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authorWu Fengguang <fengguang.wu@intel.com>2010-01-22 16:16:19 +0800
committerH. Peter Anvin <hpa@zytor.com>2010-02-01 16:58:17 -0800
commit61ef2489dbf587258526cfd4ebf4bba3b079f401 (patch)
tree4806ed052c73d84821d958f306699b2a27da965e /arch/score
parentccef086454d4c97e7b722e9303390207d681cb4c (diff)
downloadlinux-2.6.38-lt-ux500-61ef2489dbf587258526cfd4ebf4bba3b079f401.tar.gz
resources: introduce generic page_is_ram()
It's based on walk_system_ram_range(), for archs that don't have their own page_is_ram(). The static verions in MIPS and SCORE are also made global. v4: prefer plain 1 instead of PAGE_IS_RAM (H. Peter Anvin) v3: add comment (KAMEZAWA Hiroyuki) "AFAIK, this "System RAM" information has been used for kdump to grab valid memory area and seems good for the kernel itself." v2: add PAGE_IS_RAM macro (Américo Wang) Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Américo Wang <xiyou.wangcong@gmail.com> Cc: linux-mips@linux-mips.org Cc: Yinghai Lu <yinghai@kernel.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> LKML-Reference: <20100122081619.GA6431@localhost> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/score')
-rw-r--r--arch/score/mm/init.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/score/mm/init.c b/arch/score/mm/init.c
index 4e3dcd0c471..f684a590c21 100644
--- a/arch/score/mm/init.c
+++ b/arch/score/mm/init.c
@@ -59,7 +59,7 @@ static unsigned long setup_zero_page(void)
}
#ifndef CONFIG_NEED_MULTIPLE_NODES
-static int __init page_is_ram(unsigned long pagenr)
+int page_is_ram(unsigned long pagenr)
{
if (pagenr >= min_low_pfn && pagenr < max_low_pfn)
return 1;