From: Barry Song <v-songbaohua@xxxxxxxx> The doc needs fix. As only in the case of virtual address, we are calling madvise() with MADV_PAGEOUT. But in the case of physical address, we are calling reclaim_pages() directly. MADV_PAGEOUT on virtual address is much more aggresive to reclaim memory compared to reclaim_pages() on paddr region. This patch removes the details so that the description can apply to both cases. And we don't need to couple with the implementation details. Cc: SeongJae Park <sj@xxxxxxxxxx> Cc: Minchan Kim <minchan@xxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Signed-off-by: Barry Song <v-songbaohua@xxxxxxxx> --- -v2: decouple with the details according to SeongJae -v1: https://lore.kernel.org/linux-mm/20240224215023.5271-1-21cnbao@xxxxxxxxx/ Documentation/mm/damon/design.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/design.rst index 8c89d26f0baa..5620aab9b385 100644 --- a/Documentation/mm/damon/design.rst +++ b/Documentation/mm/damon/design.rst @@ -315,7 +315,7 @@ that supports each action are as below. Supported by ``vaddr`` and ``fvaddr`` operations set. - ``cold``: Call ``madvise()`` for the region with ``MADV_COLD``. Supported by ``vaddr`` and ``fvaddr`` operations set. - - ``pageout``: Call ``madvise()`` for the region with ``MADV_PAGEOUT``. + - ``pageout``: Reclaim the region. Supported by ``vaddr``, ``fvaddr`` and ``paddr`` operations set. - ``hugepage``: Call ``madvise()`` for the region with ``MADV_HUGEPAGE``. Supported by ``vaddr`` and ``fvaddr`` operations set. -- 2.34.1
