[PATCH RFC 04/28] mm: rename unlock_page_lruvec_irq and its variants
From: Muchun Song
Date: Mon Apr 14 2025 - 22:48:34 EST
It is inappropriate to use folio_lruvec_lock() variants in conjunction with
unlock_page_lruvec() variants, as this involves the inconsistent operation of
locking a folio while unlocking a page. To rectify this, the functions
unlock_page_lruvec{_irq, _irqrestore} are renamed to lruvec_unlock{_irq,
_irqrestore}.
Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Acked-by: Roman Gushchin <roman.gushchin@xxxxxxxxx>
---
include/linux/memcontrol.h | 10 +++++-----
mm/compaction.c | 14 +++++++-------
mm/huge_memory.c | 2 +-
mm/mlock.c | 2 +-
mm/swap.c | 12 ++++++------
mm/vmscan.c | 4 ++--
6 files changed, 22 insertions(+), 22 deletions(-)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 53364526d877..a045819bcf40 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1510,17 +1510,17 @@ static inline struct lruvec *parent_lruvec(struct lruvec *lruvec)
return mem_cgroup_lruvec(memcg, lruvec_pgdat(lruvec));
}
-static inline void unlock_page_lruvec(struct lruvec *lruvec)
+static inline void lruvec_unlock(struct lruvec *lruvec)
{
spin_unlock(&lruvec->lru_lock);
}
-static inline void unlock_page_lruvec_irq(struct lruvec *lruvec)
+static inline void lruvec_unlock_irq(struct lruvec *lruvec)
{
spin_unlock_irq(&lruvec->lru_lock);
}
-static inline void unlock_page_lruvec_irqrestore(struct lruvec *lruvec,
+static inline void lruvec_unlock_irqrestore(struct lruvec *lruvec,
unsigned long flags)
{
spin_unlock_irqrestore(&lruvec->lru_lock, flags);
@@ -1542,7 +1542,7 @@ static inline struct lruvec *folio_lruvec_relock_irq(struct folio *folio,
if (folio_matches_lruvec(folio, locked_lruvec))
return locked_lruvec;
- unlock_page_lruvec_irq(locked_lruvec);
+ lruvec_unlock_irq(locked_lruvec);
}
return folio_lruvec_lock_irq(folio);
@@ -1556,7 +1556,7 @@ static inline void folio_lruvec_relock_irqsave(struct folio *folio,
if (folio_matches_lruvec(folio, *lruvecp))
return;
- unlock_page_lruvec_irqrestore(*lruvecp, *flags);
+ lruvec_unlock_irqrestore(*lruvecp, *flags);
}
*lruvecp = folio_lruvec_lock_irqsave(folio, flags);
diff --git a/mm/compaction.c b/mm/compaction.c
index 139f00c0308a..ce45d633ddad 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -946,7 +946,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
*/
if (!(low_pfn % COMPACT_CLUSTER_MAX)) {
if (locked) {
- unlock_page_lruvec_irqrestore(locked, flags);
+ lruvec_unlock_irqrestore(locked, flags);
locked = NULL;
}
@@ -997,7 +997,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
}
/* for alloc_contig case */
if (locked) {
- unlock_page_lruvec_irqrestore(locked, flags);
+ lruvec_unlock_irqrestore(locked, flags);
locked = NULL;
}
@@ -1089,7 +1089,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
if (unlikely(__PageMovable(page)) &&
!PageIsolated(page)) {
if (locked) {
- unlock_page_lruvec_irqrestore(locked, flags);
+ lruvec_unlock_irqrestore(locked, flags);
locked = NULL;
}
@@ -1194,7 +1194,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
/* If we already hold the lock, we can skip some rechecking */
if (lruvec != locked) {
if (locked)
- unlock_page_lruvec_irqrestore(locked, flags);
+ lruvec_unlock_irqrestore(locked, flags);
compact_lock_irqsave(&lruvec->lru_lock, &flags, cc);
locked = lruvec;
@@ -1262,7 +1262,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
isolate_fail_put:
/* Avoid potential deadlock in freeing page under lru_lock */
if (locked) {
- unlock_page_lruvec_irqrestore(locked, flags);
+ lruvec_unlock_irqrestore(locked, flags);
locked = NULL;
}
folio_put(folio);
@@ -1278,7 +1278,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
*/
if (nr_isolated) {
if (locked) {
- unlock_page_lruvec_irqrestore(locked, flags);
+ lruvec_unlock_irqrestore(locked, flags);
locked = NULL;
}
putback_movable_pages(&cc->migratepages);
@@ -1310,7 +1310,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
isolate_abort:
if (locked)
- unlock_page_lruvec_irqrestore(locked, flags);
+ lruvec_unlock_irqrestore(locked, flags);
if (folio) {
folio_set_lru(folio);
folio_put(folio);
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 2a47682d1ab7..df66aa4bc4c2 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -3605,7 +3605,7 @@ static int __split_unmapped_folio(struct folio *folio, int new_order,
folio_ref_unfreeze(origin_folio, 1 +
((mapping || swap_cache) ? folio_nr_pages(origin_folio) : 0));
- unlock_page_lruvec(lruvec);
+ lruvec_unlock(lruvec);
if (swap_cache)
xa_unlock(&swap_cache->i_pages);
diff --git a/mm/mlock.c b/mm/mlock.c
index 3cb72b579ffd..86cad963edb7 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -205,7 +205,7 @@ static void mlock_folio_batch(struct folio_batch *fbatch)
}
if (lruvec)
- unlock_page_lruvec_irq(lruvec);
+ lruvec_unlock_irq(lruvec);
folios_put(fbatch);
}
diff --git a/mm/swap.c b/mm/swap.c
index 77b2d5997873..ee19e171857d 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -91,7 +91,7 @@ static void page_cache_release(struct folio *folio)
__page_cache_release(folio, &lruvec, &flags);
if (lruvec)
- unlock_page_lruvec_irqrestore(lruvec, flags);
+ lruvec_unlock_irqrestore(lruvec, flags);
}
void __folio_put(struct folio *folio)
@@ -171,7 +171,7 @@ static void folio_batch_move_lru(struct folio_batch *fbatch, move_fn_t move_fn)
}
if (lruvec)
- unlock_page_lruvec_irqrestore(lruvec, flags);
+ lruvec_unlock_irqrestore(lruvec, flags);
folios_put(fbatch);
}
@@ -343,7 +343,7 @@ void folio_activate(struct folio *folio)
lruvec = folio_lruvec_lock_irq(folio);
lru_activate(lruvec, folio);
- unlock_page_lruvec_irq(lruvec);
+ lruvec_unlock_irq(lruvec);
folio_set_lru(folio);
}
#endif
@@ -953,7 +953,7 @@ void folios_put_refs(struct folio_batch *folios, unsigned int *refs)
if (folio_is_zone_device(folio)) {
if (lruvec) {
- unlock_page_lruvec_irqrestore(lruvec, flags);
+ lruvec_unlock_irqrestore(lruvec, flags);
lruvec = NULL;
}
if (folio_ref_sub_and_test(folio, nr_refs))
@@ -967,7 +967,7 @@ void folios_put_refs(struct folio_batch *folios, unsigned int *refs)
/* hugetlb has its own memcg */
if (folio_test_hugetlb(folio)) {
if (lruvec) {
- unlock_page_lruvec_irqrestore(lruvec, flags);
+ lruvec_unlock_irqrestore(lruvec, flags);
lruvec = NULL;
}
free_huge_folio(folio);
@@ -981,7 +981,7 @@ void folios_put_refs(struct folio_batch *folios, unsigned int *refs)
j++;
}
if (lruvec)
- unlock_page_lruvec_irqrestore(lruvec, flags);
+ lruvec_unlock_irqrestore(lruvec, flags);
if (!j) {
folio_batch_reinit(folios);
return;
diff --git a/mm/vmscan.c b/mm/vmscan.c
index b620d74b0f66..a76b3cee043d 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1847,7 +1847,7 @@ bool folio_isolate_lru(struct folio *folio)
folio_get(folio);
lruvec = folio_lruvec_lock_irq(folio);
lruvec_del_folio(lruvec, folio);
- unlock_page_lruvec_irq(lruvec);
+ lruvec_unlock_irq(lruvec);
ret = true;
}
@@ -7681,7 +7681,7 @@ void check_move_unevictable_folios(struct folio_batch *fbatch)
if (lruvec) {
__count_vm_events(UNEVICTABLE_PGRESCUED, pgrescued);
__count_vm_events(UNEVICTABLE_PGSCANNED, pgscanned);
- unlock_page_lruvec_irq(lruvec);
+ lruvec_unlock_irq(lruvec);
} else if (pgscanned) {
count_vm_events(UNEVICTABLE_PGSCANNED, pgscanned);
}
--
2.20.1