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Fix target_memcg to the memcg obtained by folio_memcg(folio). Signed-off-by: Zhiguo Jiang Nacked-by: Johannes Weiner --- include/linux/swap.h | 2 +- mm/vmscan.c | 11 +++++------ mm/workingset.c | 6 +++--- 3 files changed, 9 insertions(+), 10 deletions(-) mode change 100644 => 100755 include/linux/swap.h mode change 100644 => 100755 mm/vmscan.c mode change 100644 => 100755 mm/workingset.c diff --git a/include/linux/swap.h b/include/linux/swap.h index 41e4b484bc34..4de61f158903 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -346,7 +346,7 @@ static inline swp_entry_t page_swap_entry(struct page *page) /* linux/mm/workingset.c */ bool workingset_test_recent(void *shadow, bool file, bool *workingset); void workingset_age_nonresident(struct lruvec *lruvec, unsigned long nr_pages); -void *workingset_eviction(struct folio *folio, struct mem_cgroup *target_memcg); +void *workingset_eviction(struct folio *folio); void workingset_refault(struct folio *folio, void *shadow); void workingset_activation(struct folio *folio); diff --git a/mm/vmscan.c b/mm/vmscan.c index 91e7d334a7ca..8a1fbdaca042 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -693,7 +693,7 @@ static pageout_t pageout(struct folio *folio, struct address_space *mapping, * gets returned with a refcount of 0. */ static int __remove_mapping(struct address_space *mapping, struct folio *folio, - bool reclaimed, struct mem_cgroup *target_memcg) + bool reclaimed) { int refcount; void *shadow = NULL; @@ -742,7 +742,7 @@ static int __remove_mapping(struct address_space *mapping, struct folio *folio, swp_entry_t swap = folio->swap; if (reclaimed && !mapping_exiting(mapping)) - shadow = workingset_eviction(folio, target_memcg); + shadow = workingset_eviction(folio); __delete_from_swap_cache(folio, swap, shadow); mem_cgroup_swapout(folio, swap); xa_unlock_irq(&mapping->i_pages); @@ -769,7 +769,7 @@ static int __remove_mapping(struct address_space *mapping, struct folio *folio, */ if (reclaimed && folio_is_file_lru(folio) && !mapping_exiting(mapping) && !dax_mapping(mapping)) - shadow = workingset_eviction(folio, target_memcg); + shadow = workingset_eviction(folio); __filemap_remove_folio(folio, shadow); xa_unlock_irq(&mapping->i_pages); if (mapping_shrinkable(mapping)) @@ -803,7 +803,7 @@ static int __remove_mapping(struct address_space *mapping, struct folio *folio, */ long remove_mapping(struct address_space *mapping, struct folio *folio) { - if (__remove_mapping(mapping, folio, false, NULL)) { + if (__remove_mapping(mapping, folio, false)) { /* * Unfreezing the refcount with 1 effectively * drops the pagecache ref for us without requiring another @@ -1417,8 +1417,7 @@ static unsigned int shrink_folio_list(struct list_head *folio_list, */ count_vm_events(PGLAZYFREED, nr_pages); count_memcg_folio_events(folio, PGLAZYFREED, nr_pages); - } else if (!mapping || !__remove_mapping(mapping, folio, true, - sc->target_mem_cgroup)) + } else if (!mapping || !__remove_mapping(mapping, folio, true)) goto keep_locked; folio_unlock(folio); diff --git a/mm/workingset.c b/mm/workingset.c index 226012974328..f29396d4bf75 --- a/mm/workingset.c +++ b/mm/workingset.c @@ -372,15 +372,15 @@ void workingset_age_nonresident(struct lruvec *lruvec, unsigned long nr_pages) /** * workingset_eviction - note the eviction of a folio from memory - * @target_memcg: the cgroup that is causing the reclaim * @folio: the folio being evicted * * Return: a shadow entry to be stored in @folio->mapping->i_pages in place * of the evicted @folio so that a later refault can be detected. */ -void *workingset_eviction(struct folio *folio, struct mem_cgroup *target_memcg) +void *workingset_eviction(struct folio *folio) { struct pglist_data *pgdat = folio_pgdat(folio); + struct mem_cgroup *memcg = folio_memcg(folio); unsigned long eviction; struct lruvec *lruvec; int memcgid; @@ -393,7 +393,7 @@ void *workingset_eviction(struct folio *folio, struct mem_cgroup *target_memcg) if (lru_gen_enabled()) return lru_gen_eviction(folio); - lruvec = mem_cgroup_lruvec(target_memcg, pgdat); + lruvec = mem_cgroup_lruvec(memcg, pgdat); /* XXX: target_memcg can be NULL, go through lruvec */ memcgid = mem_cgroup_id(lruvec_memcg(lruvec)); eviction = atomic_long_read(&lruvec->nonresident_age);