[PATCH] don't align initmem poisoning

[PATCH] don't align initmem poisoning

[Dave Hansen]

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The recent initmem poison patch tries to page-align the address that it
memsets.  I think this is unnecessary because __init_begin is
page-aligned already in the linker script:

  /* will be freed after init */
  . = ALIGN(4096);              /* Init code and data */
  __init_begin = .;
  .init.text : {

-- Dave

[-- Attachment #2: A1-no-page-align-init-poison.patch --]
[-- Type: text/x-patch, Size: 751 bytes --]


Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
---

 memhotplug-dave/arch/i386/mm/init.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN arch/i386/mm/init.c~A1-no-page-align-init-poison arch/i386/mm/init.c
--- memhotplug/arch/i386/mm/init.c~A1-no-page-align-init-poison	2004-10-07 11:28:46.000000000 -0700
+++ memhotplug-dave/arch/i386/mm/init.c	2004-10-07 11:30:05.000000000 -0700
@@ -723,7 +723,7 @@ void free_initmem(void)
 	for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
 		ClearPageReserved(virt_to_page(addr));
 		set_page_count(virt_to_page(addr), 1);
-		memset((void *)(addr & ~(PAGE_SIZE-1)), 0xcc, PAGE_SIZE);
+		memset((void *)addr, 0xcc, PAGE_SIZE);
 		free_page(addr);
 		totalram_pages++;
 	}
_