The quilt patch titled
Subject: mm: convert do_huge_pmd_anonymous_page to huge_zero_folio
has been removed from the -mm tree. Its filename was
mm-convert-do_huge_pmd_anonymous_page-to-huge_zero_folio.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm: convert do_huge_pmd_anonymous_page to huge_zero_folio
Date: Tue, 26 Mar 2024 20:28:26 +0000
Use folios more widely.
Link: https://lkml.kernel.org/r/20240326202833.523759-7-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/huge_memory.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)
--- a/mm/huge_memory.c~mm-convert-do_huge_pmd_anonymous_page-to-huge_zero_folio
+++ a/mm/huge_memory.c
@@ -971,14 +971,14 @@ gfp_t vma_thp_gfp_mask(struct vm_area_st
}
/* Caller must hold page table lock. */
-static void set_huge_zero_page(pgtable_t pgtable, struct mm_struct *mm,
+static void set_huge_zero_folio(pgtable_t pgtable, struct mm_struct *mm,
struct vm_area_struct *vma, unsigned long haddr, pmd_t *pmd,
- struct page *zero_page)
+ struct folio *zero_folio)
{
pmd_t entry;
if (!pmd_none(*pmd))
return;
- entry = mk_pmd(zero_page, vma->vm_page_prot);
+ entry = mk_pmd(&zero_folio->page, vma->vm_page_prot);
entry = pmd_mkhuge(entry);
pgtable_trans_huge_deposit(mm, pmd, pgtable);
set_pmd_at(mm, haddr, pmd, entry);
@@ -1002,13 +1002,14 @@ vm_fault_t do_huge_pmd_anonymous_page(st
!mm_forbids_zeropage(vma->vm_mm) &&
transparent_hugepage_use_zero_page()) {
pgtable_t pgtable;
- struct page *zero_page;
+ struct folio *zero_folio;
vm_fault_t ret;
+
pgtable = pte_alloc_one(vma->vm_mm);
if (unlikely(!pgtable))
return VM_FAULT_OOM;
- zero_page = mm_get_huge_zero_page(vma->vm_mm);
- if (unlikely(!zero_page)) {
+ zero_folio = mm_get_huge_zero_folio(vma->vm_mm);
+ if (unlikely(!zero_folio)) {
pte_free(vma->vm_mm, pgtable);
count_vm_event(THP_FAULT_FALLBACK);
return VM_FAULT_FALLBACK;
@@ -1026,8 +1027,8 @@ vm_fault_t do_huge_pmd_anonymous_page(st
ret = handle_userfault(vmf, VM_UFFD_MISSING);
VM_BUG_ON(ret & VM_FAULT_FALLBACK);
} else {
- set_huge_zero_page(pgtable, vma->vm_mm, vma,
- haddr, vmf->pmd, zero_page);
+ set_huge_zero_folio(pgtable, vma->vm_mm, vma,
+ haddr, vmf->pmd, zero_folio);
update_mmu_cache_pmd(vma, vmf->address, vmf->pmd);
spin_unlock(vmf->ptl);
}
@@ -1336,9 +1337,9 @@ int copy_huge_pmd(struct mm_struct *dst_
*/
if (is_huge_zero_pmd(pmd)) {
/*
- * get_huge_zero_page() will never allocate a new page here,
- * since we already have a zero page to copy. It just takes a
- * reference.
+ * mm_get_huge_zero_folio() will never allocate a new
+ * folio here, since we already have a zero page to
+ * copy. It just takes a reference.
*/
mm_get_huge_zero_folio(dst_mm);
goto out_zero_page;
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
doc-improve-the-description-of-__folio_mark_dirty.patch
buffer-add-kernel-doc-for-block_dirty_folio.patch
buffer-add-kernel-doc-for-try_to_free_buffers.patch
buffer-fix-__bread-and-__bread_gfp-kernel-doc.patch
buffer-add-kernel-doc-for-brelse-and-__brelse.patch
buffer-add-kernel-doc-for-bforget-and-__bforget.patch
buffer-improve-bdev_getblk-documentation.patch
doc-split-bufferrst-out-of-api-summaryrst.patch
doc-split-bufferrst-out-of-api-summaryrst-fix.patch
mm-memory-failure-remove-fsdax_pgoff-argument-from-__add_to_kill.patch
mm-memory-failure-pass-addr-to-__add_to_kill.patch
mm-return-the-address-from-page_mapped_in_vma.patch
mm-make-page_mapped_in_vma-conditional-on-config_memory_failure.patch
mm-memory-failure-convert-shake_page-to-shake_folio.patch
mm-convert-hugetlb_page_mapping_lock_write-to-folio.patch
mm-memory-failure-convert-memory_failure-to-use-a-folio.patch
mm-memory-failure-convert-hwpoison_user_mappings-to-take-a-folio.patch
mm-memory-failure-add-some-folio-conversions-to-unpoison_memory.patch
mm-memory-failure-use-folio-functions-throughout-collect_procs.patch
mm-memory-failure-pass-the-folio-to-collect_procs_ksm.patch
fscrypt-convert-bh_get_inode_and_lblk_num-to-use-a-folio.patch
f2fs-convert-f2fs_clear_page_cache_dirty_tag-to-use-a-folio.patch
memory-failure-remove-calls-to-page_mapping.patch
migrate-expand-the-use-of-folio-in-__migrate_device_pages.patch
userfault-expand-folio-use-in-mfill_atomic_install_pte.patch
mm-remove-page_mapping.patch
mm-remove-page_cache_alloc.patch
mm-remove-put_devmap_managed_page.patch
mm-convert-put_devmap_managed_page_refs-to-put_devmap_managed_folio_refs.patch
mm-remove-page_ref_sub_return.patch
gup-use-folios-for-gup_devmap.patch
mm-add-kernel-doc-for-folio_mark_accessed.patch
mm-remove-pagereferenced.patch
mm-simplify-thp_vma_allowable_order.patch
