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mm/arc: use common help functions to free reserved pages

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Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <[email protected]>
Acked-by: Vineet Gupta <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Jiang Liu 2013-04-29 15:06:56 -07:00 • committed by Linus Torvalds
commit d2309a1996
1 changed files with 2 additions and 21 deletions
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23
arch/arc/mm/init.c
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@ -144,37 +144,18 @@ void __init mem_init(void)
PAGES_TO_KB(reserved_pages));
}
static void __init free_init_pages(const char *what, unsigned long begin,
unsigned long end)
{
unsigned long addr;
pr_info("Freeing %s: %ldk [%lx] to [%lx]\n",
what, TO_KB(end - begin), begin, end);
/* need 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++;
}
}
/*
* free_initmem: Free all the __init memory.
*/
void __init_refok free_initmem(void)
{
free_init_pages("unused kernel memory",
(unsigned long)__init_begin,
(unsigned long)__init_end);
free_initmem_default(0);
}
#ifdef CONFIG_BLK_DEV_INITRD
void __init free_initrd_mem(unsigned long start, unsigned long end)
{
free_init_pages("initrd memory", start, end);
free_reserved_area(start, end, 0, "initrd");
}
#endif