linux-ext4 - Re: [PATCH 14/18] dax: Define DAX lock bit for radix tree exceptional entry

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Message-ID: <20160429200345.GH5888@linux.intel.com>
Date:	Fri, 29 Apr 2016 14:03:45 -0600
From:	Ross Zwisler <ross.zwisler@...ux.intel.com>
To:	Jan Kara <jack@...e.cz>
Cc:	linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
	linux-mm@...ck.org, Ross Zwisler <ross.zwisler@...ux.intel.com>,
	Dan Williams <dan.j.williams@...el.com>,
	linux-nvdimm@...ts.01.org, Matthew Wilcox <willy@...ux.intel.com>
Subject: Re: [PATCH 14/18] dax: Define DAX lock bit for radix tree
 exceptional entry

On Mon, Apr 18, 2016 at 11:35:37PM +0200, Jan Kara wrote:
> We will use lowest available bit in the radix tree exceptional entry for
> locking of the entry. Define it. Also clean up definitions of DAX entry
> type bits in DAX exceptional entries to use defined constants instead of
> hardcoding numbers and cleanup checking of these bits to not rely on how
> other bits in the entry are set.
> 
> Signed-off-by: Jan Kara <jack@...e.cz>

Reviewed-by: Ross Zwisler <ross.zwisler@...ux.intel.com>
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