[PATCH v1 0/2] mm: remove MIGRATEPAGE_*

[David Hildenbrand]

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@xxxxxxxxxxxxxxxxxxxx>
Cc: Madhavan Srinivasan <maddy@xxxxxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: Jerrin Shaji George <jerrin.shaji-george@xxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Cc: Jason Wang <jasowang@xxxxxxxxxx>
Cc: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>
Cc: "Eugenio Pérez" <eperezma@xxxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Christian Brauner <brauner@xxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Cc: Benjamin LaHaise <bcrl@xxxxxxxxx>
Cc: Chris Mason <clm@xxxxxx>
Cc: Josef Bacik <josef@xxxxxxxxxxxxxx>
Cc: David Sterba <dsterba@xxxxxxxx>
Cc: Muchun Song <muchun.song@xxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: Dave Kleikamp <shaggy@xxxxxxxxxx>
Cc: Zi Yan <ziy@xxxxxxxxxx>
Cc: Matthew Brost <matthew.brost@xxxxxxxxx>
Cc: Joshua Hahn <joshua.hahnjy@xxxxxxxxx>
Cc: Rakie Kim <rakie.kim@xxxxxx>
Cc: Byungchul Park <byungchul@xxxxxx>
Cc: Gregory Price <gourry@xxxxxxxxxx>
Cc: Ying Huang <ying.huang@xxxxxxxxxxxxxxxxx>
Cc: Alistair Popple <apopple@xxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>

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