diff options
| author | Randy Dunlap | 2006-06-27 02:53:52 -0700 |
|---|---|---|
| committer | Linus Torvalds | 2006-06-27 17:32:38 -0700 |
| commit | c9cf55285e87ac423c45d9efca750d3f50234d10 (patch) | |
| tree | d46f3e90fbb38115c25b3315f6280ad65f83a14f /arch/x86_64/mm | |
| parent | e6e5494cb23d1933735ee47cc674ffe1c4afed6f (diff) | |
[PATCH] add poison.h and patch primary users
Localize poison values into one header file for better documentation and
easier/quicker debugging and so that the same values won't be used for
multiple purposes.
Use these constants in core arch., mm, driver, and fs code.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Matt Mackall <mpm@selenic.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/mm')
| -rw-r--r-- | arch/x86_64/mm/init.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c index 51fbf3eddf13..95bd232ff0cf 100644 --- a/arch/x86_64/mm/init.c +++ b/arch/x86_64/mm/init.c @@ -23,6 +23,7 @@ #include <linux/bootmem.h> #include <linux/proc_fs.h> #include <linux/pci.h> +#include <linux/poison.h> #include <linux/dma-mapping.h> #include <linux/module.h> #include <linux/memory_hotplug.h> @@ -660,7 +661,8 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) for (addr = begin; addr < end; addr += PAGE_SIZE) { ClearPageReserved(virt_to_page(addr)); init_page_count(virt_to_page(addr)); - memset((void *)(addr & ~(PAGE_SIZE-1)), 0xcc, PAGE_SIZE); + memset((void *)(addr & ~(PAGE_SIZE-1)), + POISON_FREE_INITMEM, PAGE_SIZE); free_page(addr); totalram_pages++; } @@ -668,7 +670,8 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) void free_initmem(void) { - memset(__initdata_begin, 0xba, __initdata_end - __initdata_begin); + memset(__initdata_begin, POISON_FREE_INITDATA, + __initdata_end - __initdata_begin); free_init_pages("unused kernel memory", (unsigned long)(&__init_begin), (unsigned long)(&__init_end)); |