Target region directories of DAMON sysfs interface should contain no overlap and sorted by the address, but not clearly documented. Actually, a user had an issue[1] due to the poor documentation. Add clear description of it on the usage document. [1] https://lore.kernel.org/damon/CAEZ6=UNUcH2BvJj++OrT=XQLdkidU79wmCO=tantSOB36pPNTg@xxxxxxxxxxxxxx/ Reported-by: Vinicius Petrucci <vpetrucci@xxxxxxxxx> Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> --- Documentation/admin-guide/mm/damon/usage.rst | 3 +++ 1 file changed, 3 insertions(+) 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/ --------------------- -- 2.25.1
