Docs/admin-guide/mm/damon/usage: fix wrong example of DAMOS filter matching sysfs...
authorSeongJae Park <sj@kernel.org>
Fri, 3 May 2024 18:03:14 +0000 (11:03 -0700)
committerAndrew Morton <akpm@linux-foundation.org>
Sat, 11 May 2024 22:41:34 +0000 (15:41 -0700)
The example usage of DAMOS filter sysfs files, specifically the part of
'matching' file writing for memcg type filter, is wrong.  The intention is
to exclude pages of a memcg that already getting enough care from a given
scheme, but the example is setting the filter to apply the scheme to only
the pages of the memcg.  Fix it.

Link: https://lkml.kernel.org/r/20240503180318.72798-7-sj@kernel.org
Fixes: 9b7f9322a530 ("Docs/admin-guide/mm/damon/usage: document DAMOS filters of sysfs")
Closes: https://lore.kernel.org/r/20240317191358.97578-1-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org> [6.3.x]
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Documentation/admin-guide/mm/damon/usage.rst

index 69bc8fabf3781c3ca28206180367554ac22ccd60..3ce3f0aaa1d5b311138646c0aa6011da2a7cc15c 100644 (file)
@@ -434,7 +434,7 @@ pages of all memory cgroups except ``/having_care_already``.::
     # # further filter out all cgroups except one at '/having_care_already'
     echo memcg > 1/type
     echo /having_care_already > 1/memcg_path
-    echo N > 1/matching
+    echo Y > 1/matching
 
 Note that ``anon`` and ``memcg`` filters are currently supported only when
 ``paddr`` :ref:`implementation <sysfs_context>` is being used.