diff options
| author | Keith Mannthey <kmannth@us.ibm.com> | 2006-09-30 23:27:06 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-01 00:39:18 -0700 |
| commit | 4942e998b40b8f6080930ec16442444e9930aee5 (patch) | |
| tree | 7b321e7e632dddb88539dd2e22c3b4ad06fae4f2 /arch/x86_64/mm/srat.c | |
| parent | 71efa8fdc55e70ec6687c897a30759f0a2c2ad7e (diff) | |
| download | linux-4942e998b40b8f6080930ec16442444e9930aee5.tar.gz | |
[PATCH] hot-add-mem x86_64: memory_add_physaddr_to_nid enable
The api for hot-add memory already has a construct for finding nodes based on
an address, memory_add_physaddr_to_nid. This patch allows the fucntion to do
something besides return 0. It uses the nodes_add infomation to lookup to
node info for a hot add event.
Signed-off-by: Keith Mannthey <kmannth@us.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/mm/srat.c')
| -rw-r--r-- | arch/x86_64/mm/srat.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c index 19396a261e8d0..8491300ef909a 100644 --- a/arch/x86_64/mm/srat.c +++ b/arch/x86_64/mm/srat.c @@ -27,7 +27,7 @@ static struct acpi_table_slit *acpi_slit; static nodemask_t nodes_parsed __initdata; static struct bootnode nodes[MAX_NUMNODES] __initdata; -static struct bootnode nodes_add[MAX_NUMNODES] __initdata; +static struct bootnode nodes_add[MAX_NUMNODES]; static int found_add_area __initdata; int hotadd_percent __initdata = 0; @@ -466,3 +466,14 @@ int __node_distance(int a, int b) } EXPORT_SYMBOL(__node_distance); + +int memory_add_physaddr_to_nid(u64 start) +{ + int i, ret = 0; + + for_each_node(i) + if (nodes_add[i].start <= start && nodes_add[i].end > start) + ret = i; + + return ret; +} |