linux-kernel - Re: [PATCH v3 03/25] dax: Document dax dev range tuple

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Message-ID: <c39d5638-f72c-4001-85f8-0ba81661638a@intel.com>
Date: Fri, 16 Aug 2024 13:58:44 -0700
From: Dave Jiang <dave.jiang@...el.com>
To: Ira Weiny <ira.weiny@...el.com>, Fan Ni <fan.ni@...sung.com>,
 Jonathan Cameron <Jonathan.Cameron@...wei.com>,
 Navneet Singh <navneet.singh@...el.com>, Chris Mason <clm@...com>,
 Josef Bacik <josef@...icpanda.com>, David Sterba <dsterba@...e.com>,
 Petr Mladek <pmladek@...e.com>, Steven Rostedt <rostedt@...dmis.org>,
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
 Rasmus Villemoes <linux@...musvillemoes.dk>,
 Sergey Senozhatsky <senozhatsky@...omium.org>,
 Jonathan Corbet <corbet@....net>, Andrew Morton <akpm@...ux-foundation.org>
Cc: Dan Williams <dan.j.williams@...el.com>,
 Davidlohr Bueso <dave@...olabs.net>,
 Alison Schofield <alison.schofield@...el.com>,
 Vishal Verma <vishal.l.verma@...el.com>, linux-btrfs@...r.kernel.org,
 linux-cxl@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-doc@...r.kernel.org, nvdimm@...ts.linux.dev
Subject: Re: [PATCH v3 03/25] dax: Document dax dev range tuple



On 8/16/24 7:44 AM, Ira Weiny wrote:
> The device DAX structure is being enhanced to track additional DCD
> information.
> 
> The current range tuple was not fully documented.  Document it prior to
> adding information for DC.
> 
> Suggested-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> Signed-off-by: Ira Weiny <ira.weiny@...el.com>

Reviewed-by: Dave Jiang <dave.jiang@...el.com>
> 
> ---
> Changes:
> [iweiny: move to start of series]
> ---
>  drivers/dax/dax-private.h | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h
> index 446617b73aea..ccde98c3d4e2 100644
> --- a/drivers/dax/dax-private.h
> +++ b/drivers/dax/dax-private.h
> @@ -58,7 +58,10 @@ struct dax_mapping {
>   * @dev - device core
>   * @pgmap - pgmap for memmap setup / lifetime (driver owned)
>   * @nr_range: size of @ranges
> - * @ranges: resource-span + pgoff tuples for the instance
> + * @ranges: range tuples of memory used
> + * @pgoff: page offset
> + * @range: resource-span
> + * @mapping: device to assist in interrogating the range layout
>   */
>  struct dev_dax {
>  	struct dax_region *region;
>