+ mm-hugetlb-refactor-unmap_ref_private-to-take-folio-instead-of-page.patch added to mm-unstable branch

+ mm-hugetlb-refactor-unmap_ref_private-to-take-folio-instead-of-page.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/hugetlb: refactor unmap_ref_private() to take folio instead of page
has been added to the -mm mm-unstable branch.  Its filename is
     mm-hugetlb-refactor-unmap_ref_private-to-take-folio-instead-of-page.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-hugetlb-refactor-unmap_ref_private-to-take-folio-instead-of-page.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Fan Ni <fan.ni@samsung.com>
Subject: mm/hugetlb: refactor unmap_ref_private() to take folio instead of page
Date: Thu, 17 Apr 2025 08:43:13 -0700

The function unmap_ref_private() has only user, which passes in
&folio->page.  Let it take folio directly.

Link: https://lkml.kernel.org/r/20250417155530.124073-1-nifan.cxl@gmail.com
Signed-off-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Adam Manzanares <a.manzanares@samsung.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Luis Chamberalin <mcgrof@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muchun Song <muchun.song@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/hugetlb.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/mm/hugetlb.c~mm-hugetlb-refactor-unmap_ref_private-to-take-folio-instead-of-page
+++ a/mm/hugetlb.c
@@ -6039,7 +6039,7 @@ void unmap_hugepage_range(struct vm_area
  * same region.
  */
 static void unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
-			      struct page *page, unsigned long address)
+			      struct folio *folio, unsigned long address)
 {
 	struct hstate *h = hstate_vma(vma);
 	struct vm_area_struct *iter_vma;
@@ -6083,7 +6083,8 @@ static void unmap_ref_private(struct mm_
 		 */
 		if (!is_vma_resv_set(iter_vma, HPAGE_RESV_OWNER))
 			unmap_hugepage_range(iter_vma, address,
-					     address + huge_page_size(h), page, 0);
+					     address + huge_page_size(h),
+					     folio_page(folio, 0), 0);
 	}
 	i_mmap_unlock_write(mapping);
 }
@@ -6206,8 +6207,7 @@ retry_avoidcopy:
 			hugetlb_vma_unlock_read(vma);
 			mutex_unlock(&hugetlb_fault_mutex_table[hash]);
 
-			unmap_ref_private(mm, vma, &old_folio->page,
-					vmf->address);
+			unmap_ref_private(mm, vma, old_folio, vmf->address);
 
 			mutex_lock(&hugetlb_fault_mutex_table[hash]);
 			hugetlb_vma_lock_read(vma);
_

Patches currently in -mm which might be from fan.ni@samsung.com are

mm-hugetlb-refactor-unmap_ref_private-to-take-folio-instead-of-page.patch
mm-hugetlb-refactor-unmap_hugepage_range-to-take-folio-instead-of-page.patch
mm-hugetlb-refactor-__unmap_hugepage_range-to-take-folio-instead-of-page.patch
mm-convert-free_page_and_swap_cache-to-free_folio_and_swap_cache.patch
khugepaged-refactor-trace_mm_collapse_huge_page_isolate-to-take-folio-instead-of-page.patch