[merged mm-stable] mm-memory-failure-pass-the-folio-to-collect_procs_ksm.patch removed from -mm tree

[Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>]

The quilt patch titled
     Subject: mm/memory-failure: pass the folio to collect_procs_ksm()
has been removed from the -mm tree.  Its filename was
     mm-memory-failure-pass-the-folio-to-collect_procs_ksm.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/memory-failure: pass the folio to collect_procs_ksm()
Date: Fri, 12 Apr 2024 20:35:08 +0100

We've already calculated it, so pass it in instead of recalculating it in
collect_procs_ksm().

Link: https://lkml.kernel.org/r/20240412193510.2356957-12-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: Jane Chu <jane.chu@xxxxxxxxxx>
Reviewed-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 include/linux/ksm.h |   14 +++-----------
 mm/ksm.c            |    5 ++---
 mm/memory-failure.c |    2 +-
 3 files changed, 6 insertions(+), 15 deletions(-)

--- a/include/linux/ksm.h~mm-memory-failure-pass-the-folio-to-collect_procs_ksm
+++ a/include/linux/ksm.h
@@ -81,15 +81,9 @@ struct folio *ksm_might_need_to_copy(str
 
 void rmap_walk_ksm(struct folio *folio, struct rmap_walk_control *rwc);
 void folio_migrate_ksm(struct folio *newfolio, struct folio *folio);
-
-#ifdef CONFIG_MEMORY_FAILURE
-void collect_procs_ksm(struct page *page, struct list_head *to_kill,
-		       int force_early);
-#endif
-
-#ifdef CONFIG_PROC_FS
+void collect_procs_ksm(struct folio *folio, struct page *page,
+		struct list_head *to_kill, int force_early);
 long ksm_process_profit(struct mm_struct *);
-#endif /* CONFIG_PROC_FS */
 
 #else  /* !CONFIG_KSM */
 
@@ -120,12 +114,10 @@ static inline void ksm_might_unmap_zero_
 {
 }
 
-#ifdef CONFIG_MEMORY_FAILURE
-static inline void collect_procs_ksm(struct page *page,
+static inline void collect_procs_ksm(struct folio *folio, struct page *page,
 				     struct list_head *to_kill, int force_early)
 {
 }
-#endif
 
 #ifdef CONFIG_MMU
 static inline int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
--- a/mm/ksm.c~mm-memory-failure-pass-the-folio-to-collect_procs_ksm
+++ a/mm/ksm.c
@@ -3178,12 +3178,11 @@ again:
 /*
  * Collect processes when the error hit an ksm page.
  */
-void collect_procs_ksm(struct page *page, struct list_head *to_kill,
-		       int force_early)
+void collect_procs_ksm(struct folio *folio, struct page *page,
+		struct list_head *to_kill, int force_early)
 {
 	struct ksm_stable_node *stable_node;
 	struct ksm_rmap_item *rmap_item;
-	struct folio *folio = page_folio(page);
 	struct vm_area_struct *vma;
 	struct task_struct *tsk;
 
--- a/mm/memory-failure.c~mm-memory-failure-pass-the-folio-to-collect_procs_ksm
+++ a/mm/memory-failure.c
@@ -729,7 +729,7 @@ static void collect_procs(struct folio *
 	if (!folio->mapping)
 		return;
 	if (unlikely(folio_test_ksm(folio)))
-		collect_procs_ksm(page, tokill, force_early);
+		collect_procs_ksm(folio, page, tokill, force_early);
 	else if (folio_test_anon(folio))
 		collect_procs_anon(folio, page, tokill, force_early);
 	else
_

Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are

squashfs-convert-squashfs_symlink_read_folio-to-use-folio-apis.patch
squashfs-remove-calls-to-set-the-folio-error-flag.patch
nilfs2-remove-calls-to-folio_set_error-and-folio_clear_error.patch