android_kernel_motorola_sm6225/arch/sh
KAMEZAWA Hiroyuki 76b67ed9dc [PATCH] node hotplug: register cpu: remove node struct
With Goto-san's patch, we can add new pgdat/node at runtime.  I'm now
considering node-hot-add with cpu + memory on ACPI.

I found acpi container, which describes node, could evaluate cpu before
memory. This means cpu-hot-add occurs before memory hot add.

In most part, cpu-hot-add doesn't depend on node hot add.  But register_cpu(),
which creates symbolic link from node to cpu, requires that node should be
onlined before register_cpu().  When a node is onlined, its pgdat should be
there.

This patch-set holds off creating symbolic link from node to cpu
until node is onlined.

This removes node arguments from register_cpu().

Now, register_cpu() requires 'struct node' as its argument.  But the array of
struct node is now unified in driver/base/node.c now (By Goto's node hotplug
patch).  We can get struct node in generic way.  So, this argument is not
necessary now.

This patch also guarantees add cpu under node only when node is onlined.  It
is necessary for node-hot-add vs.  cpu-hot-add patch following this.

Moreover, register_cpu calculates cpu->node_id by cpu_to_node() without regard
to its 'struct node *root' argument.  This patch removes it.

Also modify callers of register_cpu()/unregister_cpu, whose args are changed
by register-cpu-remove-node-struct patch.

[Brice.Goglin@ens-lyon.org: fix it]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Brice Goglin <Brice.Goglin@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:37 -07:00
..
boards [PATCH] RTC: Remove some duplicate BCD definitions 2006-03-28 09:16:01 -08:00
boot Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cchips [PATCH] sh: convert voyagergx to platform device, drop sh-bus 2006-02-01 08:53:20 -08:00
configs [PATCH] sh: SH4-202 microdev updates 2006-02-01 08:53:19 -08:00
drivers [PATCH] sh: DMA updates 2006-01-16 23:15:27 -08:00
kernel [PATCH] node hotplug: register cpu: remove node struct 2006-06-27 17:32:37 -07:00
lib [PATCH] smp_processor_id() cleanup 2005-06-21 18:46:13 -07:00
mm [PATCH] hugepage: is_aligned_hugepage_range() cleanup 2006-03-22 07:54:04 -08:00
oprofile [PATCH] oprofile: Fix unnecessary cleverness 2006-06-26 09:58:17 -07:00
tools [PATCH] sh: consolidate hp620/hp680/hp690 targets into hp6xx 2006-01-16 23:15:27 -08:00
Kconfig [PATCH] Configurable NODES_SHIFT 2006-04-11 06:18:39 -07:00
Kconfig.debug [PATCH] sh: Move CPU subtype configuration to its own Kconfig 2006-01-16 23:15:28 -08:00
Makefile kconfig: integrate split config into silentoldconfig 2006-06-09 07:31:30 +02:00