The current memmap_init_zone() only handles memory region inside one zone,
actually memmap_init() does the memmap init of one zone. So rename both of
them accordingly.

And also rename the function parameter 'range_start_pfn' and local variable
'range_end_pfn' of memmap_init() to zone_start_pfn/zone_end_pfn.

Signed-off-by: Baoquan He <b...@redhat.com>
---
 arch/ia64/include/asm/pgtable.h |  2 +-
 arch/ia64/mm/init.c             |  6 +++---
 include/linux/mm.h              |  2 +-
 mm/memory_hotplug.c             |  2 +-
 mm/page_alloc.c                 | 24 ++++++++++++------------
 5 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index 779b6972aa84..dce2ff37df65 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -520,7 +520,7 @@ extern struct page *zero_page_memmap_ptr;
 
 #  ifdef CONFIG_VIRTUAL_MEM_MAP
   /* arch mem_map init routine is needed due to holes in a virtual mem_map */
-    extern void memmap_init (unsigned long size, int nid, unsigned long zone,
+    extern void memmap_init_zone(unsigned long size, int nid, unsigned long 
zone,
                             unsigned long start_pfn);
 #  endif /* CONFIG_VIRTUAL_MEM_MAP */
 # endif /* !__ASSEMBLY__ */
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index e76386a3479e..c8e68e92beb3 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -535,18 +535,18 @@ virtual_memmap_init(u64 start, u64 end, void *arg)
                    / sizeof(struct page));
 
        if (map_start < map_end)
-               memmap_init_zone((unsigned long)(map_end - map_start),
+               memmap_init_range((unsigned long)(map_end - map_start),
                                 args->nid, args->zone, page_to_pfn(map_start), 
page_to_pfn(map_end),
                                 MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
        return 0;
 }
 
 void __meminit
-memmap_init (unsigned long size, int nid, unsigned long zone,
+memmap_init_zone(unsigned long size, int nid, unsigned long zone,
             unsigned long start_pfn)
 {
        if (!vmem_map) {
-               memmap_init_zone(size, nid, zone, start_pfn, start_pfn + size,
+               memmap_init_range(size, nid, zone, start_pfn, start_pfn + size,
                                 MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
        } else {
                struct page *start;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 92e06ea053f4..f72c138c2272 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2432,7 +2432,7 @@ extern int __meminit early_pfn_to_nid(unsigned long pfn);
 #endif
 
 extern void set_dma_reserve(unsigned long new_dma_reserve);
-extern void memmap_init_zone(unsigned long, int, unsigned long,
+extern void memmap_init_range(unsigned long, int, unsigned long,
                unsigned long, unsigned long, enum meminit_context,
                struct vmem_altmap *, int migratetype);
 extern void setup_per_zone_wmarks(void);
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index f9d57b9be8c7..ddcb1cd24c60 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -713,7 +713,7 @@ void __ref move_pfn_range_to_zone(struct zone *zone, 
unsigned long start_pfn,
         * expects the zone spans the pfn range. All the pages in the range
         * are reserved so nobody should be touching them so we should be safe
         */
-       memmap_init_zone(nr_pages, nid, zone_idx(zone), start_pfn, 0,
+       memmap_init_range(nr_pages, nid, zone_idx(zone), start_pfn, 0,
                         MEMINIT_HOTPLUG, altmap, migratetype);
 
        set_zone_contiguous(zone);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 32645f2e7b96..4b46326099d9 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6117,7 +6117,7 @@ overlap_memmap_init(unsigned long zone, unsigned long 
*pfn)
  * (usually MIGRATE_MOVABLE). Besides setting the migratetype, no related
  * zone stats (e.g., nr_isolate_pageblock) are touched.
  */
-void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long 
zone,
+void __meminit memmap_init_range(unsigned long size, int nid, unsigned long 
zone,
                unsigned long start_pfn, unsigned long zone_end_pfn,
                enum meminit_context context,
                struct vmem_altmap *altmap, int migratetype)
@@ -6292,24 +6292,24 @@ static inline u64 init_unavailable_range(unsigned long 
spfn, unsigned long epfn,
 }
 #endif
 
-void __init __weak memmap_init(unsigned long size, int nid,
+void __init __weak memmap_init_zone(unsigned long size, int nid,
                               unsigned long zone,
-                              unsigned long range_start_pfn)
+                              unsigned long zone_start_pfn)
 {
        unsigned long start_pfn, end_pfn, hole_start_pfn = 0;
-       unsigned long range_end_pfn = range_start_pfn + size;
+       unsigned long zone_end_pfn = zone_start_pfn + size;
        u64 pgcnt = 0;
        int i;
 
        for_each_mem_pfn_range(i, nid, &start_pfn, &end_pfn, NULL) {
-               start_pfn = clamp(start_pfn, range_start_pfn, range_end_pfn);
-               end_pfn = clamp(end_pfn, range_start_pfn, range_end_pfn);
-               hole_start_pfn = clamp(hole_start_pfn, range_start_pfn,
-                                      range_end_pfn);
+               start_pfn = clamp(start_pfn, zone_start_pfn, zone_end_pfn);
+               end_pfn = clamp(end_pfn, zone_start_pfn, zone_end_pfn);
+               hole_start_pfn = clamp(hole_start_pfn, zone_start_pfn,
+                                      zone_end_pfn);
 
                if (end_pfn > start_pfn) {
                        size = end_pfn - start_pfn;
-                       memmap_init_zone(size, nid, zone, start_pfn, 
range_end_pfn,
+                       memmap_init_range(size, nid, zone, start_pfn, 
zone_end_pfn,
                                         MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
                }
 
@@ -6326,8 +6326,8 @@ void __init __weak memmap_init(unsigned long size, int 
nid,
         * considered initialized. Make sure that memmap has a well defined
         * state.
         */
-       if (hole_start_pfn < range_end_pfn)
-               pgcnt += init_unavailable_range(hole_start_pfn, range_end_pfn,
+       if (hole_start_pfn < zone_end_pfn)
+               pgcnt += init_unavailable_range(hole_start_pfn, zone_end_pfn,
                                                zone, nid);
 
        if (pgcnt)
@@ -7039,7 +7039,7 @@ static void __init free_area_init_core(struct pglist_data 
*pgdat)
                set_pageblock_order();
                setup_usemap(pgdat, zone, zone_start_pfn, size);
                init_currently_empty_zone(zone, zone_start_pfn, size);
-               memmap_init(size, nid, j, zone_start_pfn);
+               memmap_init_zone(size, nid, j, zone_start_pfn);
        }
 }
 
-- 
2.17.2

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