linux-kernel - [PATCH v1 0/2] mm: remove MIGRATEPAGE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250811143949.1117439-1-david@redhat.com>
Date: Mon, 11 Aug 2025 16:39:46 +0200
From: David Hildenbrand <david@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: linux-mm@...ck.org,
	linuxppc-dev@...ts.ozlabs.org,
	virtualization@...ts.linux.dev,
	linux-fsdevel@...r.kernel.org,
	linux-aio@...ck.org,
	linux-btrfs@...r.kernel.org,
	jfs-discussion@...ts.sourceforge.net,
	David Hildenbrand <david@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Jerrin Shaji George <jerrin.shaji-george@...adcom.com>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Eugenio Pérez <eperezma@...hat.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Christian Brauner <brauner@...nel.org>,
	Jan Kara <jack@...e.cz>,
	Benjamin LaHaise <bcrl@...ck.org>,
	Chris Mason <clm@...com>,
	Josef Bacik <josef@...icpanda.com>,
	David Sterba <dsterba@...e.com>,
	Muchun Song <muchun.song@...ux.dev>,
	Oscar Salvador <osalvador@...e.de>,
	Dave Kleikamp <shaggy@...nel.org>,
	Zi Yan <ziy@...dia.com>,
	Matthew Brost <matthew.brost@...el.com>,
	Joshua Hahn <joshua.hahnjy@...il.com>,
	Rakie Kim <rakie.kim@...com>,
	Byungchul Park <byungchul@...com>,
	Gregory Price <gourry@...rry.net>,
	Ying Huang <ying.huang@...ux.alibaba.com>,
	Alistair Popple <apopple@...dia.com>,
	Minchan Kim <minchan@...nel.org>,
	Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: [PATCH v1 0/2] mm: remove MIGRATEPAGE_*

This is against mm/mm-new.

This series gets rid of MIGRATEPAGE_UNMAP, to then convert the remaining
MIGRATEPAGE_SUCCESS usage to simply use 0 instead.

Not sure if it makes sense to split the second patch up, a treewide
cleanup felt more reasonable for this simple change in an area where
I don't expect a lot of churn.

Briefly tested with virtio-mem in a VM, making sure that basic
page migration keeps working.

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Madhavan Srinivasan <maddy@...ux.ibm.com>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Nicholas Piggin <npiggin@...il.com>
Cc: Christophe Leroy <christophe.leroy@...roup.eu>
Cc: Jerrin Shaji George <jerrin.shaji-george@...adcom.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: "Michael S. Tsirkin" <mst@...hat.com>
Cc: Jason Wang <jasowang@...hat.com>
Cc: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
Cc: "Eugenio Pérez" <eperezma@...hat.com>
Cc: Alexander Viro <viro@...iv.linux.org.uk>
Cc: Christian Brauner <brauner@...nel.org>
Cc: Jan Kara <jack@...e.cz>
Cc: Benjamin LaHaise <bcrl@...ck.org>
Cc: Chris Mason <clm@...com>
Cc: Josef Bacik <josef@...icpanda.com>
Cc: David Sterba <dsterba@...e.com>
Cc: Muchun Song <muchun.song@...ux.dev>
Cc: Oscar Salvador <osalvador@...e.de>
Cc: Dave Kleikamp <shaggy@...nel.org>
Cc: Zi Yan <ziy@...dia.com>
Cc: Matthew Brost <matthew.brost@...el.com>
Cc: Joshua Hahn <joshua.hahnjy@...il.com>
Cc: Rakie Kim <rakie.kim@...com>
Cc: Byungchul Park <byungchul@...com>
Cc: Gregory Price <gourry@...rry.net>
Cc: Ying Huang <ying.huang@...ux.alibaba.com>
Cc: Alistair Popple <apopple@...dia.com>
Cc: Minchan Kim <minchan@...nel.org>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>

David Hildenbrand (2):
  mm/migrate: remove MIGRATEPAGE_UNMAP
  treewide: remove MIGRATEPAGE_SUCCESS

 arch/powerpc/platforms/pseries/cmm.c |  2 +-
 drivers/misc/vmw_balloon.c           |  4 +-
 drivers/virtio/virtio_balloon.c      |  2 +-
 fs/aio.c                             |  2 +-
 fs/btrfs/inode.c                     |  4 +-
 fs/hugetlbfs/inode.c                 |  4 +-
 fs/jfs/jfs_metapage.c                |  8 +--
 include/linux/migrate.h              | 11 +---
 mm/migrate.c                         | 80 ++++++++++++++--------------
 mm/migrate_device.c                  |  2 +-
 mm/zsmalloc.c                        |  4 +-
 11 files changed, 56 insertions(+), 67 deletions(-)

base-commit: 53c448023185717d0ed56b5546dc2be405da92ff
-- 
2.50.1