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mm/IA64: prepare for removing num_physpages and simplify mem_init() 

Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiang Liu 2013-07-03 15:03:58 -07:00 committed by Linus Torvalds
parent 5dc355c146
commit de4bcddc13
3 changed files with 1 additions and 40 deletions
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11
arch/ia64/mm/contig.c
View File

@ -295,14 +295,6 @@ find_memory (void)
alloc_per_cpu_data();
}
static int count_pages(u64 start, u64 end, void *arg)
{
unsigned long *count = arg;
*count += (end - start) >> PAGE_SHIFT;
return 0;
}
/*
* Set up the page tables.
*/
@ -313,9 +305,6 @@ paging_init (void)
unsigned long max_dma;
unsigned long max_zone_pfns[MAX_NR_ZONES];
num_physpages = 0;
efi_memmap_walk(count_pages, &num_physpages);
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
#ifdef CONFIG_ZONE_DMA
max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;

3
arch/ia64/mm/discontig.c
View File

@ -37,7 +37,6 @@ struct early_node_data {
struct ia64_node_data *node_data;
unsigned long pernode_addr;
unsigned long pernode_size;
unsigned long num_physpages;
#ifdef CONFIG_ZONE_DMA
unsigned long num_dma_physpages;
#endif
@ -732,7 +731,6 @@ static __init int count_node_pages(unsigned long start, unsigned long len, int n
{
unsigned long end = start + len;
mem_data[node].num_physpages += len >> PAGE_SHIFT;
#ifdef CONFIG_ZONE_DMA
if (start <= __pa(MAX_DMA_ADDRESS))
mem_data[node].num_dma_physpages +=
@ -778,7 +776,6 @@ void __init paging_init(void)
#endif
for_each_online_node(node) {
num_physpages += mem_data[node].num_physpages;
pfn_offset = mem_data[node].min_pfn;
#ifdef CONFIG_VIRTUAL_MEM_MAP

27
arch/ia64/mm/init.c
View File

@ -545,19 +545,6 @@ int __init register_active_ranges(u64 start, u64 len, int nid)
return 0;
}
static int __init
count_reserved_pages(u64 start, u64 end, void *arg)
{
unsigned long num_reserved = 0;
unsigned long *count = arg;
for (; start < end; start += PAGE_SIZE)
if (PageReserved(virt_to_page(start)))
++num_reserved;
*count += num_reserved;
return 0;
}
int
find_max_min_low_pfn (u64 start, u64 end, void *arg)
{
@ -596,7 +583,6 @@ __setup("nolwsys", nolwsys_setup);
void __init
mem_init (void)
{
long reserved_pages, codesize, datasize, initsize;
pg_data_t *pgdat;
int i;
@ -624,18 +610,7 @@ mem_init (void)
if (pgdat->bdata->node_bootmem_map)
free_all_bootmem_node(pgdat);
reserved_pages = 0;
efi_memmap_walk(count_reserved_pages, &reserved_pages);
codesize = (unsigned long) _etext - (unsigned long) _stext;
datasize = (unsigned long) _edata - (unsigned long) _etext;
initsize = (unsigned long) __init_end - (unsigned long) __init_begin;
printk(KERN_INFO "Memory: %luk/%luk available (%luk code, %luk reserved, "
"%luk data, %luk init)\n", nr_free_pages() << (PAGE_SHIFT - 10),
num_physpages << (PAGE_SHIFT - 10), codesize >> 10,
reserved_pages << (PAGE_SHIFT - 10), datasize >> 10, initsize >> 10);
mem_init_print_info(NULL);
/*
* For fsyscall entrpoints with no light-weight handler, use the ordinary