[PATCH] dm-statistics: update documentation

[PATCH] dm-statistics: update documentation

[Mikulas Patocka]

Hi

This is the documentation update for statistics, as suggested by Alasdair.

Mikulas


From: Mikulas Patocka <mpatocka@redhat.com>

Update documentation so that program id must not be a number.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 Documentation/device-mapper/statistics.txt |    3 +++
 1 file changed, 3 insertions(+)

Index: linux-dm/Documentation/device-mapper/statistics.txt
===================================================================
--- linux-dm.orig/Documentation/device-mapper/statistics.txt	2015-06-15 23:40:37.000000000 +0200
+++ linux-dm/Documentation/device-mapper/statistics.txt	2015-06-16 00:03:13.000000000 +0200
@@ -85,6 +85,9 @@ Messages
 	  created and ignore those created by others.
 	  The kernel returns this string back in the output of
 	  @stats_list message, but it doesn't use it for anything else.
+	  If we omit the number of optional arguments, program id must not
+	  be a number, otherwise it would be interpreted as the number of
+	  optional arguments.
 
 	<aux_data>
 	  An optional parameter.  A word that provides auxiliary data

Re: dm-statistics: update documentation

[Mike Snitzer]

On Mon, Jun 15 2015 at  6:04pm -0400,
Mikulas Patocka <mpatocka@redhat.com> wrote:

> Hi
> 
> This is the documentation update for statistics, as suggested by Alasdair.
> 
> Mikulas

Thanks, I think he also mentioned how it'd be nice for a dmsetup
example showing the histogram output?  Alasdair, is that right?