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| author | KAMEZAWA Hiroyuki | 2009-09-23 01:45:48 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2009-09-23 16:39:41 +0200 |
| commit | 3089aa1b0c07fb7c48f9829c619f50198307789d (patch) | |
| tree | 63677c773c559458ba301bd448ecce6e007b6742 /arch/x86/mm/init_64.c | |
| parent | walk system ram range (diff) | |
| download | kernel-qcow2-linux-3089aa1b0c07fb7c48f9829c619f50198307789d.tar.gz kernel-qcow2-linux-3089aa1b0c07fb7c48f9829c619f50198307789d.tar.xz kernel-qcow2-linux-3089aa1b0c07fb7c48f9829c619f50198307789d.zip | |
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 <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/mm/init_64.c')
| -rw-r--r-- | arch/x86/mm/init_64.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index a0c2efb10cbe..d5d23cc24076 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -647,7 +647,7 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); #endif /* CONFIG_MEMORY_HOTPLUG */ -static struct kcore_list kcore_mem, kcore_modules, kcore_vsyscall; +static struct kcore_list kcore_modules, kcore_vsyscall; void __init mem_init(void) { @@ -676,7 +676,6 @@ void __init mem_init(void) initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; /* Register memory areas for /proc/kcore */ - kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM); kclist_add(&kcore_modules, (void *)MODULES_VADDR, MODULES_LEN, KCORE_OTHER); kclist_add(&kcore_vsyscall, (void *)VSYSCALL_START, |