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[MIPS] Cleanup free_initmem the same way as i386 did.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2006-03-24 13:21:50 +00:00
parent 18b68e1561
commit 6fd11a2173
1 changed files with 23 additions and 25 deletions
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48
arch/mips/mm/init.c
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@ -276,6 +276,20 @@ void __init mem_init(void)
}
#endif /* !CONFIG_NEED_MULTIPLE_NODES */
void free_init_pages(char *what, unsigned long begin, unsigned long end)
{
unsigned long addr;
for (addr = begin; addr < end; addr += PAGE_SIZE) {
ClearPageReserved(virt_to_page(addr));
init_page_count(virt_to_page(addr));
memset((void *)addr, 0xcc, PAGE_SIZE);
free_page(addr);
totalram_pages++;
}
printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
}
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
@ -284,16 +298,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
start = (unsigned long)phys_to_virt(CPHYSADDR(start));
end = (unsigned long)phys_to_virt(CPHYSADDR(end));
#endif
if (start < end)
printk(KERN_INFO "Freeing initrd memory: %ldk freed\n",
(end - start) >> 10);
for (; start < end; start += PAGE_SIZE) {
ClearPageReserved(virt_to_page(start));
init_page_count(virt_to_page(start));
free_page(start);
totalram_pages++;
}
free_init_pages("initrd memory", start, end);
}
#endif
@ -301,24 +306,17 @@ extern unsigned long prom_free_prom_memory(void);
void free_initmem(void)
{
unsigned long addr, page, freed;
unsigned long start, end, freed;
freed = prom_free_prom_memory();
if (freed)
printk(KERN_INFO "Freeing firmware memory: %ldk freed\n",freed);
addr = (unsigned long) &__init_begin;
while (addr < (unsigned long) &__init_end) {
start = (unsigned long)(&__init_begin);
end = (unsigned long)(&__init_end);
#ifdef CONFIG_64BIT
page = PAGE_OFFSET | CPHYSADDR(addr);
#else
page = addr;
start = PAGE_OFFSET | CPHYSADDR(start);
end = PAGE_OFFSET | CPHYSADDR(end);
#endif
ClearPageReserved(virt_to_page(page));
init_page_count(virt_to_page(page));
free_page(page);
totalram_pages++;
freed += PAGE_SIZE;
addr += PAGE_SIZE;
}
printk(KERN_INFO "Freeing unused kernel memory: %ldk freed\n",
freed >> 10);
free_init_pages("unused kernel memory", start, end);
}