[PATCH v3 2/3] mm: move folio LRU code out of swap

[Jianyue Wu]

Rename mm/swap.c to mm/folio_lru.c so the filename better matches
the code's main responsibility.

This keeps the implementation split from swap-specific code without
changing the published LRU helper interfaces.

Update MAINTAINERS and the remaining mm/swap.c documentation references
after the rename.

Suggested-by: Baoquan He <bhe@xxxxxxxxxx>
Suggested-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Jianyue Wu <wujianyue000@xxxxxxxxx>
---
 Documentation/admin-guide/sysctl/vm.rst | 2 +-
 Documentation/core-api/mm-api.rst       | 2 +-
 MAINTAINERS                             | 3 +--
 mm/Makefile                             | 2 +-
 mm/{swap.c => folio_lru.c}              | 2 +-
 5 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index 97e12359775c..31d135e107cb 100644
--- a/Documentation/admin-guide/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
@@ -20,7 +20,7 @@ of the virtual memory (VM) subsystem of the Linux kernel and
 the writeout of dirty data to disk.
 
 Default values and initialization routines for most of these
-files can be found in mm/swap.c.
+files can be found in mm/swap_state.c.
 
 Currently, these files are in /proc/sys/vm:
 
diff --git a/Documentation/core-api/mm-api.rst b/Documentation/core-api/mm-api.rst
index aabdd3cba58e..d6d189b9a996 100644
--- a/Documentation/core-api/mm-api.rst
+++ b/Documentation/core-api/mm-api.rst
@@ -117,7 +117,7 @@ More Memory Management Functions
 .. #kernel-doc:: mm/hmm.c (build warnings)
 .. kernel-doc:: mm/memremap.c
 .. kernel-doc:: mm/hugetlb.c
-.. kernel-doc:: mm/swap.c
+.. kernel-doc:: mm/folio_lru.c
 .. kernel-doc:: mm/memcontrol.c
 .. #kernel-doc:: mm/memory-tiers.c (build warnings)
 .. kernel-doc:: mm/shmem.c
diff --git a/MAINTAINERS b/MAINTAINERS
index e3ee97f5474e..6bd39e0afceb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16900,7 +16900,7 @@ F:	Documentation/admin-guide/mm/multigen_lru.rst
 F:	Documentation/mm/multigen_lru.rst
 F:	include/linux/mm_inline.h
 F:	include/linux/mmzone.h
-F:	mm/swap.c
+F:	mm/folio_lru.c
 F:	mm/vmscan.c
 F:	mm/workingset.c
 
@@ -17045,7 +17045,6 @@ F:	include/linux/swap.h
 F:	include/linux/swapfile.h
 F:	include/linux/swapops.h
 F:	mm/page_io.c
-F:	mm/swap.c
 F:	mm/swap.h
 F:	mm/swap_table.h
 F:	mm/swap_state.c
diff --git a/mm/Makefile b/mm/Makefile
index eff9f9e7e061..5f712f9bbe73 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -50,7 +50,7 @@ endif
 
 obj-y			:= filemap.o mempool.o oom_kill.o fadvise.o \
 			   maccess.o page-writeback.o folio-compat.o \
-			   readahead.o swap.o truncate.o vmscan.o shrinker.o \
+			   readahead.o folio_lru.o truncate.o vmscan.o shrinker.o \
 			   shmem.o util.o mmzone.o vmstat.o backing-dev.o \
 			   mm_init.o percpu.o slab_common.o \
 			   compaction.o show_mem.o \
diff --git a/mm/swap.c b/mm/folio_lru.c
similarity index 99%
rename from mm/swap.c
rename to mm/folio_lru.c
index e4b3dadaa6dc..7dab6a544d94 100644
--- a/mm/swap.c
+++ b/mm/folio_lru.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- *  linux/mm/swap.c
+ *  linux/mm/folio_lru.c
  *
  *  Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
  */

-- 
2.43.0