Replace seven calls to compound_head() with one.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/proc/task_mmu.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index b94101cd2706..e8d1008a838d 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -444,6 +444,7 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page,
bool compound, bool young, bool dirty, bool locked,
bool migration)
{
+ struct folio *folio = page_folio(page);
int i, nr = compound ? compound_nr(page) : 1;
unsigned long size = nr * PAGE_SIZE;
@@ -451,27 +452,28 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page,
* First accumulate quantities that depend only on |size| and the type
* of the compound page.
*/
- if (PageAnon(page)) {
+ if (folio_test_anon(folio)) {
mss->anonymous += size;
- if (!PageSwapBacked(page) && !dirty && !PageDirty(page))
+ if (!folio_test_swapbacked(folio) && !dirty &&
+ !folio_test_dirty(folio))
mss->lazyfree += size;
}
- if (PageKsm(page))
+ if (folio_test_ksm(folio))
mss->ksm += size;
mss->resident += size;
/* Accumulate the size in pages that have been accessed. */
- if (young || page_is_young(page) || PageReferenced(page))
+ if (young || folio_test_young(folio) || folio_test_referenced(folio))
mss->referenced += size;
/*
* Then accumulate quantities that may depend on sharing, or that may
* differ page-by-page.
*
- * page_count(page) == 1 guarantees the page is mapped exactly once.
+ * refcount == 1 guarantees the page is mapped exactly once.
* If any subpage of the compound page mapped with PTE it would elevate
- * page_count().
+ * the refcount.
*
* The page_mapcount() is called to get a snapshot of the mapcount.
* Without holding the page lock this snapshot can be slightly wrong as
@@ -480,7 +482,7 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page,
* especially for migration entries. Treat regular migration entries
* as mapcount == 1.
*/
- if ((page_count(page) == 1) || migration) {
+ if ((folio_ref_count(folio) == 1) || migration) {
smaps_page_accumulate(mss, page, size, size << PSS_SHIFT, dirty,
locked, true);
return;
--
2.43.0
