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.
Fixes: 9b7f9322a530 ("Docs/admin-guide/mm/damon/usage: document DAMOS filters of sysfs")
Closes: https://lore.kernel.org/r/20240317191358.97578-1-sj@xxxxxxxxxx
Cc: <stable@xxxxxxxxxxxxxxx> # 6.3.x
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
---
Documentation/admin-guide/mm/damon/usage.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index 69bc8fabf378..3ce3f0aaa1d5 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -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.
--
2.39.2
