Re: [PATCH v8 5/9] fsdax: Introduce dax_lock_mapping_entry()

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On Thu, Dec 02, 2021 at 04:48:52PM +0800, Shiyang Ruan wrote:
> The current dax_lock_page() locks dax entry by obtaining mapping and
> index in page.  To support 1-to-N RMAP in NVDIMM, we need a new function
> to lock a specific dax entry corresponding to this file's mapping,index.
> And BTW, output the page corresponding to the specific dax entry for
> caller use.

s/BTW, //g

>  /*
> - * dax_lock_mapping_entry - Lock the DAX entry corresponding to a page
> + * dax_lock_page - Lock the DAX entry corresponding to a page
>   * @page: The page whose entry we want to lock
>   *
>   * Context: Process context.

This should probably got into a separate trivial fix.

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>



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