+ fs-proc-task_mmu-pin-mm_users-in-do_pagemap_scan-fix.patch added to mm-unstable branch

+ fs-proc-task_mmu-pin-mm_users-in-do_pagemap_scan-fix.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: fs-proc-task_mmu-pin-mm_users-in-do_pagemap_scan-fix
has been added to the -mm mm-unstable branch.  Its filename is
     fs-proc-task_mmu-pin-mm_users-in-do_pagemap_scan-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/fs-proc-task_mmu-pin-mm_users-in-do_pagemap_scan-fix.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: Andrew Morton <akpm@linux-foundation.org>
Subject: fs-proc-task_mmu-pin-mm_users-in-do_pagemap_scan-fix
Date: Mon Oct 19 06:04:17 PM PDT 2026

remove unneeded & undesirable test for !mm

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jann Horn <jannh@google.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Muhammad Usama Anjum <usama.anjum@arm.com>
Cc: Ngoc Quy <ngocquy0700@gmail.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Vlastimil Babka <vbabka@kernel.org>
---

 fs/proc/task_mmu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/proc/task_mmu.c~fs-proc-task_mmu-pin-mm_users-in-do_pagemap_scan-fix
+++ a/fs/proc/task_mmu.c
@@ -3125,7 +3125,7 @@ static long do_pagemap_scan(struct mm_st
 	size_t n_ranges_out = 0;
 	int ret;
 
-	if (!mm || !mmget_not_zero(mm))
+	if (!mmget_not_zero(mm))
 		return -ESRCH;
 
 	ret = pagemap_scan_get_args(&p.arg, uarg);
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

bio-iov-iter-rollback.patch
mm-damon-core-introduce-damos_quota_goal-complement-fix.patch
fs-proc-task_mmu-pin-mm_users-in-do_pagemap_scan-fix.patch
lib-cmdline-fix-get_options-count-and-overflow-with-large-ranges-fix.patch
drivers-media-v4l2-core-v4l2-vp9c-reduce-inlining.patch
fat-roll-back-the-new-entry-when-create-mkdir-fails-to-build-the-inode-fix.patch