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Date: Thu, 05 Apr 2007 17:01:02 +0900
From: Yasunori Goto <y-goto@...fujitsu.com>
To: Andrew Morton <akpm@...l.org>
Cc: Linux Kernel ML <linux-kernel@...r.kernel.org>,
Miles Lane <miles.lane@...il.com>,
Sam Ravnborg <sam@...nborg.org>
Subject: [Patch] Fix section mismatch of memory hotplug related code.
Hello.
This is to fix many section mismatches of code related to memory hotplug.
I checked compile with memory hotplug on/off on ia64 and x86-64 box.
This patch is for 2.6.21-rc5-mm4.
Please apply.
Signed-off-by: Yasunori Goto <y-goto@...fujitsu.com>
-----------
arch/ia64/mm/discontig.c | 2 ++
arch/x86_64/mm/init.c | 6 +++---
drivers/acpi/numa.c | 4 ++--
mm/page_alloc.c | 30 +++++++++++++++---------------
mm/sparse.c | 12 +++++++-----
5 files changed, 29 insertions(+), 25 deletions(-)
Index: meminit/mm/sparse.c
===================================================================
--- meminit.orig/mm/sparse.c 2007-04-04 20:15:58.000000000 +0900
+++ meminit/mm/sparse.c 2007-04-04 20:55:44.000000000 +0900
@@ -61,7 +61,7 @@ static struct mem_section *sparse_index_
return section;
}
-static int sparse_index_init(unsigned long section_nr, int nid)
+static int __meminit sparse_index_init(unsigned long section_nr, int nid)
{
static DEFINE_SPINLOCK(index_init_lock);
unsigned long root = SECTION_NR_TO_ROOT(section_nr);
@@ -138,7 +138,7 @@ static inline int sparse_early_nid(struc
}
/* Record a memory area against a node. */
-void memory_present(int nid, unsigned long start, unsigned long end)
+void __init memory_present(int nid, unsigned long start, unsigned long end)
{
unsigned long pfn;
@@ -197,7 +197,7 @@ struct page *sparse_decode_mem_map(unsig
return ((struct page *)coded_mem_map) + section_nr_to_pfn(pnum);
}
-static int sparse_init_one_section(struct mem_section *ms,
+static int __meminit sparse_init_one_section(struct mem_section *ms,
unsigned long pnum, struct page *mem_map,
unsigned long *pageblock_bitmap)
{
@@ -211,7 +211,7 @@ static int sparse_init_one_section(struc
return 1;
}
-static struct page *sparse_early_mem_map_alloc(unsigned long pnum)
+static struct page __init *sparse_early_mem_map_alloc(unsigned long pnum)
{
struct page *map;
struct mem_section *ms = __nr_to_section(pnum);
@@ -301,7 +301,7 @@ static unsigned long *sparse_early_usema
* Allocate the accumulated non-linear sections, allocate a mem_map
* for each and record the physical to section mapping.
*/
-void sparse_init(void)
+void __init sparse_init(void)
{
unsigned long pnum;
struct page *map;
@@ -324,6 +324,7 @@ void sparse_init(void)
}
}
+#ifdef CONFIG_MEMORY_HOTPLUG
/*
* returns the number of sections whose mem_maps were properly
* set. If this is <=0, then that means that the passed-in
@@ -370,3 +371,4 @@ out:
__kfree_section_memmap(memmap, nr_pages);
return ret;
}
+#endif
Index: meminit/arch/ia64/mm/discontig.c
===================================================================
--- meminit.orig/arch/ia64/mm/discontig.c 2007-04-04 20:15:58.000000000 +0900
+++ meminit/arch/ia64/mm/discontig.c 2007-04-04 20:16:02.000000000 +0900
@@ -696,6 +696,7 @@ void __init paging_init(void)
zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
}
+#ifdef CONFIG_MEMORY_HOTPLUG
pg_data_t *arch_alloc_nodedata(int nid)
{
unsigned long size = compute_pernodesize(nid);
@@ -713,3 +714,4 @@ void arch_refresh_nodedata(int update_no
pgdat_list[update_node] = update_pgdat;
scatter_node_data();
}
+#endif
Index: meminit/mm/page_alloc.c
===================================================================
--- meminit.orig/mm/page_alloc.c 2007-04-04 20:15:58.000000000 +0900
+++ meminit/mm/page_alloc.c 2007-04-04 20:55:44.000000000 +0900
@@ -105,7 +105,7 @@ int min_free_kbytes = 1024;
unsigned long __meminitdata nr_kernel_pages;
unsigned long __meminitdata nr_all_pages;
-static unsigned long __initdata dma_reserve;
+static unsigned long __meminitdata dma_reserve;
#ifdef CONFIG_ARCH_POPULATES_NODE_MAP
/*
@@ -128,16 +128,16 @@ static unsigned long __initdata dma_rese
#endif
#endif
- struct node_active_region __initdata early_node_map[MAX_ACTIVE_REGIONS];
- int __initdata nr_nodemap_entries;
- unsigned long __initdata arch_zone_lowest_possible_pfn[MAX_NR_ZONES];
- unsigned long __initdata arch_zone_highest_possible_pfn[MAX_NR_ZONES];
+ struct node_active_region __meminitdata early_node_map[MAX_ACTIVE_REGIONS];
+ int __meminitdata nr_nodemap_entries;
+ unsigned long __meminitdata arch_zone_lowest_possible_pfn[MAX_NR_ZONES];
+ unsigned long __meminitdata arch_zone_highest_possible_pfn[MAX_NR_ZONES];
#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE
unsigned long __initdata node_boundary_start_pfn[MAX_NUMNODES];
unsigned long __initdata node_boundary_end_pfn[MAX_NUMNODES];
#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */
unsigned long __initdata required_kernelcore;
- unsigned long __initdata zone_movable_pfn[MAX_NUMNODES];
+ unsigned long __meminitdata zone_movable_pfn[MAX_NUMNODES];
/* movable_zone is the "real" zone pages in ZONE_MOVABLE are taken from */
int movable_zone;
@@ -2755,7 +2755,7 @@ __meminit int init_currently_empty_zone(
* Basic iterator support. Return the first range of PFNs for a node
* Note: nid == MAX_NUMNODES returns first region regardless of node
*/
-static int __init first_active_region_index_in_nid(int nid)
+static int __meminit first_active_region_index_in_nid(int nid)
{
int i;
@@ -2770,7 +2770,7 @@ static int __init first_active_region_in
* Basic iterator support. Return the next active range of PFNs for a node
* Note: nid == MAX_NUMNODES returns next region regardles of node
*/
-static int __init next_active_region_index_in_nid(int index, int nid)
+static int __meminit next_active_region_index_in_nid(int index, int nid)
{
for (index = index + 1; index < nr_nodemap_entries; index++)
if (nid == MAX_NUMNODES || early_node_map[index].nid == nid)
@@ -2923,7 +2923,7 @@ static void __init account_node_boundary
* with no available memory, a warning is printed and the start and end
* PFNs will be 0.
*/
-void __init get_pfn_range_for_nid(unsigned int nid,
+void __meminit get_pfn_range_for_nid(unsigned int nid,
unsigned long *start_pfn, unsigned long *end_pfn)
{
int i;
@@ -2975,7 +2975,7 @@ void __init find_usable_zone_for_movable
* highest usable zone for ZONE_MOVABLE. This preserves the assumption that
* zones within a node are in order of monotonic increases memory addresses
*/
-void __init adjust_zone_range_for_zone_movable(int nid,
+void __meminit adjust_zone_range_for_zone_movable(int nid,
unsigned long zone_type,
unsigned long node_start_pfn,
unsigned long node_end_pfn,
@@ -3005,7 +3005,7 @@ void __init adjust_zone_range_for_zone_m
* Return the number of pages a zone spans in a node, including holes
* present_pages = zone_spanned_pages_in_node() - zone_absent_pages_in_node()
*/
-unsigned long __init zone_spanned_pages_in_node(int nid,
+unsigned long __meminit zone_spanned_pages_in_node(int nid,
unsigned long zone_type,
unsigned long *ignored)
{
@@ -3036,7 +3036,7 @@ unsigned long __init zone_spanned_pages_
* Return the number of holes in a range on a node. If nid is MAX_NUMNODES,
* then all holes in the requested range will be accounted for.
*/
-unsigned long __init __absent_pages_in_range(int nid,
+unsigned long __meminit __absent_pages_in_range(int nid,
unsigned long range_start_pfn,
unsigned long range_end_pfn)
{
@@ -3096,7 +3096,7 @@ unsigned long __init absent_pages_in_ran
}
/* Return the number of page frames in holes in a zone on a node */
-unsigned long __init zone_absent_pages_in_node(int nid,
+unsigned long __meminit zone_absent_pages_in_node(int nid,
unsigned long zone_type,
unsigned long *ignored)
{
@@ -3135,7 +3135,7 @@ static inline unsigned long zone_absent_
#endif
-static void __init calculate_node_totalpages(struct pglist_data *pgdat,
+static void __meminit calculate_node_totalpages(struct pglist_data *pgdat,
unsigned long *zones_size, unsigned long *zholes_size)
{
unsigned long realtotalpages, totalpages = 0;
@@ -3279,7 +3279,7 @@ static void __meminit free_area_init_cor
}
}
-static void __init alloc_node_mem_map(struct pglist_data *pgdat)
+static void __meminit alloc_node_mem_map(struct pglist_data *pgdat)
{
/* Skip empty nodes */
if (!pgdat->node_spanned_pages)
Index: meminit/drivers/acpi/numa.c
===================================================================
--- meminit.orig/drivers/acpi/numa.c 2007-04-04 20:15:58.000000000 +0900
+++ meminit/drivers/acpi/numa.c 2007-04-04 20:56:34.000000000 +0900
@@ -228,7 +228,7 @@ int __init acpi_numa_init(void)
return 0;
}
-int acpi_get_pxm(acpi_handle h)
+int __meminit acpi_get_pxm(acpi_handle h)
{
unsigned long pxm;
acpi_status status;
@@ -246,7 +246,7 @@ int acpi_get_pxm(acpi_handle h)
}
EXPORT_SYMBOL(acpi_get_pxm);
-int acpi_get_node(acpi_handle *handle)
+int __meminit acpi_get_node(acpi_handle *handle)
{
int pxm, node = -1;
Index: meminit/arch/x86_64/mm/init.c
===================================================================
--- meminit.orig/arch/x86_64/mm/init.c 2007-04-04 20:15:58.000000000 +0900
+++ meminit/arch/x86_64/mm/init.c 2007-04-04 20:20:17.000000000 +0900
@@ -173,7 +173,7 @@ __set_fixmap (enum fixed_addresses idx,
set_pte_phys(address, phys, prot);
}
-unsigned long __initdata table_start, table_end;
+unsigned long __meminitdata table_start, table_end;
static __meminit void *alloc_low_page(unsigned long *phys)
{
@@ -205,7 +205,7 @@ static __meminit void unmap_low_page(voi
}
/* Must run before zap_low_mappings */
-__init void *early_ioremap(unsigned long addr, unsigned long size)
+__meminit void *early_ioremap(unsigned long addr, unsigned long size)
{
unsigned long vaddr;
pmd_t *pmd, *last_pmd;
@@ -234,7 +234,7 @@ __init void *early_ioremap(unsigned long
}
/* To avoid virtual aliases later */
-__init void early_iounmap(void *addr, unsigned long size)
+__meminit void early_iounmap(void *addr, unsigned long size)
{
unsigned long vaddr;
pmd_t *pmd;
--
Yasunori Goto
-
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