+ mm-delete-the-unused-put_pages_list.patch added to mm-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm: delete the unused put_pages_list()
has been added to the -mm mm-unstable branch.  Its filename is
     mm-delete-the-unused-put_pages_list.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-delete-the-unused-put_pages_list.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: Hugh Dickins <hughd@google.com>
Subject: mm: delete the unused put_pages_list()
Date: Sun, 27 Oct 2024 13:14:42 -0700 (PDT)

The last user of put_pages_list() converted away from it in 6.10 commit
06c375053cef ("iommu/vt-d: add wrapper functions for page allocations"):
delete put_pages_list().

Link: https://lkml.kernel.org/r/d9985d6a-293e-176b-e63d-82fdfd28c139@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Peter Xu <peterx@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/mm.h |    2 --
 mm/swap.c          |   31 -------------------------------
 2 files changed, 33 deletions(-)

--- a/include/linux/mm.h~mm-delete-the-unused-put_pages_list
+++ a/include/linux/mm.h
@@ -1286,8 +1286,6 @@ static inline struct folio *virt_to_foli
 
 void __folio_put(struct folio *folio);
 
-void put_pages_list(struct list_head *pages);
-
 void split_page(struct page *page, unsigned int order);
 void folio_copy(struct folio *dst, struct folio *src);
 int folio_mc_copy(struct folio *dst, struct folio *src);
--- a/mm/swap.c~mm-delete-the-unused-put_pages_list
+++ a/mm/swap.c
@@ -127,37 +127,6 @@ void __folio_put(struct folio *folio)
 }
 EXPORT_SYMBOL(__folio_put);
 
-/**
- * put_pages_list() - release a list of pages
- * @pages: list of pages threaded on page->lru
- *
- * Release a list of pages which are strung together on page.lru.
- */
-void put_pages_list(struct list_head *pages)
-{
-	struct folio_batch fbatch;
-	struct folio *folio, *next;
-
-	folio_batch_init(&fbatch);
-	list_for_each_entry_safe(folio, next, pages, lru) {
-		if (!folio_put_testzero(folio))
-			continue;
-		if (folio_test_hugetlb(folio)) {
-			free_huge_folio(folio);
-			continue;
-		}
-		/* LRU flag must be clear because it's passed using the lru */
-		if (folio_batch_add(&fbatch, folio) > 0)
-			continue;
-		free_unref_folios(&fbatch);
-	}
-
-	if (fbatch.nr)
-		free_unref_folios(&fbatch);
-	INIT_LIST_HEAD(pages);
-}
-EXPORT_SYMBOL(put_pages_list);
-
 typedef void (*move_fn_t)(struct lruvec *lruvec, struct folio *folio);
 
 static void lru_add(struct lruvec *lruvec, struct folio *folio)
_

Patches currently in -mm which might be from hughd@google.com are

mm-delete-the-unused-put_pages_list.patch