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proc: convert smaps_pmd_entry to use a folio
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>
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@ -578,6 +578,7 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr,
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struct vm_area_struct *vma = walk->vma;
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struct vm_area_struct *vma = walk->vma;
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bool locked = !!(vma->vm_flags & VM_LOCKED);
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bool locked = !!(vma->vm_flags & VM_LOCKED);
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struct page *page = NULL;
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struct page *page = NULL;
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struct folio *folio;
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bool migration = false;
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bool migration = false;
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if (pmd_present(*pmd)) {
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if (pmd_present(*pmd)) {
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@ -592,11 +593,12 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr,
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}
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}
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if (IS_ERR_OR_NULL(page))
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if (IS_ERR_OR_NULL(page))
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return;
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return;
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if (PageAnon(page))
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folio = page_folio(page);
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if (folio_test_anon(folio))
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mss->anonymous_thp += HPAGE_PMD_SIZE;
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mss->anonymous_thp += HPAGE_PMD_SIZE;
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else if (PageSwapBacked(page))
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else if (folio_test_swapbacked(folio))
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mss->shmem_thp += HPAGE_PMD_SIZE;
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mss->shmem_thp += HPAGE_PMD_SIZE;
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else if (is_zone_device_page(page))
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else if (folio_is_zone_device(folio))
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/* pass */;
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/* pass */;
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else
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else
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mss->file_thp += HPAGE_PMD_SIZE;
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mss->file_thp += HPAGE_PMD_SIZE;
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