aboutsummaryrefslogtreecommitdiff
path: root/arch/arm64/mm
diff options
context:
space:
mode:
authorJiang Liu <liuj97@gmail.com>2013-04-29 15:06:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 15:54:29 -0700
commit83db0384a92ac4e52dccd275bc1a58dca86d629d (patch)
treeb09b3200b227acac7f5be12d58a9878a40be3e8e /arch/arm64/mm
parentf3beeb4a51d3aa16571e6c3774b929209e9956bf (diff)
downloadlinux-83db0384a92ac4e52dccd275bc1a58dca86d629d.tar.gz
mm/ARM: use common help functions to free reserved pages
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm64/mm')
-rw-r--r--arch/arm64/mm/init.c26
1 files changed, 2 insertions, 24 deletions
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 800aac306a0..f497ca77925 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -197,24 +197,6 @@ void __init bootmem_init(void)
max_pfn = max_low_pfn = max;
}
-static inline int free_area(unsigned long pfn, unsigned long end, char *s)
-{
- unsigned int pages = 0, size = (end - pfn) << (PAGE_SHIFT - 10);
-
- for (; pfn < end; pfn++) {
- struct page *page = pfn_to_page(pfn);
- ClearPageReserved(page);
- init_page_count(page);
- __free_page(page);
- pages++;
- }
-
- if (size && s)
- pr_info("Freeing %s memory: %dK\n", s, size);
-
- return pages;
-}
-
/*
* Poison init memory with an undefined instruction (0x0).
*/
@@ -405,9 +387,7 @@ void __init mem_init(void)
void free_initmem(void)
{
poison_init_mem(__init_begin, __init_end - __init_begin);
- totalram_pages += free_area(__phys_to_pfn(__pa(__init_begin)),
- __phys_to_pfn(__pa(__init_end)),
- "init");
+ free_initmem_default(0);
}
#ifdef CONFIG_BLK_DEV_INITRD
@@ -418,9 +398,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
{
if (!keep_initrd) {
poison_init_mem((void *)start, PAGE_ALIGN(end) - start);
- totalram_pages += free_area(__phys_to_pfn(__pa(start)),
- __phys_to_pfn(__pa(end)),
- "initrd");
+ free_reserved_area(start, end, 0, "initrd");
}
}