Change __do_huge_pmd_anonymous_page() to take folio as input, as its
caller has used folio. Save one unnecessary call to compound_head().
Signed-off-by: Jianfeng Wang <jianfeng.w.wang@xxxxxxxxxx>
---
mm/huge_memory.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 89f58c7603b2..83566ee738e0 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -866,10 +866,9 @@ unsigned long thp_get_unmapped_area(struct file *filp, unsigned long addr,
EXPORT_SYMBOL_GPL(thp_get_unmapped_area);
static vm_fault_t __do_huge_pmd_anonymous_page(struct vm_fault *vmf,
- struct page *page, gfp_t gfp)
+ struct folio *folio, gfp_t gfp)
{
struct vm_area_struct *vma = vmf->vma;
- struct folio *folio = page_folio(page);
pgtable_t pgtable;
unsigned long haddr = vmf->address & HPAGE_PMD_MASK;
vm_fault_t ret = 0;
@@ -890,7 +889,7 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct vm_fault *vmf,
goto release;
}
- clear_huge_page(page, vmf->address, HPAGE_PMD_NR);
+ clear_huge_page(&folio->page, vmf->address, HPAGE_PMD_NR);
/*
* The memory barrier inside __folio_mark_uptodate makes sure that
* clear_huge_page writes become visible before the set_pmd_at()
@@ -918,7 +917,7 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct vm_fault *vmf,
return ret;
}
- entry = mk_huge_pmd(page, vma->vm_page_prot);
+ entry = mk_huge_pmd(&folio->page, vma->vm_page_prot);
entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma);
folio_add_new_anon_rmap(folio, vma, haddr);
folio_add_lru_vma(folio, vma);
@@ -1051,7 +1050,7 @@ vm_fault_t do_huge_pmd_anonymous_page(struct vm_fault *vmf)
count_vm_event(THP_FAULT_FALLBACK);
return VM_FAULT_FALLBACK;
}
- return __do_huge_pmd_anonymous_page(vmf, &folio->page, gfp);
+ return __do_huge_pmd_anonymous_page(vmf, folio, gfp);
}
static void insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr,
--
2.42.1
