+ mm-remove-total_mapcount.patch added to mm-unstable branch

+ mm-remove-total_mapcount.patch added to mm-unstable branch

[Andrew Morton]

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

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-total_mapcount.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: David Hildenbrand <david@redhat.com>
Subject: mm: remove total_mapcount()
Date: Mon, 26 Feb 2024 15:13:24 +0100

All users of total_mapcount() are gone, let's remove it.

Link: https://lkml.kernel.org/r/20240226141324.278526-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/mm.h |    9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

--- a/include/linux/mm.h~mm-remove-total_mapcount
+++ a/include/linux/mm.h
@@ -1183,7 +1183,7 @@ static inline int is_vmalloc_or_module_a
  * How many times the entire folio is mapped as a single unit (eg by a
  * PMD or PUD entry).  This is probably not what you want, except for
  * debugging purposes - it does not include PTE-mapped sub-pages; look
- * at folio_mapcount() or page_mapcount() or total_mapcount() instead.
+ * at folio_mapcount() or page_mapcount() instead.
  */
 static inline int folio_entire_mapcount(struct folio *folio)
 {
@@ -1243,13 +1243,6 @@ static inline int folio_mapcount(struct
 	return folio_total_mapcount(folio);
 }
 
-static inline int total_mapcount(struct page *page)
-{
-	if (likely(!PageCompound(page)))
-		return atomic_read(&page->_mapcount) + 1;
-	return folio_total_mapcount(page_folio(page));
-}
-
 static inline bool folio_large_is_mapped(struct folio *folio)
 {
 	/*
_

Patches currently in -mm which might be from david@redhat.com are

mm-memfd-refactor-memfd_tag_pins-and-memfd_wait_for_pins.patch
mm-remove-total_mapcount.patch