6.9-stable review patch. If anyone has any objections, please let me know.
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From: SeongJae Park sj@kernel.org
commit da2a061888883e067e8e649d086df35c92c760a7 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/admin-guide/mm/damon/usage.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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 ``/ha # # 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.