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Subject[PATCH 4/4] proc: Convert smaps_pmd_entry to use a folio
Date
Replace two calls to compound_head() with one.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
fs/proc/task_mmu.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 6d4f60bc8824..8ff79bd427ec 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -578,6 +578,7 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr,
struct vm_area_struct *vma = walk->vma;
bool locked = !!(vma->vm_flags & VM_LOCKED);
struct page *page = NULL;
+ struct folio *folio;
bool migration = false;

if (pmd_present(*pmd)) {
@@ -592,11 +593,12 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr,
}
if (IS_ERR_OR_NULL(page))
return;
- if (PageAnon(page))
+ folio = page_folio(page);
+ if (folio_test_anon(folio))
mss->anonymous_thp += HPAGE_PMD_SIZE;
- else if (PageSwapBacked(page))
+ else if (folio_test_swapbacked(folio))
mss->shmem_thp += HPAGE_PMD_SIZE;
- else if (is_zone_device_page(page))
+ else if (folio_is_zone_device(folio))
/* pass */;
else
mss->file_thp += HPAGE_PMD_SIZE;
--
2.43.0

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