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-rw-r--r--include/linux/memcontrol.h32
-rw-r--r--mm/compaction.c2
-rw-r--r--mm/huge_memory.c5
-rw-r--r--mm/memcontrol.c77
-rw-r--r--mm/rmap.c2
-rw-r--r--mm/swap.c8
-rw-r--r--mm/vmscan.c3
7 files changed, 79 insertions, 50 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 35577caf27d9..30d2cd7b5c9e 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -801,15 +801,16 @@ struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p);
struct mem_cgroup *get_mem_cgroup_from_mm(struct mm_struct *mm);
-struct lruvec *lock_page_lruvec(struct page *page);
-struct lruvec *lock_page_lruvec_irq(struct page *page);
-struct lruvec *lock_page_lruvec_irqsave(struct page *page,
+struct lruvec *folio_lruvec_lock(struct folio *folio);
+struct lruvec *folio_lruvec_lock_irq(struct folio *folio);
+struct lruvec *folio_lruvec_lock_irqsave(struct folio *folio,
unsigned long *flags);
#ifdef CONFIG_DEBUG_VM
-void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page);
+void lruvec_memcg_debug(struct lruvec *lruvec, struct folio *folio);
#else
-static inline void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page)
+static inline
+void lruvec_memcg_debug(struct lruvec *lruvec, struct folio *folio)
{
}
#endif
@@ -1261,7 +1262,8 @@ static inline struct lruvec *folio_lruvec(struct folio *folio)
return &pgdat->__lruvec;
}
-static inline void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page)
+static inline
+void lruvec_memcg_debug(struct lruvec *lruvec, struct folio *folio)
{
}
@@ -1291,26 +1293,26 @@ static inline void mem_cgroup_put(struct mem_cgroup *memcg)
{
}
-static inline struct lruvec *lock_page_lruvec(struct page *page)
+static inline struct lruvec *folio_lruvec_lock(struct folio *folio)
{
- struct pglist_data *pgdat = page_pgdat(page);
+ struct pglist_data *pgdat = folio_pgdat(folio);
spin_lock(&pgdat->__lruvec.lru_lock);
return &pgdat->__lruvec;
}
-static inline struct lruvec *lock_page_lruvec_irq(struct page *page)
+static inline struct lruvec *folio_lruvec_lock_irq(struct folio *folio)
{
- struct pglist_data *pgdat = page_pgdat(page);
+ struct pglist_data *pgdat = folio_pgdat(folio);
spin_lock_irq(&pgdat->__lruvec.lru_lock);
return &pgdat->__lruvec;
}
-static inline struct lruvec *lock_page_lruvec_irqsave(struct page *page,
+static inline struct lruvec *folio_lruvec_lock_irqsave(struct folio *folio,
unsigned long *flagsp)
{
- struct pglist_data *pgdat = page_pgdat(page);
+ struct pglist_data *pgdat = folio_pgdat(folio);
spin_lock_irqsave(&pgdat->__lruvec.lru_lock, *flagsp);
return &pgdat->__lruvec;
@@ -1576,6 +1578,7 @@ static inline bool page_matches_lruvec(struct page *page, struct lruvec *lruvec)
static inline struct lruvec *relock_page_lruvec_irq(struct page *page,
struct lruvec *locked_lruvec)
{
+ struct folio *folio = page_folio(page);
if (locked_lruvec) {
if (page_matches_lruvec(page, locked_lruvec))
return locked_lruvec;
@@ -1583,13 +1586,14 @@ static inline struct lruvec *relock_page_lruvec_irq(struct page *page,
unlock_page_lruvec_irq(locked_lruvec);
}
- return lock_page_lruvec_irq(page);
+ return folio_lruvec_lock_irq(folio);
}
/* Don't lock again iff page's lruvec locked */
static inline struct lruvec *relock_page_lruvec_irqsave(struct page *page,
struct lruvec *locked_lruvec, unsigned long *flags)
{
+ struct folio *folio = page_folio(page);
if (locked_lruvec) {
if (page_matches_lruvec(page, locked_lruvec))
return locked_lruvec;
@@ -1597,7 +1601,7 @@ static inline struct lruvec *relock_page_lruvec_irqsave(struct page *page,
unlock_page_lruvec_irqrestore(locked_lruvec, *flags);
}
- return lock_page_lruvec_irqsave(page, flags);
+ return folio_lruvec_lock_irqsave(folio, flags);
}
#ifdef CONFIG_CGROUP_WRITEBACK
diff --git a/mm/compaction.c b/mm/compaction.c
index 37dfdf2b2287..fbc60f964c38 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1032,7 +1032,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
compact_lock_irqsave(&lruvec->lru_lock, &flags, cc);
locked = lruvec;
- lruvec_memcg_debug(lruvec, page);
+ lruvec_memcg_debug(lruvec, page_folio(page));
/* Try get exclusive access under lock */
if (!skip_updated) {
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index d49986a10d83..e5ea5f775d5c 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2405,7 +2405,8 @@ static void __split_huge_page_tail(struct page *head, int tail,
static void __split_huge_page(struct page *page, struct list_head *list,
pgoff_t end)
{
- struct page *head = compound_head(page);
+ struct folio *folio = page_folio(page);
+ struct page *head = &folio->page;
struct lruvec *lruvec;
struct address_space *swap_cache = NULL;
unsigned long offset = 0;
@@ -2424,7 +2425,7 @@ static void __split_huge_page(struct page *page, struct list_head *list,
}
/* lock lru list/PageCompound, ref frozen by page_ref_freeze */
- lruvec = lock_page_lruvec(head);
+ lruvec = folio_lruvec_lock(folio);
for (i = nr - 1; i >= 1; i--) {
__split_huge_page_tail(head, i, lruvec, list);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ea4f879d2771..8dab23a71fc4 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1126,67 +1126,88 @@ int mem_cgroup_scan_tasks(struct mem_cgroup *memcg,
}
#ifdef CONFIG_DEBUG_VM
-void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page)
+void lruvec_memcg_debug(struct lruvec *lruvec, struct folio *folio)
{
struct mem_cgroup *memcg;
if (mem_cgroup_disabled())
return;
- memcg = page_memcg(page);
+ memcg = folio_memcg(folio);
if (!memcg)
- VM_BUG_ON_PAGE(lruvec_memcg(lruvec) != root_mem_cgroup, page);
+ VM_BUG_ON_FOLIO(lruvec_memcg(lruvec) != root_mem_cgroup, folio);
else
- VM_BUG_ON_PAGE(lruvec_memcg(lruvec) != memcg, page);
+ VM_BUG_ON_FOLIO(lruvec_memcg(lruvec) != memcg, folio);
}
#endif
/**
- * lock_page_lruvec - lock and return lruvec for a given page.
- * @page: the page
+ * folio_lruvec_lock - Lock the lruvec for a folio.
+ * @folio: Pointer to the folio.
*
* These functions are safe to use under any of the following conditions:
- * - page locked
- * - PageLRU cleared
- * - lock_page_memcg()
- * - page->_refcount is zero
+ * - folio locked
+ * - folio_test_lru false
+ * - folio_memcg_lock()
+ * - folio frozen (refcount of 0)
+ *
+ * Return: The lruvec this folio is on with its lock held.
*/
-struct lruvec *lock_page_lruvec(struct page *page)
+struct lruvec *folio_lruvec_lock(struct folio *folio)
{
- struct folio *folio = page_folio(page);
- struct lruvec *lruvec;
+ struct lruvec *lruvec = folio_lruvec(folio);
- lruvec = folio_lruvec(folio);
spin_lock(&lruvec->lru_lock);
-
- lruvec_memcg_debug(lruvec, page);
+ lruvec_memcg_debug(lruvec, folio);
return lruvec;
}
-struct lruvec *lock_page_lruvec_irq(struct page *page)
+/**
+ * folio_lruvec_lock_irq - Lock the lruvec for a folio.
+ * @folio: Pointer to the folio.
+ *
+ * These functions are safe to use under any of the following conditions:
+ * - folio locked
+ * - folio_test_lru false
+ * - folio_memcg_lock()
+ * - folio frozen (refcount of 0)
+ *
+ * Return: The lruvec this folio is on with its lock held and interrupts
+ * disabled.
+ */
+struct lruvec *folio_lruvec_lock_irq(struct folio *folio)
{
- struct folio *folio = page_folio(page);
- struct lruvec *lruvec;
+ struct lruvec *lruvec = folio_lruvec(folio);
- lruvec = folio_lruvec(folio);
spin_lock_irq(&lruvec->lru_lock);
-
- lruvec_memcg_debug(lruvec, page);
+ lruvec_memcg_debug(lruvec, folio);
return lruvec;
}
-struct lruvec *lock_page_lruvec_irqsave(struct page *page, unsigned long *flags)
+/**
+ * folio_lruvec_lock_irqsave - Lock the lruvec for a folio.
+ * @folio: Pointer to the folio.
+ * @flags: Pointer to irqsave flags.
+ *
+ * These functions are safe to use under any of the following conditions:
+ * - folio locked
+ * - folio_test_lru false
+ * - folio_memcg_lock()
+ * - folio frozen (refcount of 0)
+ *
+ * Return: The lruvec this folio is on with its lock held and interrupts
+ * disabled.
+ */
+struct lruvec *folio_lruvec_lock_irqsave(struct folio *folio,
+ unsigned long *flags)
{
- struct folio *folio = page_folio(page);
- struct lruvec *lruvec;
+ struct lruvec *lruvec = folio_lruvec(folio);
- lruvec = folio_lruvec(folio);
spin_lock_irqsave(&lruvec->lru_lock, *flags);
-
- lruvec_memcg_debug(lruvec, page);
+ lruvec_memcg_debug(lruvec, folio);
return lruvec;
}
diff --git a/mm/rmap.c b/mm/rmap.c
index 6aebd1747251..059556dbefec 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -34,7 +34,7 @@
* mapping->private_lock (in __set_page_dirty_buffers)
* lock_page_memcg move_lock (in __set_page_dirty_buffers)
* i_pages lock (widely used)
- * lruvec->lru_lock (in lock_page_lruvec_irq)
+ * lruvec->lru_lock (in folio_lruvec_lock_irq)
* inode->i_lock (in set_page_dirty's __mark_inode_dirty)
* bdi.wb->list_lock (in set_page_dirty's __mark_inode_dirty)
* sb_lock (within inode_lock in fs/fs-writeback.c)
diff --git a/mm/swap.c b/mm/swap.c
index 65a74c89e7cf..d1fc964def12 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -80,10 +80,11 @@ static DEFINE_PER_CPU(struct lru_pvecs, lru_pvecs) = {
static void __page_cache_release(struct page *page)
{
if (PageLRU(page)) {
+ struct folio *folio = page_folio(page);
struct lruvec *lruvec;
unsigned long flags;
- lruvec = lock_page_lruvec_irqsave(page, &flags);
+ lruvec = folio_lruvec_lock_irqsave(folio, &flags);
del_page_from_lru_list(page, lruvec);
__clear_page_lru_flags(page);
unlock_page_lruvec_irqrestore(lruvec, flags);
@@ -350,11 +351,12 @@ static inline void activate_page_drain(int cpu)
static void activate_page(struct page *page)
{
+ struct folio *folio = page_folio(page);
struct lruvec *lruvec;
- page = compound_head(page);
+ page = &folio->page;
if (TestClearPageLRU(page)) {
- lruvec = lock_page_lruvec_irq(page);
+ lruvec = folio_lruvec_lock_irq(folio);
__activate_page(page, lruvec);
unlock_page_lruvec_irq(lruvec);
SetPageLRU(page);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 74296c2d1fed..8694e1549bcd 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2090,6 +2090,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
*/
int isolate_lru_page(struct page *page)
{
+ struct folio *folio = page_folio(page);
int ret = -EBUSY;
VM_BUG_ON_PAGE(!page_count(page), page);
@@ -2099,7 +2100,7 @@ int isolate_lru_page(struct page *page)
struct lruvec *lruvec;
get_page(page);
- lruvec = lock_page_lruvec_irq(page);
+ lruvec = folio_lruvec_lock_irq(folio);
del_page_from_lru_list(page, lruvec);
unlock_page_lruvec_irq(lruvec);
ret = 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-19 08:32:46 +0000