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| author | Jiang Liu <liuj97@gmail.com> | 2013-04-29 15:06:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 15:54:30 -0700 |
| commit | 8be65857f2a4c1f83ef6d2714b7a6428a6fa386c (patch) | |
| tree | bfee37972000c8caa42a5aabda73d8026f7f1b31 /arch | |
| parent | 66f62594216a8df661239e233736997dba074bbe (diff) | |
| download | linux-8be65857f2a4c1f83ef6d2714b7a6428a6fa386c.tar.gz | |
mm/m32r: use common help functions to free reserved pages
Use common help functions to free reserved pages. Also include <asm/sections.h> to avoid local declarations. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/m32r/mm/init.c | 26 |
1 files changed, 3 insertions, 23 deletions
diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index 78b660e903da..ab4cbce91a9b 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c @@ -28,10 +28,7 @@ #include <asm/mmu_context.h> #include <asm/setup.h> #include <asm/tlb.h> - -/* References to section boundaries */ -extern char _text, _etext, _edata; -extern char __init_begin, __init_end; +#include <asm/sections.h> pgd_t swapper_pg_dir[1024]; @@ -184,17 +181,7 @@ void __init mem_init(void) *======================================================================*/ void free_initmem(void) { - unsigned long addr; - - addr = (unsigned long)(&__init_begin); - for (; addr < (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_INFO "Freeing unused kernel memory: %dk freed\n", \ - (int)(&__init_end - &__init_begin) >> 10); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD @@ -204,13 +191,6 @@ void free_initmem(void) *======================================================================*/ void free_initrd_mem(unsigned long start, unsigned long end) { - unsigned long p; - for (p = start; p < end; p += PAGE_SIZE) { - ClearPageReserved(virt_to_page(p)); - init_page_count(virt_to_page(p)); - free_page(p); - totalram_pages++; - } - printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10); + free_reserved_area(start, end, 0, "initrd"); } #endif |