The patch titled
Subject: mm-mglru-rework-workingset-protection-fix
has been added to the -mm mm-unstable branch. Its filename is
mm-mglru-rework-workingset-protection-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-mglru-rework-workingset-protection-fix.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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The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Yu Zhao <yuzhao@xxxxxxxxxx>
Subject: mm-mglru-rework-workingset-protection-fix
Date: Tue, 24 Dec 2024 12:04:44 -0700
Revert change to folio_mark_accessed() that unncessarily dirties cache
lines shared between different cores.
Link: https://lkml.kernel.org/r/Z2sFzKmHPI0kI_fq@xxxxxxxxxx
Signed-off-by: Yu Zhao <yuzhao@xxxxxxxxxx>
Tested-by: kernel test robot <oliver.sang@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swap.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/mm/swap.c~mm-mglru-rework-workingset-protection-fix
+++ a/mm/swap.c
@@ -395,7 +395,8 @@ static void lru_gen_inc_refs(struct foli
do {
if ((old_flags & LRU_REFS_MASK) == LRU_REFS_MASK) {
- folio_set_workingset(folio);
+ if (!folio_test_workingset(folio))
+ folio_set_workingset(folio);
return;
}
_
Patches currently in -mm which might be from yuzhao@xxxxxxxxxx are
mm-mglru-clean-up-workingset.patch
mm-mglru-optimize-deactivation.patch
mm-mglru-rework-aging-feedback.patch
mm-mglru-rework-type-selection.patch
mm-mglru-rework-refault-detection.patch
mm-mglru-rework-workingset-protection.patch
mm-mglru-rework-workingset-protection-fix.patch
