diff options
| author | Dave Carroll <dcarroll@astekcorp.com> | 2011-06-18 07:36:39 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-06-30 15:28:05 +1000 |
| commit | 2773fcc8c48b947c997ff345f3e453917883cdb5 (patch) | |
| tree | d0b526f25efa465236bce0ab31c3e89dc79a1462 /arch/powerpc/mm/mem.c | |
| parent | 6da49a292534d31ca391928ea97f8225774dc1e0 (diff) | |
| download | linux-2773fcc8c48b947c997ff345f3e453917883cdb5.tar.bz2 | |
powerpc: Move free_initmem to common code
The free_initmem function is basically duplicated in mm/init_32,
and init_64, and is moved to the common 32/64-bit mm/mem.c.
All other sections except init were removed in v2.6.15 by
6c45ab992e4299c869fb26427944a8f8ea177024 (powerpc: Remove section
free() and linker script bits), and therefore the bulk of the executed
code is identical.
This patch also removes updating ppc_md.progress to NULL in the powermac
late_initcall.
Suggested-by: Milton Miller <miltonm@bga.com>
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Carroll <dcarroll@astekcorp.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm/mem.c')
| -rw-r--r-- | arch/powerpc/mm/mem.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 89cbfef5a7dd..e9379ce6f3be 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -383,6 +383,25 @@ void __init mem_init(void) mem_init_done = 1; } +void free_initmem(void) +{ + unsigned long addr; + + ppc_md.progress = NULL; + + addr = (unsigned long)__init_begin; + for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) { + memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE); + ClearPageReserved(virt_to_page(addr)); + init_page_count(virt_to_page(addr)); + free_page(addr); + totalram_pages++; + } + pr_info("Freeing unused kernel memory: %luk freed\n", + ((unsigned long)__init_end - + (unsigned long)__init_begin) >> 10); +} + #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { |