diff options
author | Greg Ungerer <gerg@uclinux.org> | 2011-03-29 03:39:47 (GMT) |
---|---|---|
committer | Greg Ungerer <gerg@uclinux.org> | 2011-05-24 00:03:51 (GMT) |
commit | b1ffa25925c8166003d985b2803854fedcd44604 (patch) | |
tree | 873e8350e8c98603bd27b5ae73057ea86e69150c /arch/m68k | |
parent | f225c8675086b60d85264ef824568309163d79f8 (diff) | |
download | linux-b1ffa25925c8166003d985b2803854fedcd44604.tar.xz |
m68knommu: clean up mm/init_no.c
The memory initialization code for m68knommu has grown a bit crufty,
clean it up.
. remove unused declaration for die_if_kernel()
. remove un-needed declaration of free_initmem()
. removed unused definitions of empty_bad_page and empty_bad_page_table
. removed unused DEBUG code
. make free_initmem() proper prototype
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r-- | arch/m68k/mm/init_no.c | 51 |
1 files changed, 4 insertions, 47 deletions
diff --git a/arch/m68k/mm/init_no.c b/arch/m68k/mm/init_no.c index 8a6653f..7cbd7bd 100644 --- a/arch/m68k/mm/init_no.c +++ b/arch/m68k/mm/init_no.c @@ -38,28 +38,10 @@ #include <asm/system.h> #include <asm/machdep.h> -#undef DEBUG - -extern void die_if_kernel(char *,struct pt_regs *,long); -extern void free_initmem(void); - /* - * BAD_PAGE is the page that is used for page faults when linux - * is out-of-memory. Older versions of linux just did a - * do_exit(), but using this instead means there is less risk - * for a process dying in kernel mode, possibly leaving a inode - * unused etc.. - * - * BAD_PAGETABLE is the accompanying page-table: it is initialized - * to point to BAD_PAGE entries. - * * ZERO_PAGE is a special page that is used for zero-initialized * data and COW. */ -static unsigned long empty_bad_page_table; - -static unsigned long empty_bad_page; - unsigned long empty_zero_page; extern unsigned long memory_start; @@ -77,22 +59,9 @@ void __init paging_init(void) * Make sure start_mem is page aligned, otherwise bootmem and * page_alloc get different views of the world. */ -#ifdef DEBUG - unsigned long start_mem = PAGE_ALIGN(memory_start); -#endif unsigned long end_mem = memory_end & PAGE_MASK; + unsigned long zones_size[MAX_NR_ZONES] = {0, }; -#ifdef DEBUG - printk (KERN_DEBUG "start_mem is %#lx\nvirtual_end is %#lx\n", - start_mem, end_mem); -#endif - - /* - * Initialize the bad page table and bad page to point - * to a couple of allocated pages. - */ - empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); - empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); memset((void *)empty_zero_page, 0, PAGE_SIZE); @@ -101,19 +70,8 @@ void __init paging_init(void) */ set_fs (USER_DS); -#ifdef DEBUG - printk (KERN_DEBUG "before free_area_init\n"); - - printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n", - start_mem, end_mem); -#endif - - { - unsigned long zones_size[MAX_NR_ZONES] = {0, }; - - zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT; - free_area_init(zones_size); - } + zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT; + free_area_init(zones_size); } void __init mem_init(void) @@ -166,8 +124,7 @@ void free_initrd_mem(unsigned long start, unsigned long end) } #endif -void -free_initmem() +void free_initmem(void) { #ifdef CONFIG_RAMKERNEL unsigned long addr; |