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Blackfin arch: combine the common code of free_initrd_mem and free_initmem 

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Mike Frysinger 2007-07-12 12:32:00 +08:00 committed by Bryan Wu
parent 5610db61cf
commit 1d1894749c
1 changed files with 17 additions and 28 deletions
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45
arch/blackfin/mm/init.c
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@ -168,42 +168,31 @@ void __init mem_init(void)
}
}
static __init void free_init_pages(const char *what, unsigned long begin, unsigned long end)
{
unsigned long addr;
/* next to check that the page we free is not a partial page */
for (addr = begin; addr + PAGE_SIZE <= end; addr += PAGE_SIZE) {
ClearPageReserved(virt_to_page(addr));
init_page_count(virt_to_page(addr));
free_page(addr);
totalram_pages++;
}
printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
}
#ifdef CONFIG_BLK_DEV_INITRD
void __init free_initrd_mem(unsigned long start, unsigned long end)
{
int pages = 0;
for (; start < end; start += PAGE_SIZE) {
ClearPageReserved(virt_to_page(start));
init_page_count(virt_to_page(start));
free_page(start);
totalram_pages++;
pages++;
}
printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages);
free_init_pages("initrd memory", start, end);
}
#endif
void __init free_initmem(void)
{
#ifdef CONFIG_RAMKERNEL
unsigned long addr;
/*
* the following code should be cool even if these sections
* are not page aligned.
*/
addr = PAGE_ALIGN((unsigned long)(__init_begin));
/* next to check that the page we free is not a partial page */
for (; addr + PAGE_SIZE < (unsigned long)(__init_end);
addr += PAGE_SIZE) {
ClearPageReserved(virt_to_page(addr));
init_page_count(virt_to_page(addr));
free_page(addr);
totalram_pages++;
}
printk(KERN_NOTICE
"Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n",
(addr - PAGE_ALIGN((long)__init_begin)) >> 10,
(int)(PAGE_ALIGN((unsigned long)(__init_begin))),
(int)(addr - PAGE_SIZE));
free_init_pages("unused kernel memory",
(unsigned long)(&__init_begin),
(unsigned long)(&__init_end));
#endif
}