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proc: convert smaps_pmd_entry to use a folio

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Replace two calls to compound_head() with one.

Link: https://lkml.kernel.org/r/20240403171456.1445117-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Christian Brauner <brauner@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-04-03 18:14:55 +01:00 committed by Andrew Morton
parent 27bb0a70e5
commit 039d26d10d
1 changed files with 5 additions and 3 deletions
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8
fs/proc/task_mmu.c
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@ -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;