The patch titled
Subject: mm: migrate: remove folio_migrate_copy()
has been added to the -mm mm-unstable branch. Its filename is
mm-migrate-remove-folio_migrate_copy.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-migrate-remove-folio_migrate_copy.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: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: mm: migrate: remove folio_migrate_copy()
Date: Wed, 26 Jun 2024 16:53:28 +0800
The folio_migrate_copy() is just a wrapper of folio_copy() and
folio_migrate_flags(), it is simple and only aio use it for now, unfold it
and remove folio_migrate_copy().
Link: https://lkml.kernel.org/r/20240626085328.608006-7-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Reviewed-by: Jane Chu <jane.chu@xxxxxxxxxx>
Cc: Alistair Popple <apopple@xxxxxxxxxx>
Cc: Benjamin LaHaise <bcrl@xxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Jérôme Glisse <jglisse@xxxxxxxxxx>
Cc: Jiaqi Yan <jiaqiyan@xxxxxxxxxx>
Cc: Lance Yang <ioworker0@xxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Muchun Song <muchun.song@xxxxxxxxx>
Cc: Naoya Horiguchi <nao.horiguchi@xxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Vishal Moola (Oracle) <vishal.moola@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/aio.c | 3 ++-
include/linux/migrate.h | 1 -
mm/migrate.c | 7 -------
3 files changed, 2 insertions(+), 9 deletions(-)
--- a/fs/aio.c~mm-migrate-remove-folio_migrate_copy
+++ a/fs/aio.c
@@ -455,7 +455,8 @@ static int aio_migrate_folio(struct addr
* events from being lost.
*/
spin_lock_irqsave(&ctx->completion_lock, flags);
- folio_migrate_copy(dst, src);
+ folio_copy(dst, src);
+ folio_migrate_flags(dst, src);
BUG_ON(ctx->ring_folios[idx] != src);
ctx->ring_folios[idx] = dst;
spin_unlock_irqrestore(&ctx->completion_lock, flags);
--- a/include/linux/migrate.h~mm-migrate-remove-folio_migrate_copy
+++ a/include/linux/migrate.h
@@ -76,7 +76,6 @@ int migrate_huge_page_move_mapping(struc
void migration_entry_wait_on_locked(swp_entry_t entry, spinlock_t *ptl)
__releases(ptl);
void folio_migrate_flags(struct folio *newfolio, struct folio *folio);
-void folio_migrate_copy(struct folio *newfolio, struct folio *folio);
int folio_migrate_mapping(struct address_space *mapping,
struct folio *newfolio, struct folio *folio, int extra_count);
--- a/mm/migrate.c~mm-migrate-remove-folio_migrate_copy
+++ a/mm/migrate.c
@@ -659,13 +659,6 @@ void folio_migrate_flags(struct folio *n
}
EXPORT_SYMBOL(folio_migrate_flags);
-void folio_migrate_copy(struct folio *newfolio, struct folio *folio)
-{
- folio_copy(newfolio, folio);
- folio_migrate_flags(newfolio, folio);
-}
-EXPORT_SYMBOL(folio_migrate_copy);
-
/************************************************************
* Migration functions
***********************************************************/
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
fs-proc-task_mmu-use-folio-api-in-pte_is_pinned.patch
mm-remove-page_maybe_dma_pinned.patch
mm-remove-page_maybe_dma_pinned-fix.patch
fb_defio-use-a-folio-in-fb_deferred_io_work.patch
mm-remove-page_mkclean.patch
mm-memory-convert-clear_huge_page-to-folio_zero_user.patch
mm-memory-use-folio-in-struct-copy_subpage_arg.patch
mm-memory-improve-copy_user_large_folio.patch
mm-memory-rename-pages_per_huge_page-to-nr_pages.patch
mm-move-memory_failure_queue-into-copy_mc__highpage.patch
mm-add-folio_mc_copy.patch
mm-migrate-split-folio_migrate_mapping.patch
mm-migrate-support-poisoned-recover-from-migrate-folio.patch
fs-hugetlbfs-support-poisoned-recover-from-hugetlbfs_migrate_folio.patch
mm-migrate-remove-folio_migrate_copy.patch
