[merged mm-stable] mm-constify-process_shares_mm-for-improved-const-correctness.patch removed from -mm tree

[merged mm-stable] mm-constify-process_shares_mm-for-improved-const-correctness.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm: constify process_shares_mm() for improved const-correctness
has been removed from the -mm tree.  Its filename was
     mm-constify-process_shares_mm-for-improved-const-correctness.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: Max Kellermann <max.kellermann@ionos.com>
Subject: mm: constify process_shares_mm() for improved const-correctness
Date: Mon, 1 Sep 2025 22:50:14 +0200

This function only reads from the pointer arguments.

Local (loop) variables are also annotated with `const` to clarify that
these will not be written to.

Link: https://lkml.kernel.org/r/20250901205021.3573313-6-max.kellermann@ionos.com
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Borislav Betkov <bp@alien8.de>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Christian Zankel <chris@zankel.net>
Cc: David Rientjes <rientjes@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Bottomley <james.bottomley@HansenPartnership.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: "Nysal Jan K.A" <nysal@linux.ibm.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russel King <linux@armlinux.org.uk>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/mm.h |    2 +-
 mm/oom_kill.c      |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

--- a/include/linux/mm.h~mm-constify-process_shares_mm-for-improved-const-correctness
+++ a/include/linux/mm.h
@@ -3872,7 +3872,7 @@ static inline int in_gate_area(struct mm
 }
 #endif	/* __HAVE_ARCH_GATE_AREA */
 
-extern bool process_shares_mm(struct task_struct *p, struct mm_struct *mm);
+bool process_shares_mm(const struct task_struct *p, const struct mm_struct *mm);
 
 void drop_slab(void);
 
--- a/mm/oom_kill.c~mm-constify-process_shares_mm-for-improved-const-correctness
+++ a/mm/oom_kill.c
@@ -490,12 +490,12 @@ static bool oom_killer_disabled __read_m
  * task's threads: if one of those is using this mm then this task was also
  * using it.
  */
-bool process_shares_mm(struct task_struct *p, struct mm_struct *mm)
+bool process_shares_mm(const struct task_struct *p, const struct mm_struct *mm)
 {
-	struct task_struct *t;
+	const struct task_struct *t;
 
 	for_each_thread(p, t) {
-		struct mm_struct *t_mm = READ_ONCE(t->mm);
+		const struct mm_struct *t_mm = READ_ONCE(t->mm);
 		if (t_mm)
 			return t_mm == mm;
 	}
_

Patches currently in -mm which might be from max.kellermann@ionos.com are