The quilt patch titled
Subject: mm/swap: convert put_pages_list to use folios
has been removed from the -mm tree. Its filename was
mm-swap-convert-put_pages_list-to-use-folios.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/swap: convert put_pages_list to use folios
Date: Fri, 17 Jun 2022 18:50:12 +0100
Pages linked through the LRU list cannot be tail pages as ->compound_head
is in a union with one of the words of the list_head, and they cannot
be ZONE_DEVICE pages as ->pgmap is in a union with the same word.
Saves 60 bytes of text by removing a call to page_is_fake_head().
Link: https://lkml.kernel.org/r/20220617175020.717127-15-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swap.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/mm/swap.c~mm-swap-convert-put_pages_list-to-use-folios
+++ a/mm/swap.c
@@ -138,19 +138,19 @@ EXPORT_SYMBOL(__put_page);
*/
void put_pages_list(struct list_head *pages)
{
- struct page *page, *next;
+ struct folio *folio, *next;
- list_for_each_entry_safe(page, next, pages, lru) {
- if (!put_page_testzero(page)) {
- list_del(&page->lru);
+ list_for_each_entry_safe(folio, next, pages, lru) {
+ if (!folio_put_testzero(folio)) {
+ list_del(&folio->lru);
continue;
}
- if (PageHead(page)) {
- list_del(&page->lru);
- __put_compound_page(page);
+ if (folio_test_large(folio)) {
+ list_del(&folio->lru);
+ __put_compound_page(&folio->page);
continue;
}
- /* Cannot be PageLRU because it's passed to us using the lru */
+ /* LRU flag must be clear because it's passed using the lru */
}
free_unref_page_list(pages);
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
mm-swap-convert-__put_page-to-__folio_put.patch
mm-swap-convert-__put_single_page-to-__folio_put_small.patch
mm-swap-convert-__put_compound_page-to-__folio_put_large.patch
mm-swap-convert-__page_cache_release-to-use-a-folio.patch
mm-convert-destroy_compound_page-to-destroy_large_folio.patch
mm-convert-page_swap_flags-to-folio_swap_flags.patch
mm-swap-convert-delete_from_swap_cache-to-take-a-folio.patch
mm-swap-convert-__delete_from_swap_cache-to-a-folio.patch
mm-add-vma-iterator.patch
mmap-use-the-vma-iterator-in-count_vma_pages_range.patch
proc-remove-vma-rbtree-use-from-nommu.patch
arm64-remove-mmap-linked-list-from-vdso.patch
parisc-remove-mmap-linked-list-from-cache-handling.patch
powerpc-remove-mmap-linked-list-walks.patch
s390-remove-vma-linked-list-walks.patch
x86-remove-vma-linked-list-walks.patch
xtensa-remove-vma-linked-list-walks.patch
cxl-remove-vma-linked-list-walk.patch
optee-remove-vma-linked-list-walk.patch
um-remove-vma-linked-list-walk.patch
coredump-remove-vma-linked-list-walk.patch
exec-use-vma-iterator-instead-of-linked-list.patch
fs-proc-task_mmu-stop-using-linked-list-and-highest_vm_end.patch
acct-use-vma-iterator-instead-of-linked-list.patch
perf-use-vma-iterator.patch
sched-use-maple-tree-iterator-to-walk-vmas.patch
fork-use-vma-iterator.patch
mm-khugepaged-stop-using-vma-linked-list.patch
mm-ksm-use-vma-iterators-instead-of-vma-linked-list.patch
mm-mlock-use-vma-iterator-and-maple-state-instead-of-vma-linked-list.patch
mm-pagewalk-use-vma_find-instead-of-vma-linked-list.patch
i915-use-the-vma-iterator.patch
nommu-remove-uses-of-vma-linked-list.patch
mips-rename-pmd_order-to-pmd_table_order.patch
