memblock: s/memblock_analyze()/memblock_allow_resize()/ and update users

The only function of memblock_analyze() is now allowing resize of
memblock region arrays.  Rename it to memblock_allow_resize() and
update its users.

* The following users remain the same other than renaming.

  arm/mm/init.c::arm_memblock_init()
  microblaze/kernel/prom.c::early_init_devtree()
  powerpc/kernel/prom.c::early_init_devtree()
  openrisc/kernel/prom.c::early_init_devtree()
  sh/mm/init.c::paging_init()
  sparc/mm/init_64.c::paging_init()
  unicore32/mm/init.c::uc32_memblock_init()

* In the following users, analyze was used to update total size which
  is no longer necessary.

  powerpc/kernel/machine_kexec.c::reserve_crashkernel()
  powerpc/kernel/prom.c::early_init_devtree()
  powerpc/mm/init_32.c::MMU_init()
  powerpc/mm/tlb_nohash.c::__early_init_mmu()  
  powerpc/platforms/ps3/mm.c::ps3_mm_add_memory()
  powerpc/platforms/embedded6xx/wii.c::wii_memory_fixups()
  sh/kernel/machine_kexec.c::reserve_crashkernel()

* x86/kernel/e820.c::memblock_x86_fill() was directly setting
  memblock_can_resize before populating memblock and calling analyze
  afterwards.  Call memblock_allow_resize() before start populating.

memblock_can_resize is now static inside memblock.c.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: "H. Peter Anvin" <hpa@zytor.com>

16 files changed, 11 insertions, 26 deletions

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 4140843399ca..7c38474e533a 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -371,7 +371,7 @@ void __init arm_memblock_init(struct meminfo *mi, struct machine_desc *mdesc)
         if (mdesc->reserve)
                 mdesc->reserve();
 
-        memblock_analyze();
+        memblock_allow_resize();
         memblock_dump_all();
 }
 
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 4d65e9721f60..80d314e81901 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -129,7 +129,7 @@ void __init early_init_devtree(void *params)
         strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
         parse_early_param();
 
-        memblock_analyze();
+        memblock_allow_resize();
 
         pr_debug("Phys. mem: %lx\n", (unsigned long) memblock_phys_mem_size());
 
diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index 7dbc6e090b81..3d4478f6c942 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -82,7 +82,7 @@ void __init early_init_devtree(void *params)
         /* Save command line for /proc/cmdline and then parse parameters */
         strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
 
-        memblock_analyze();
+        memblock_allow_resize();
 
         /* We must copy the flattend device tree from init memory to regular
          * memory because the device tree references the strings in it
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index 9ce1672afb59..a2158a395d96 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -107,9 +107,6 @@ void __init reserve_crashkernel(void)
         unsigned long long crash_size, crash_base;
         int ret;
 
-        /* this is necessary because of memblock_phys_mem_size() */
-        memblock_analyze();
-
         /* use common parsing */
         ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
                         &crash_size, &crash_base);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 28500d4f29d9..abe405dab34d 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -758,11 +758,10 @@ void __init early_init_devtree(void *params)
          * Ensure that total memory size is page-aligned, because otherwise
          * mark_bootmem() gets upset.
          */
-        memblock_analyze();
         limit = ALIGN(memory_limit ?: memblock_phys_mem_size(), PAGE_SIZE);
         memblock_enforce_memory_limit(limit);
 
-        memblock_analyze();
+        memblock_allow_resize();
         memblock_dump_all();
 
         DBG("Phys. mem: %llx\n", memblock_phys_mem_size());
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index 12bb528e51c5..58861fa1220e 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -135,7 +135,6 @@ void __init MMU_init(void)
         if (memblock.memory.cnt > 1) {
 #ifndef CONFIG_WII
                 memblock_enforce_memory_limit(memblock.memory.regions[0].size);
-                memblock_analyze();
                 printk(KERN_WARNING "Only using first contiguous memory region");
 #else
                 wii_memory_fixups();
@@ -158,7 +157,6 @@ void __init MMU_init(void)
 #ifndef CONFIG_HIGHMEM
                 total_memory = total_lowmem;
                 memblock_enforce_memory_limit(total_lowmem);
-                memblock_analyze();
 #endif /* CONFIG_HIGHMEM */
         }
 
diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c
index 4e13d6f9023e..573ba3b69d1f 100644
--- a/arch/powerpc/mm/tlb_nohash.c
+++ b/arch/powerpc/mm/tlb_nohash.c
@@ -615,7 +615,6 @@ static void __early_init_mmu(int boot_cpu)
 
                 /* limit memory so we dont have linear faults */
                 memblock_enforce_memory_limit(linear_map_top);
-                memblock_analyze();
 
                 patch_exception(0x1c0, exc_data_tlb_miss_bolted_book3e);
                 patch_exception(0x1e0, exc_instruction_tlb_miss_bolted_book3e);
diff --git a/arch/powerpc/platforms/embedded6xx/wii.c b/arch/powerpc/platforms/embedded6xx/wii.c
index 1cbe9d3c7977..6d8dadf19f0b 100644
--- a/arch/powerpc/platforms/embedded6xx/wii.c
+++ b/arch/powerpc/platforms/embedded6xx/wii.c
@@ -88,7 +88,6 @@ void __init wii_memory_fixups(void)
         wii_hole_size = p[1].base - wii_hole_start;
         memblock_add(wii_hole_start, wii_hole_size);
         memblock_reserve(wii_hole_start, wii_hole_size);
-        memblock_analyze();
 
         BUG_ON(memblock.memory.cnt != 1);
         __memblock_dump_all();
diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 72714ad27842..8bd6ba542691 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -319,7 +319,6 @@ static int __init ps3_mm_add_memory(void)
         }
 
         memblock_add(start_addr, map.r1.size);
-        memblock_analyze();
 
         result = online_pages(start_pfn, nr_pages);
 
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index c5a33f007f88..9fea49f6e667 100644
--- a/arch/sh/kernel/machine_kexec.c
+++ b/arch/sh/kernel/machine_kexec.c
@@ -157,9 +157,6 @@ void __init reserve_crashkernel(void)
         unsigned long long crash_size, crash_base;
         int ret;
 
-        /* this is necessary because of memblock_phys_mem_size() */
-        memblock_analyze();
-
         ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
                         &crash_size, &crash_base);
         if (ret == 0 && crash_size > 0) {
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 2528962609f8..82cc576fab15 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -336,7 +336,7 @@ void __init paging_init(void)
                 sh_mv.mv_mem_reserve();
 
         memblock_enforce_memory_limit(memory_limit);
-        memblock_analyze();
+        memblock_allow_resize();
 
         memblock_dump_all();
 
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index f42cc878bf97..29723a2031fc 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1794,7 +1794,7 @@ void __init paging_init(void)
 
         memblock_enforce_memory_limit(cmdline_memory_size);
 
-        memblock_analyze();
+        memblock_allow_resize();
         memblock_dump_all();
 
         set_bit(0, mmu_context_bmap);
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index 01e235bd669d..de186bde8975 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -264,7 +264,7 @@ void __init uc32_memblock_init(struct meminfo *mi)
 
         uc32_mm_memblock_reserve();
 
-        memblock_analyze();
+        memblock_allow_resize();
         memblock_dump_all();
 }
 
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 056e65d5012b..8071e2f3d6eb 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1072,7 +1072,7 @@ void __init memblock_x86_fill(void)
          * We are safe to enable resizing, beause memblock_x86_fill()
          * is rather later for x86
          */
-        memblock_can_resize = 1;
+        memblock_allow_resize();
 
         for (i = 0; i < e820.nr_map; i++) {
                 struct e820entry *ei = &e820.map[i];
@@ -1087,7 +1087,6 @@ void __init memblock_x86_fill(void)
                 memblock_add(ei->addr, ei->size);
         }
 
-        memblock_analyze();
         memblock_dump_all();
 }
 
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 5bb15005f0f7..c5b3bbc75897 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -42,7 +42,6 @@ struct memblock {
 
 extern struct memblock memblock;
 extern int memblock_debug;
-extern int memblock_can_resize;
 
 #define memblock_dbg(fmt, ...) \
         if (memblock_debug) printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
@@ -52,7 +51,7 @@ phys_addr_t memblock_find_in_range(phys_addr_t start, phys_addr_t end,
 int memblock_free_reserved_regions(void);
 int memblock_reserve_reserved_regions(void);
 
-void memblock_analyze(void);
+void memblock_allow_resize(void);
 int memblock_add(phys_addr_t base, phys_addr_t size);
 int memblock_remove(phys_addr_t base, phys_addr_t size);
 int memblock_free(phys_addr_t base, phys_addr_t size);
diff --git a/mm/memblock.c b/mm/memblock.c
index f39964184b4a..a3ca95f35e03 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -36,7 +36,7 @@ struct memblock memblock __initdata_memblock = {
 };
 
 int memblock_debug __initdata_memblock;
-int memblock_can_resize __initdata_memblock;
+static int memblock_can_resize __initdata_memblock;
 
 /* inline so we don't get a warning when pr_debug is compiled out */
 static inline const char *memblock_type_name(struct memblock_type *type)
@@ -918,9 +918,8 @@ void __init_memblock __memblock_dump_all(void)
         memblock_dump(&memblock.reserved, "reserved");
 }
 
-void __init memblock_analyze(void)
+void __init memblock_allow_resize(void)
 {
-        /* We allow resizing from there */
         memblock_can_resize = 1;
 }