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-rw-r--r--Documentation/admin-guide/mm/damon/usage.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index b47b0cbbd491..89d9a4f75a29 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -235,6 +235,9 @@ In each region directory, you will find two files (``start`` and ``end``). You
can set and get the start and end addresses of the initial monitoring target
region by writing to and reading from the files, respectively.
+Each region should not overlap with others. ``end`` of directory ``N`` should
+be equal or smaller than ``start`` of directory ``N+1``.
+
contexts/<N>/schemes/
---------------------