack@...e.cz>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>,
        Christoph Hellwig <hch@....de>,
        "Theodore Y. Ts'o" <tytso@....edu>, Jeff Moyer <jmoyer@...hat.com>,
        linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH V9 11/11] Documentation/dax: Update Usage section

On Tue, Apr 21, 2020 at 01:34:23PM -0700, Darrick J. Wong wrote:
> On Tue, Apr 21, 2020 at 12:17:53PM -0700, ira.weiny@...el.com wrote:
> > From: Ira Weiny <ira.weiny@...el.com>
> > 
> > Update the Usage section to reflect the new individual dax selection
> > functionality.
> > 

[snip]

> > +
> > +The default state is 'inode'.  Given underlying media support, the following
> > +algorithm is used to determine the effective mode of the file S_DAX on a
> > +capable device.
> > +
> > +	S_DAX = FS_XFLAG_DAX;
> > +
> > +	if (dax_mount == "always")
> > +		S_DAX = true;
> > +	else if (dax_mount == "off"
> 
> Missing trailing parenthesis here.

Done.

> 
> > +		S_DAX = false;
> > +
> > +To reiterate: Setting, and inheritance, continues to affect FS_XFLAG_DAX even
> > +while the file system is mounted with a dax override.  However, in-core inode
> > +state (S_DAX) will continue to be overridden until the filesystem is remounted
> > +with dax=inode and the inode is evicted."
> 
> Trailing double-quote here.

Fixed done.

> 
> Otherwise, this looks good to me.

thanks,
Ira