The patch titled
Subject: mm/damon/paddr: implement damon_folio_mkold()
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-paddr-implement-damon_folio_mkold.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-paddr-implement-damon_folio_mkold.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/paddr: implement damon_folio_mkold()
Date: Fri, 26 Apr 2024 12:52:41 -0700
damon_pa_mkold() receives physical address, get the folio covering the
address, and makes the folio as old. A following commit will reuse the
internal logic for marking a given folio as old. To avoid duplication of
the code, split the internal logic. Also, change the rmap walker
function's name from __damon_pa_mkold() to damon_folio_mkold_one(),
following the change of the caller's name and the naming rule that more
commonly used by other rmap walkers.
Link: https://lkml.kernel.org/r/20240426195247.100306-3-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Tested-by: Honggyu Kim <honggyu.kim@xxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/paddr.c | 27 ++++++++++++++++-----------
1 file changed, 16 insertions(+), 11 deletions(-)
--- a/mm/damon/paddr.c~mm-damon-paddr-implement-damon_folio_mkold
+++ a/mm/damon/paddr.c
@@ -16,8 +16,8 @@
#include "../internal.h"
#include "ops-common.h"
-static bool __damon_pa_mkold(struct folio *folio, struct vm_area_struct *vma,
- unsigned long addr, void *arg)
+static bool damon_folio_mkold_one(struct folio *folio,
+ struct vm_area_struct *vma, unsigned long addr, void *arg)
{
DEFINE_FOLIO_VMA_WALK(pvmw, folio, vma, addr, 0);
@@ -31,33 +31,38 @@ static bool __damon_pa_mkold(struct foli
return true;
}
-static void damon_pa_mkold(unsigned long paddr)
+static void damon_folio_mkold(struct folio *folio)
{
- struct folio *folio = damon_get_folio(PHYS_PFN(paddr));
struct rmap_walk_control rwc = {
- .rmap_one = __damon_pa_mkold,
+ .rmap_one = damon_folio_mkold_one,
.anon_lock = folio_lock_anon_vma_read,
};
bool need_lock;
- if (!folio)
- return;
-
if (!folio_mapped(folio) || !folio_raw_mapping(folio)) {
folio_set_idle(folio);
- goto out;
+ return;
}
need_lock = !folio_test_anon(folio) || folio_test_ksm(folio);
if (need_lock && !folio_trylock(folio))
- goto out;
+ return;
rmap_walk(folio, &rwc);
if (need_lock)
folio_unlock(folio);
-out:
+}
+
+static void damon_pa_mkold(unsigned long paddr)
+{
+ struct folio *folio = damon_get_folio(PHYS_PFN(paddr));
+
+ if (!folio)
+ return;
+
+ damon_folio_mkold(folio);
folio_put(folio);
}
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
mm-damon-paddr-implement-damon_folio_young.patch
mm-damon-paddr-implement-damon_folio_mkold.patch
mm-damon-add-damos-filter-type-young.patch
mm-damon-paddr-implement-damos-filter-type-young.patch
docs-mm-damon-design-document-young-page-type-damos-filter.patch
docs-admin-guide-mm-damon-usage-update-for-young-page-type-damos-filter.patch
docs-abi-damon-update-for-youg-page-type-damos-filter.patch
