diff options
| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2009-09-22 23:45:48 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 14:39:41 (GMT) |
| commit | 3089aa1b0c07fb7c48f9829c619f50198307789d (patch) | |
| tree | 63677c773c559458ba301bd448ecce6e007b6742 /arch/x86/mm | |
| parent | 908eedc6168bd92e89f90d89fa389065a36358fa (diff) | |
| download | linux-fsl-qoriq-3089aa1b0c07fb7c48f9829c619f50198307789d.tar.xz | |
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')
| -rw-r--r-- | arch/x86/mm/init_32.c | 4 | ||||
| -rw-r--r-- | arch/x86/mm/init_64.c | 3 |
2 files changed, 1 insertions, 6 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 7108678..30938c1 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -857,8 +857,6 @@ static void __init test_wp_bit(void) } } -static struct kcore_list kcore_mem; - void __init mem_init(void) { int codesize, reservedpages, datasize, initsize; @@ -886,8 +884,6 @@ void __init mem_init(void) datasize = (unsigned long) &_edata - (unsigned long) &_etext; initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT, KCORE_RAM); - printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, " "%dk reserved, %dk data, %dk init, %ldk highmem)\n", nr_free_pages() << (PAGE_SHIFT-10), diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index a0c2efb..d5d23cc 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, |