The patch titled
Subject: mm: multi-gen LRU: improve lru_gen_exit_memcg()
has been added to the -mm mm-unstable branch. Its filename is
mm-multi-gen-lru-improve-lru_gen_exit_memcg.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-multi-gen-lru-improve-lru_gen_exit_memcg.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: "T.J. Alumbaugh" <talumbau@xxxxxxxxxx>
Subject: mm: multi-gen LRU: improve lru_gen_exit_memcg()
Date: Wed, 18 Jan 2023 00:18:25 +0000
Add warnings and poison ->next.
Link: https://lkml.kernel.org/r/20230118001827.1040870-6-talumbau@xxxxxxxxxx
Signed-off-by: T.J. Alumbaugh <talumbau@xxxxxxxxxx>
Cc: Yu Zhao <yuzhao@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/vmscan.c~mm-multi-gen-lru-improve-lru_gen_exit_memcg
+++ a/mm/vmscan.c
@@ -6168,12 +6168,17 @@ void lru_gen_exit_memcg(struct mem_cgrou
int i;
int nid;
+ VM_WARN_ON_ONCE(!list_empty(&memcg->mm_list.fifo));
+
for_each_node(nid) {
struct lruvec *lruvec = get_lruvec(memcg, nid);
+ VM_WARN_ON_ONCE(lruvec->mm_state.nr_walkers);
VM_WARN_ON_ONCE(memchr_inv(lruvec->lrugen.nr_pages, 0,
sizeof(lruvec->lrugen.nr_pages)));
+ lruvec->lrugen.list.next = LIST_POISON1;
+
for (i = 0; i < NR_BLOOM_FILTERS; i++) {
bitmap_free(lruvec->mm_state.filters[i]);
lruvec->mm_state.filters[i] = NULL;
_
Patches currently in -mm which might be from talumbau@xxxxxxxxxx are
mm-multi-gen-lru-section-for-working-set-protection.patch
mm-multi-gen-lru-section-for-rmap-pt-walk-feedback.patch
mm-multi-gen-lru-section-for-bloom-filters.patch
mm-multi-gen-lru-section-for-memcg-lru.patch
mm-multi-gen-lru-improve-lru_gen_exit_memcg.patch
mm-multi-gen-lru-improve-walk_pmd_range.patch
mm-multi-gen-lru-simplify-lru_gen_look_around.patch
