[PATCH v4 1/3] mm/swap: rename mm/page_io.c to mm/swap_io.c

Baoquan He
2026-04-17T03:40:18Z

Codes in mm/page_io.c are only related to swap io, it has
nothing to do with other page io.

Rename it to avoid confusion.

Reviewed-by: Nhat Pham <nphamcs@gmail.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Acked-by: Kairui Song <kasong@tencent.com>
Acked-by: Chris Li <chrisl@kernel.org>
Signed-off-by: Baoquan He <baoquan.he@linux.dev>
---
MAINTAINERS | 2 +-
mm/Makefile | 2 +-
mm/swap.h | 2 +-
mm/{page_io.c => swap_io.c} | 2 --
4 files changed, 3 insertions(+), 5 deletions(-)
rename mm/{page_io.c => swap_io.c} (99%)

diff --git a/MAINTAINERS b/MAINTAINERS
index 447189411512..c7b5b6f5fa50 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17002,7 +17002,7 @@ F: Documentation/mm/swap-table.rst
F: include/linux/swap.h
F: include/linux/swapfile.h
F: include/linux/swapops.h
-F: mm/page_io.c
+F: mm/swap_io.c
F: mm/swap.c
F: mm/swap.h
F: mm/swap_table.h
diff --git a/mm/Makefile b/mm/Makefile
index 8ad2ab08244e..a65ac900096a 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -75,7 +75,7 @@ ifdef CONFIG_MMU
obj-$(CONFIG_ADVISE_SYSCALLS) += madvise.o
endif

-obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o
+obj-$(CONFIG_SWAP) += swap_io.o swap_state.o swapfile.o
obj-$(CONFIG_ZSWAP) += zswap.o
obj-$(CONFIG_HAS_DMA) += dmapool.o
obj-$(CONFIG_HUGETLBFS) += hugetlb.o hugetlb_sysfs.o hugetlb_sysctl.o
diff --git a/mm/swap.h b/mm/swap.h
index a77016f2423b..161185057993 100644
--- a/mm/swap.h
+++ b/mm/swap.h
@@ -214,7 +214,7 @@ extern void __swap_cluster_free_entries(struct swap_info_struct *si,
struct swap_cluster_info *ci,
unsigned int ci_off, unsigned int nr_pages);

-/* linux/mm/page_io.c */
+/* linux/mm/swap_io.c */
int sio_pool_init(void);
struct swap_iocb;
void swap_read_folio(struct folio *folio, struct swap_iocb **plug);
diff --git a/mm/page_io.c b/mm/swap_io.c
similarity index 99%
rename from mm/page_io.c
rename to mm/swap_io.c
index 330abc5ab7b4..a62c02ab0551 100644
--- a/mm/page_io.c
+++ b/mm/swap_io.c
@@ -1,7 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * linux/mm/page_io.c
- *
* Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds
*
* Swap reorganised 29.12.95,
--
2.52.0