git.ipfire.org Git - thirdparty/kernel/stable-queue.git/blob

   1 From da2a061888883e067e8e649d086df35c92c760a7 Mon Sep 17 00:00:00 2001
   2 From: SeongJae Park <sj@kernel.org>
   3 Date: Fri, 3 May 2024 11:03:14 -0700
   4 Subject: Docs/admin-guide/mm/damon/usage: fix wrong example of DAMOS filter matching sysfs file
   5
   6 From: SeongJae Park <sj@kernel.org>
   7
   8 commit da2a061888883e067e8e649d086df35c92c760a7 upstream.
   9
  10 The example usage of DAMOS filter sysfs files, specifically the part of
  11 'matching' file writing for memcg type filter, is wrong.  The intention is
  12 to exclude pages of a memcg that already getting enough care from a given
  13 scheme, but the example is setting the filter to apply the scheme to only
  14 the pages of the memcg.  Fix it.
  15
  16 Link: https://lkml.kernel.org/r/20240503180318.72798-7-sj@kernel.org
  17 Fixes: 9b7f9322a530 ("Docs/admin-guide/mm/damon/usage: document DAMOS filters of sysfs")
  18 Closes: https://lore.kernel.org/r/20240317191358.97578-1-sj@kernel.org
  19 Signed-off-by: SeongJae Park <sj@kernel.org>
  20 Cc: <stable@vger.kernel.org>    [6.3.x]
  21 Cc: Jonathan Corbet <corbet@lwn.net>
  22 Cc: Shuah Khan <shuah@kernel.org>
  23 Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
  24 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  25 ---
  26  Documentation/admin-guide/mm/damon/usage.rst |    2 +-
  27  1 file changed, 1 insertion(+), 1 deletion(-)
  28
  29 --- a/Documentation/admin-guide/mm/damon/usage.rst
  30 +++ b/Documentation/admin-guide/mm/damon/usage.rst
  31 @@ -389,7 +389,7 @@ pages of all memory cgroups except ``/ha
  32      # # further filter out all cgroups except one at '/having_care_already'
  33      echo memcg > 1/type
  34      echo /having_care_already > 1/memcg_path
  35 -    echo N > 1/matching
  36 +    echo Y > 1/matching
  37
  38  Note that ``anon`` and ``memcg`` filters are currently supported only when
  39  ``paddr`` `implementation <sysfs_contexts>` is being used.