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authorMel Gorman <mel@skynet.ie>2006-09-27 01:49:58 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-27 08:26:11 -0700
commit9c7cd6877cf8db15269163deda69392263124c1e (patch)
treeff5197bdd2d5f02a5032c050eb39349534a4b14b /arch/x86_64/mm
parent0e0b864e069c52a7b3e4a7da56e29b03a012fd75 (diff)
[PATCH] Account for holes that are outside the range of physical memory
absent_pages_in_range() made the assumption that users of the API would not care about holes beyound the end of physical memory. This was not the case. This patch will account for ranges outside of physical memory as holes correctly. Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Andi Kleen <ak@muc.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "Keith Mannthey" <kmannth@gmail.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> 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/srat.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index 7b50bb1caabe..db1b2e11cf8f 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -227,7 +227,9 @@ static int reserve_hotadd(int node, unsigned long start, unsigned long end)
/* This check might be a bit too strict, but I'm keeping it for now. */
if (absent_pages_in_range(s_pfn, e_pfn) != e_pfn - s_pfn) {
- printk(KERN_ERR "SRAT: Hotplug area has existing memory\n");
+ printk(KERN_ERR
+ "SRAT: Hotplug area %lu -> %lu has existing memory\n",
+ s_pfn, e_pfn);
return -1;
}