From 3089aa1b0c07fb7c48f9829c619f50198307789d Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 22 Sep 2009 16:45:48 -0700 Subject: kcore: use registerd physmem information For /proc/kcore, each arch registers its memory range by kclist_add(). In usual, - range of physical memory - range of vmalloc area - text, etc... are registered but "range of physical memory" has some troubles. It doesn't updated at memory hotplug and it tend to include unnecessary memory holes. Now, /proc/iomem (kernel/resource.c) includes required physical memory range information and it's properly updated at memory hotplug. Then, it's good to avoid using its own code(duplicating information) and to rebuild kclist for physical memory based on /proc/iomem. Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Jiri Slaby Cc: Ralf Baechle Cc: Benjamin Herrenschmidt Cc: WANG Cong Cc: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/mm/init_64.c | 26 -------------------------- 1 file changed, 26 deletions(-) (limited to 'arch/powerpc/mm/init_64.c') diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index 87ef492a1a5d..335c578b9cc3 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -109,32 +109,6 @@ void free_initrd_mem(unsigned long start, unsigned long end) } #endif -#ifdef CONFIG_PROC_KCORE - -static int __init setup_kcore(void) -{ - int i; - - for (i=0; i < lmb.memory.cnt; i++) { - unsigned long base, size; - struct kcore_list *kcore_mem; - - base = lmb.memory.region[i].base; - size = lmb.memory.region[i].size; - - /* GFP_ATOMIC to avoid might_sleep warnings during boot */ - kcore_mem = kmalloc(sizeof(struct kcore_list), GFP_ATOMIC); - if (!kcore_mem) - panic("%s: kmalloc failed\n", __func__); - - kclist_add(kcore_mem, __va(base), size, KCORE_RAM); - } - - return 0; -} -module_init(setup_kcore); -#endif - static void pgd_ctor(void *addr) { memset(addr, 0, PGD_TABLE_SIZE); -- cgit v1.2.3