[015/131] mm: use free_area_init() instead of free_area_init_nodes()

Commit Message

Andrew Morton June 3, 2020, 10:57 p.m. UTC

From: Mike Rapoport <[e-mail]>
Subject: mm: use free_area_init() instead of free_area_init_nodes()

free_area_init() has effectively became a wrapper for
free_area_init_nodes() and there is no point of keeping it.  Still
free_area_init() name is shorter and more general as it does not imply
necessity to initialize multiple nodes.

Rename free_area_init_nodes() to free_area_init(), update the callers and
drop old version of free_area_init().

Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Mike Rapoport <[e-mail]>
Reviewed-by: Baoquan He <[e-mail]>
Tested-by: Hoan Tran <[e-mail]>	[arm64]
Acked-by: Catalin Marinas <[e-mail]>
Cc: Brian Cain <[e-mail]>
Cc: "David S. Miller" <[e-mail]>
Cc: Geert Uytterhoeven <[e-mail]>
Cc: Greentime Hu <[e-mail]>
Cc: Greg Ungerer <[e-mail]>
Cc: Guan Xuetao <[e-mail]>
Cc: Guo Ren <[e-mail]>
Cc: Heiko Carstens <[e-mail]>
Cc: Helge Deller <[e-mail]>
Cc: "James E.J. Bottomley" <[e-mail]>
Cc: Jonathan Corbet <[e-mail]>
Cc: Ley Foon Tan <[e-mail]>
Cc: Mark Salter <[e-mail]>
Cc: Matt Turner <[e-mail]>
Cc: Max Filippov <[e-mail]>
Cc: Michael Ellerman <[e-mail]>
Cc: Michal Hocko <[e-mail]>
Cc: Michal Simek <[e-mail]>
Cc: Nick Hu <[e-mail]>
Cc: Paul Walmsley <[e-mail]>
Cc: Richard Weinberger <[e-mail]>
Cc: Rich Felker <[e-mail]>
Cc: Russell King <[e-mail]>
Cc: Stafford Horne <[e-mail]>
Cc: Thomas Bogendoerfer <[e-mail]>
Cc: Tony Luck <[e-mail]>
Cc: Vineet Gupta <[e-mail]>
Cc: Yoshinori Sato <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 arch/arm64/mm/init.c             |    2 +-
 arch/ia64/mm/contig.c            |    2 +-
 arch/ia64/mm/discontig.c         |    2 +-
 arch/microblaze/mm/init.c        |    2 +-
 arch/mips/loongson64/numa.c      |    2 +-
 arch/mips/mm/init.c              |    2 +-
 arch/mips/sgi-ip27/ip27-memory.c |    2 +-
 arch/powerpc/mm/mem.c            |    2 +-
 arch/riscv/mm/init.c             |    2 +-
 arch/s390/mm/init.c              |    2 +-
 arch/sh/mm/init.c                |    2 +-
 arch/sparc/mm/init_64.c          |    2 +-
 arch/x86/mm/init.c               |    2 +-
 include/linux/mm.h               |    7 +++----
 mm/page_alloc.c                  |   10 ++--------
 15 files changed, 18 insertions(+), 25 deletions(-)

Patch

--- a/arch/arm64/mm/init.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/arm64/mm/init.c
@@ -206,7 +206,7 @@  static void __init zone_sizes_init(unsig
 #endif
 	max_zone_pfns[ZONE_NORMAL] = max;
 
-	free_area_init_nodes(max_zone_pfns);
+	free_area_init(max_zone_pfns);
 }
 
 #else
--- a/arch/ia64/mm/contig.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/ia64/mm/contig.c
@@ -210,6 +210,6 @@  paging_init (void)
 		printk("Virtual mem_map starts at 0x%p\n", mem_map);
 	}
 #endif /* !CONFIG_VIRTUAL_MEM_MAP */
-	free_area_init_nodes(max_zone_pfns);
+	free_area_init(max_zone_pfns);
 	zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
 }
--- a/arch/ia64/mm/discontig.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/ia64/mm/discontig.c
@@ -627,7 +627,7 @@  void __init paging_init(void)
 	max_zone_pfns[ZONE_DMA32] = max_dma;
 #endif
 	max_zone_pfns[ZONE_NORMAL] = max_pfn;
-	free_area_init_nodes(max_zone_pfns);
+	free_area_init(max_zone_pfns);
 
 	zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
 }
--- a/arch/microblaze/mm/init.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/microblaze/mm/init.c
@@ -112,7 +112,7 @@  static void __init paging_init(void)
 #endif
 
 	/* We don't have holes in memory map */
-	free_area_init_nodes(zones_size);
+	free_area_init(zones_size);
 }
 
 void __init setup_memory(void)
--- a/arch/mips/loongson64/numa.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/mips/loongson64/numa.c
@@ -247,7 +247,7 @@  void __init paging_init(void)
 	zones_size[ZONE_DMA32] = MAX_DMA32_PFN;
 #endif
 	zones_size[ZONE_NORMAL] = max_low_pfn;
-	free_area_init_nodes(zones_size);
+	free_area_init(zones_size);
 }
 
 void __init mem_init(void)
--- a/arch/mips/mm/init.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/mips/mm/init.c
@@ -418,7 +418,7 @@  void __init paging_init(void)
 	}
 #endif
 
-	free_area_init_nodes(max_zone_pfns);
+	free_area_init(max_zone_pfns);
 }
 
 #ifdef CONFIG_64BIT
--- a/arch/mips/sgi-ip27/ip27-memory.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/mips/sgi-ip27/ip27-memory.c
@@ -419,7 +419,7 @@  void __init paging_init(void)
 
 	pagetable_init();
 	zones_size[ZONE_NORMAL] = max_low_pfn;
-	free_area_init_nodes(zones_size);
+	free_area_init(zones_size);
 }
 
 void __init mem_init(void)
--- a/arch/powerpc/mm/mem.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/powerpc/mm/mem.c
@@ -271,7 +271,7 @@  void __init paging_init(void)
 	max_zone_pfns[ZONE_HIGHMEM] = max_pfn;
 #endif
 
-	free_area_init_nodes(max_zone_pfns);
+	free_area_init(max_zone_pfns);
 
 	mark_nonram_nosave();
 }
--- a/arch/riscv/mm/init.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/riscv/mm/init.c
@@ -39,7 +39,7 @@  static void __init zone_sizes_init(void)
 #endif
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 
-	free_area_init_nodes(max_zone_pfns);
+	free_area_init(max_zone_pfns);
 }
 
 static void setup_zero_page(void)
--- a/arch/s390/mm/init.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/s390/mm/init.c
@@ -122,7 +122,7 @@  void __init paging_init(void)
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 	max_zone_pfns[ZONE_DMA] = PFN_DOWN(MAX_DMA_ADDRESS);
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
-	free_area_init_nodes(max_zone_pfns);
+	free_area_init(max_zone_pfns);
 }
 
 void mark_rodata_ro(void)
--- a/arch/sh/mm/init.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/sh/mm/init.c
@@ -334,7 +334,7 @@  void __init paging_init(void)
 
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
-	free_area_init_nodes(max_zone_pfns);
+	free_area_init(max_zone_pfns);
 }
 
 unsigned int mem_init_done = 0;
--- a/arch/sparc/mm/init_64.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/sparc/mm/init_64.c
@@ -2488,7 +2488,7 @@  void __init paging_init(void)
 
 		max_zone_pfns[ZONE_NORMAL] = end_pfn;
 
-		free_area_init_nodes(max_zone_pfns);
+		free_area_init(max_zone_pfns);
 	}
 
 	printk("Booting Linux...\n");
--- a/arch/x86/mm/init.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/arch/x86/mm/init.c
@@ -947,7 +947,7 @@  void __init zone_sizes_init(void)
 	max_zone_pfns[ZONE_HIGHMEM]	= max_pfn;
 #endif
 
-	free_area_init_nodes(max_zone_pfns);
+	free_area_init(max_zone_pfns);
 }
 
 __visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = {
--- a/include/linux/mm.h~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/include/linux/mm.h
@@ -2329,7 +2329,6 @@  static inline spinlock_t *pud_lock(struc
 }
 
 extern void __init pagecache_init(void);
-extern void free_area_init(unsigned long * max_zone_pfn);
 extern void __init free_area_init_node(int nid, unsigned long * zones_size,
 		unsigned long zone_start_pfn, unsigned long *zholes_size);
 extern void free_initmem(void);
@@ -2410,21 +2409,21 @@  static inline unsigned long get_num_phys
  *
  * An architecture is expected to register range of page frames backed by
  * physical memory with memblock_add[_node]() before calling
- * free_area_init_nodes() passing in the PFN each zone ends at. At a basic
+ * free_area_init() passing in the PFN each zone ends at. At a basic
  * usage, an architecture is expected to do something like
  *
  * unsigned long max_zone_pfns[MAX_NR_ZONES] = {max_dma, max_normal_pfn,
  * 							 max_highmem_pfn};
  * for_each_valid_physical_page_range()
  * 	memblock_add_node(base, size, nid)
- * free_area_init_nodes(max_zone_pfns);
+ * free_area_init(max_zone_pfns);
  *
  * free_bootmem_with_active_regions() calls free_bootmem_node() for each
  * registered physical page range.  Similarly
  * sparse_memory_present_with_active_regions() calls memory_present() for
  * each range when SPARSEMEM is enabled.
  */
-extern void free_area_init_nodes(unsigned long *max_zone_pfn);
+void free_area_init(unsigned long *max_zone_pfn);
 unsigned long node_map_pfn_alignment(void);
 unsigned long __absent_pages_in_range(int nid, unsigned long start_pfn,
 						unsigned long end_pfn);
--- a/mm/page_alloc.c~mm-use-free_area_init-instead-of-free_area_init_nodes
+++ a/mm/page_alloc.c
@@ -7440,7 +7440,7 @@  static void check_for_memory(pg_data_t *
 }
 
 /**
- * free_area_init_nodes - Initialise all pg_data_t and zone data
+ * free_area_init - Initialise all pg_data_t and zone data
  * @max_zone_pfn: an array of max PFNs for each zone
  *
  * This will call free_area_init_node() for each active node in the system.
@@ -7452,7 +7452,7 @@  static void check_for_memory(pg_data_t *
  * starts where the previous one ended. For example, ZONE_DMA32 starts
  * at arch_max_dma_pfn.
  */
-void __init free_area_init_nodes(unsigned long *max_zone_pfn)
+void __init free_area_init(unsigned long *max_zone_pfn)
 {
 	unsigned long start_pfn, end_pfn;
 	int i, nid;
@@ -7712,12 +7712,6 @@  void __init set_dma_reserve(unsigned lon
 	dma_reserve = new_dma_reserve;
 }
 
-void __init free_area_init(unsigned long *max_zone_pfn)
-{
-	init_unavailable_mem();
-	free_area_init_nodes(max_zone_pfn);
-}
-
 static int page_alloc_cpu_dead(unsigned int cpu)
 {