linux-ext4 - Re: [PATCH v5 14/17] dax: move RADIX_DAX

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Date:   Mon, 10 Oct 2016 17:50:29 +0200
From:   Christoph Hellwig <hch@....de>
To:     Ross Zwisler <ross.zwisler@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org, Theodore Ts'o <tytso@....edu>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Hellwig <hch@....de>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>, Jan Kara <jack@...e.com>,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-mm@...ck.org, linux-nvdimm@...ts.01.org,
        linux-xfs@...r.kernel.org
Subject: Re: [PATCH v5 14/17] dax: move RADIX_DAX_* defines to dax.h

On Fri, Oct 07, 2016 at 03:09:01PM -0600, Ross Zwisler wrote:
> The RADIX_DAX_* defines currently mostly live in fs/dax.c, with just
> RADIX_DAX_ENTRY_LOCK being in include/linux/dax.h so it can be used in
> mm/filemap.c.  When we add PMD support, though, mm/filemap.c will also need
> access to the RADIX_DAX_PTE type so it can properly construct a 4k sized
> empty entry.
> 
> Instead of shifting the defines between dax.c and dax.h as they are
> individually used in other code, just move them wholesale to dax.h so
> they'll be available when we need them.

Looks fine, assuming that the macros get cleaned up in the next patches..

Reviewed-by: Christoph Hellwig <hch@....de>
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