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| author | Barry Song <v-songbaohua@oppo.com> | 2024-02-25 01:47:51 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-03-05 04:01:17 +0300 |
| commit | ff0b5905a9c9712f36fb7f9dd1be17564483b5d4 (patch) | |
| tree | 1dfc9e41ea5fe5df41cc94cf10f49e9e31000cbc /Documentation/mm | |
| parent | 8cc92a67932febc3f84cf6b3c7d08f27a1b2ebc3 (diff) | |
| download | linux-ff0b5905a9c9712f36fb7f9dd1be17564483b5d4.tar.xz | |
Docs/mm/damon/design: remove the details for pageout as paddr doesn't use MADV_PAGEOUT
The doc needs a 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.
Link: https://lkml.kernel.org/r/20240224224751.4673-1-21cnbao@gmail.com
Signed-off-by: Barry Song <v-songbaohua@oppo.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'Documentation/mm')
| -rw-r--r-- | Documentation/mm/damon/design.rst | 2 |
1 files changed, 1 insertions, 1 deletions
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. |