lkml.org 
[lkml]   [2006]   [Mar]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[PATCH: 017/017]Memory hotplug for new nodes v.4.(arch_register_node() for ia64)

    This is to create sysfs file for new node.
    It adds arch specific functions 'arch_register_node()'
    and 'arch_unregister_node()' to IA64 to call the generic
    function 'register_node()' and 'unregister_node()' respectively.


    Signed-off-by: Keiichiro Tokunaga <tokuanga.keiich@jp.fujitsu.com>
    Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>

    arch/ia64/kernel/topology.c | 15 +++++++++++++++
    include/linux/node.h | 2 ++
    2 files changed, 17 insertions(+)

    Index: pgdat8/arch/ia64/kernel/topology.c
    ===================================================================
    --- pgdat8.orig/arch/ia64/kernel/topology.c 2006-03-16 16:04:54.000000000 +0900
    +++ pgdat8/arch/ia64/kernel/topology.c 2006-03-16 16:06:27.000000000 +0900
    @@ -65,6 +65,21 @@ EXPORT_SYMBOL(arch_register_cpu);
    EXPORT_SYMBOL(arch_unregister_cpu);
    #endif /*CONFIG_HOTPLUG_CPU*/

    +#ifdef CONFIG_NUMA
    +int arch_register_node(int num)
    +{
    + if (sysfs_nodes[num].sysdev.id == num)
    + return 0;
    +
    + return register_node(&sysfs_nodes[num], num, 0);
    +}
    +
    +void arch_unregister_node(int num)
    +{
    + unregister_node(&sysfs_nodes[num]);
    + sysfs_nodes[num].sysdev.id = -1;
    +}
    +#endif

    static int __init topology_init(void)
    {
    Index: pgdat8/include/linux/node.h
    ===================================================================
    --- pgdat8.orig/include/linux/node.h 2006-03-16 16:04:54.000000000 +0900
    +++ pgdat8/include/linux/node.h 2006-03-16 16:06:27.000000000 +0900
    @@ -28,6 +28,8 @@ struct node {

    extern int register_node(struct node *, int, struct node *);
    extern void unregister_node(struct node *node);
    +extern int arch_register_node(int num);
    +extern void arch_unregister_node(int num);

    #define to_node(sys_device) container_of(sys_device, struct node, sysdev)

    --
    Yasunori Goto


    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2006-03-17 09:27    [W:0.022 / U:59.756 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site