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Date:	Fri, 29 Apr 2016 14:29:26 -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 15/18] dax: Allow DAX code to replace exceptional entries

On Mon, Apr 18, 2016 at 11:35:38PM +0200, Jan Kara wrote:
> Currently we forbid page_cache_tree_insert() to replace exceptional radix
> tree entries for DAX inodes. However to make DAX faults race free we will
> lock radix tree entries and when hole is created, we need to replace
> such locked radix tree entry with a hole page. So modify
> page_cache_tree_insert() to allow that.
> 
> Signed-off-by: Jan Kara <jack@...e.cz>

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