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yaml
---
r: 123565
b: refs/heads/master
c: 6db015e
h: refs/heads/master
i:
  123563: b5d622d
v: v3
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Nicolas Pitre authored and Russell King committed Nov 28, 2008
1 parent 6b8aad6 commit a480223
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Showing 2 changed files with 25 additions and 22 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: a1bbaec0cd2a59d4bb09b72e4541a8a12e480d5d
refs/heads/master: 6db015e49c03d42247d2a985475b833635406a4f
45 changes: 24 additions & 21 deletions trunk/arch/arm/mm/init.c
Original file line number Diff line number Diff line change
Expand Up @@ -394,20 +394,22 @@ void __init bootmem_init(void)
max_pfn = max_low_pfn = memend_pfn - PHYS_PFN_OFFSET;
}

static inline void free_area(unsigned long addr, unsigned long end, char *s)
static inline int free_area(unsigned long pfn, unsigned long end, char *s)
{
unsigned int size = (end - addr) >> 10;
unsigned int pages = 0, size = (end - pfn) << (PAGE_SHIFT - 10);

for (; addr < end; addr += PAGE_SIZE) {
struct page *page = virt_to_page(addr);
for (; pfn < end; pfn++) {
struct page *page = pfn_to_page(pfn);
ClearPageReserved(page);
init_page_count(page);
free_page(addr);
totalram_pages++;
__free_page(page);
pages++;
}

if (size && s)
printk(KERN_INFO "Freeing %s memory: %dK\n", s, size);

return pages;
}

static inline void
Expand Down Expand Up @@ -478,13 +480,9 @@ static void __init free_unused_memmap_node(int node, struct meminfo *mi)
*/
void __init mem_init(void)
{
unsigned int codepages, datapages, initpages;
unsigned int codesize, datasize, initsize;
int i, node;

codepages = &_etext - &_text;
datapages = &_end - &__data_start;
initpages = &__init_end - &__init_begin;

#ifndef CONFIG_DISCONTIGMEM
max_mapnr = virt_to_page(high_memory) - mem_map;
#endif
Expand All @@ -501,26 +499,30 @@ void __init mem_init(void)

#ifdef CONFIG_SA1111
/* now that our DMA memory is actually so designated, we can free it */
free_area(PAGE_OFFSET, (unsigned long)swapper_pg_dir, NULL);
totalram_pages += free_area(PHYS_PFN_OFFSET,
__phys_to_pfn(__pa(swapper_pg_dir)), NULL);
#endif

/*
* Since our memory may not be contiguous, calculate the
* real number of pages we have in this system
*/
printk(KERN_INFO "Memory:");

num_physpages = 0;
for (i = 0; i < meminfo.nr_banks; i++) {
num_physpages += bank_pfn_size(&meminfo.bank[i]);
printk(" %ldMB", bank_phys_size(&meminfo.bank[i]) >> 20);
}

printk(" = %luMB total\n", num_physpages >> (20 - PAGE_SHIFT));

codesize = &_etext - &_text;
datasize = &_end - &__data_start;
initsize = &__init_end - &__init_begin;

printk(KERN_NOTICE "Memory: %luKB available (%dK code, "
"%dK data, %dK init)\n",
(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
codepages >> 10, datapages >> 10, initpages >> 10);
codesize >> 10, datasize >> 10, initsize >> 10);

if (PAGE_SIZE >= 16384 && num_physpages <= 128) {
extern int sysctl_overcommit_memory;
Expand All @@ -535,11 +537,10 @@ void __init mem_init(void)

void free_initmem(void)
{
if (!machine_is_integrator() && !machine_is_cintegrator()) {
free_area((unsigned long)(&__init_begin),
(unsigned long)(&__init_end),
"init");
}
if (!machine_is_integrator() && !machine_is_cintegrator())
totalram_pages += free_area(__phys_to_pfn(__pa(&__init_begin)),
__phys_to_pfn(__pa(&__init_end)),
"init");
}

#ifdef CONFIG_BLK_DEV_INITRD
Expand All @@ -549,7 +550,9 @@ static int keep_initrd;
void free_initrd_mem(unsigned long start, unsigned long end)
{
if (!keep_initrd)
free_area(start, end, "initrd");
totalram_pages += free_area(__phys_to_pfn(__pa(start)),
__phys_to_pfn(__pa(end)),
"initrd");
}

static int __init keepinitrd_setup(char *__unused)
Expand Down

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