diff options
| author | Jiang Liu <liuj97@gmail.com> | 2013-04-29 15:07:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 15:54:32 -0700 |
| commit | 5b472b2057f5bac344a94ab85c621235202ab9a4 (patch) | |
| tree | e75988c49baf06d147fad2c50d00a0726e54dcb8 /arch/um/kernel | |
| parent | 32e1a109276e96f4caec97305167260522476e4a (diff) | |
| download | lwn-5b472b2057f5bac344a94ab85c621235202ab9a4.tar.gz lwn-5b472b2057f5bac344a94ab85c621235202ab9a4.zip | |
mm/um: use free_highmem_page() to free highmem pages into buddy system
Use helper function free_highmem_page() to free highmem pages into
the buddy system.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/kernel')
| -rw-r--r-- | arch/um/kernel/mem.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index d5ac80299cda..9df292b270a8 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -42,17 +42,12 @@ static unsigned long brk_end; static void setup_highmem(unsigned long highmem_start, unsigned long highmem_len) { - struct page *page; unsigned long highmem_pfn; int i; highmem_pfn = __pa(highmem_start) >> PAGE_SHIFT; - for (i = 0; i < highmem_len >> PAGE_SHIFT; i++) { - page = &mem_map[highmem_pfn + i]; - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - } + for (i = 0; i < highmem_len >> PAGE_SHIFT; i++) + free_highmem_page(&mem_map[highmem_pfn + i]); } #endif @@ -73,18 +68,13 @@ void __init mem_init(void) totalram_pages = free_all_bootmem(); max_low_pfn = totalram_pages; #ifdef CONFIG_HIGHMEM - totalhigh_pages = highmem >> PAGE_SHIFT; - totalram_pages += totalhigh_pages; + setup_highmem(end_iomem, highmem); #endif num_physpages = totalram_pages; max_pfn = totalram_pages; printk(KERN_INFO "Memory: %luk available\n", nr_free_pages() << (PAGE_SHIFT-10)); kmalloc_ok = 1; - -#ifdef CONFIG_HIGHMEM - setup_highmem(end_iomem, highmem); -#endif } /* |