+ maintainers-tmpfs-shmem-filesystem-updates.patch added to mm-hotfixes-unstable branch

+ maintainers-tmpfs-shmem-filesystem-updates.patch added to mm-hotfixes-unstable branch

[Andrew Morton]

The patch titled
     Subject: MAINTAINERS: TMPFS (SHMEM FILESYSTEM) updates
has been added to the -mm mm-hotfixes-unstable branch.  Its filename is
     maintainers-tmpfs-shmem-filesystem-updates.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/maintainers-tmpfs-shmem-filesystem-updates.patch

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

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days

------------------------------------------------------
From: "David Hildenbrand (Arm)" <david@kernel.org>
Subject: MAINTAINERS: TMPFS (SHMEM FILESYSTEM) updates
Date: Fri, 30 Oct 2026 22:34:26 +0100

I am not really the best shmem/tmpfs/memfd expert around, but it should
be good enough to judge when something is ready to be picked up, to then
pick it up. I'll have to heavily rely on Hugh and Baolin on judgment
for the more involved and more controversial bits.

Rename "TMPFS (SHMEM FILESYSTEM)" to "MEMORY MANAGEMENT - SHARED MEMORY
(SHMEM/TMPFS/MEMFD)" and move it accordingly. Add myself as a MAINTAINER
so people know whom to CC.

Add mm/core.git as the target git tree. Once shmem becomes a high volume
component we can dedicate it a separate tree and have dedicated people
pick it up.

While at it, add some more shmem/tmpfs/memfd related files+directories
we missed so far.

There is also "kernel/pid_sysctl.h", which includes some of the pid
namespaced sysctl vm.memfd_noexec. But that's really more of a proc/
namespace thingy, so it's not a good fit here.

Link: https://lore.kernel.org/20261030-maintainers-v1-2-97278f8a5f54@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Acked-by: Qi Zheng <qi.zheng@linux.dev>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Acked-by: SJ Park <sj@kernel.org>
Acked-by: Harry Yoo (Meta) <harry@kernel.org>
Acked-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Barry Song <baohua@kernel.org>
Cc: Brendan Jackman <brendan.jackman@linux.dev>
Cc: Byungchul Park <byungchul@sk.com>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: Chris Li <chrisl@kernel.org>
Cc: Christoph Lameter <cl@gentwo.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Gregory Price <gourry@gourry.net>
Cc: Hao Li <hao.li@linux.dev>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Kiryl Shutsemau <kas@kernel.org>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Nico Pache <nico.pache@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Usama Arif <usama.arif@linux.dev>
Cc: Will Deacon <will@kernel.org>
Cc: Xu Xin <xu.xin@linux.dev>
Cc: Ying Huang <ying.huang@linux.alibaba.com>
Cc: Youngjun Park <youngjun.park@lge.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
---

 MAINTAINERS |   30 +++++++++++++++++++-----------
 1 file changed, 19 insertions(+), 11 deletions(-)

--- a/MAINTAINERS~maintainers-tmpfs-shmem-filesystem-updates
+++ a/MAINTAINERS
@@ -17755,6 +17755,25 @@ S:	Maintained
 F:	include/linux/secretmem.h
 F:	mm/secretmem.c
 
+MEMORY MANAGEMENT - SHARED MEMORY (SHMEM/TMPFS/MEMFD)
+M:	Hugh Dickins <hughd@google.com>
+M:	David Hildenbrand <david@kernel.org>
+R:	Baolin Wang <baolin.wang@linux.alibaba.com>
+L:	linux-mm@kvack.org
+S:	Maintained
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mm/core.git for-next
+F:	Documentation/filesystems/tmpfs.rst
+F:	Documentation/mm/shmfs.rst
+F:	Documentation/userspace-api/mfd_noexec.rst
+F:	include/linux/memfd.h
+F:	include/linux/shmem_fs.h
+F:	include/uapi/linux/memfd.h
+F:	mm/memfd.c
+F:	mm/shmem.c
+F:	mm/shmem_quota.c
+F:	tools/testing/selftests/memfd/
+F:	tools/testing/selftests/tmpfs/
+
 MEMORY MANAGEMENT - SWAP
 M:	Andrew Morton <akpm@linux-foundation.org>
 M:	Chris Li <chrisl@kernel.org>
@@ -28166,17 +28185,6 @@ S:	Maintained
 F:	Documentation/hwmon/tmp513.rst
 F:	drivers/hwmon/tmp513.c
 
-TMPFS (SHMEM FILESYSTEM)
-M:	Hugh Dickins <hughd@google.com>
-R:	Baolin Wang <baolin.wang@linux.alibaba.com>
-L:	linux-mm@kvack.org
-S:	Maintained
-F:	include/linux/memfd.h
-F:	include/linux/shmem_fs.h
-F:	mm/memfd.c
-F:	mm/shmem.c
-F:	mm/shmem_quota.c
-
 TOMOYO SECURITY MODULE
 M:	Kentaro Takeda <takedakn@nttdata.co.jp>
 M:	Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
_

Patches currently in -mm which might be from david@kernel.org are

mm-fix-address-wraparound-when-scanning-large-folio-ptes.patch
mm-hugetlb-disable-pmd-sharing-for-uffd-missing-mode.patch
mm-vma-write-lock-source-vma-before-duplicating-it-in-__split_vma.patch
mm-madvise-preserve-vma_softdirty_bit-when-changing-anonymous-names.patch
mm-memory-failure-fix-folio-refcount-leak-and-min_order_for_split-locking.patch
maintainers-mention-for-next-branch-in-memory-management-memory-map.patch
maintainers-tmpfs-shmem-filesystem-updates.patch
maintainers-add-zi-yan-as-co-maintainer-for-memory-management-thp.patch
maintainers-sort-entries-in-mm-sections.patch
maintainers-add-missing-files-to-mm-component-sections.patch
maintainers-rename-and-move-memory-hotunplug.patch
maintainers-route-more-mm-changes-through-mm-coregit.patch