Re: [PATCH 15/18] dax: Allow DAX code to replace exceptional entries

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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@xxxxxxx>

Reviewed-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
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