+ mm-remove-unused-mark_page_reserved.patch added to mm-new branch

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

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

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-unused-mark_page_reserved.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

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------------------------------------------------------
From: Tal Zussman <tz2294@columbia.edu>
Subject: mm: remove unused mark_page_reserved()
Date: Tue, 01 Sep 2026 15:38:04 -0400

Patch series "mm: remove three unused helpers from mm.h", v2.

I happened to notice these were unused.  Two of them are relatively
recently unused, and one has been unused for a few years.  Remove them.


This patch (of 2):

mark_page_reserved() lost its last caller in commit 6215d9f4470f ("arch,
mm: consolidate empty_zero_page"). Remove it.

Link: https://lore.kernel.org/20260901-mm-remove-unused-helpers-v2-0-f6474e169c23@columbia.edu
Link: https://lore.kernel.org/20260901-mm-remove-unused-helpers-v2-1-f6474e169c23@columbia.edu
Signed-off-by: Tal Zussman <tz2294@columbia.edu>
Reviewed-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/mm.h |    6 ------
 1 file changed, 6 deletions(-)

--- a/include/linux/mm.h~mm-remove-unused-mark_page_reserved
+++ a/include/linux/mm.h
@@ -4080,12 +4080,6 @@ static inline void free_reserved_page(st
 	free_reserved_pages(page, 0);
 }
 
-static inline void mark_page_reserved(struct page *page)
-{
-	SetPageReserved(page);
-	adjust_managed_page_count(page, -1);
-}
-
 static inline void free_reserved_ptdesc(struct ptdesc *pt)
 {
 	free_reserved_page(ptdesc_page(pt));
_

Patches currently in -mm which might be from tz2294@columbia.edu are

mm-page_io-convert-write-completion-handlers-to-folios.patch
mm-remove-pagereclaim.patch
mm-page_io-use-swap-entries-directly-in-zeromap-helpers.patch
mm-page_io-rename-bio_associate_blkg_from_page.patch
mm-page_io-refer-to-folios-in-swap_writeout-comments.patch
mm-swap-rename-__swap_writepage-to-__swap_writeout.patch
mm-remove-unused-mark_page_reserved.patch
mm-remove-unused-totalram_pages_inc-and-totalram_pages_dec.patch