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From: SeongJae Park <sj@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: SeongJae Park <sj@kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	damon@lists.linux.dev,
	linux-mm@kvack.org,
	linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: [PATCH 06/10] Docs/admin-guide/mm/damon/usage: fix wrong example of DAMOS filter matching sysfs file
Date: Fri,  3 May 2024 11:03:14 -0700
Message-Id: <20240503180318.72798-7-sj@kernel.org>
In-Reply-To: <20240503180318.72798-1-sj@kernel.org>
References: <20240503180318.72798-1-sj@kernel.org>
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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@kernel.org
Cc: <stable@vger.kernel.org> # 6.3.x
Signed-off-by: SeongJae Park <sj@kernel.org>
---
 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