Re: [PATCH 3/3] ppc64-specific memory notifier support
From: Michael Ellerman <hidden>
Date: 2008-02-29 00:11:15
On Thu, 2008-02-28 at 08:46 -0800, Badari Pulavarty wrote:
quoted hunk ↗ jump to hunk
Hotplug memory notifier for ppc64. This gets invoked by writing the device-node that needs to be removed to /proc/ppc64/ofdt. We need to adjust the sections and remove sysfs entries by calling __remove_pages(). Then call arch specific code to get rid of htab mappings for the section of memory. Signed-off-by: Badari Pulavarty <redacted> --- arch/powerpc/platforms/pseries/Makefile | 1 arch/powerpc/platforms/pseries/hotplug-memory.c | 98 ++++++++++++++++++++++++ 2 files changed, 99 insertions(+) Index: linux-2.6.25-rc2/arch/powerpc/platforms/pseries/hotplug-memory.c ===================================================================--- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-2.6.25-rc2/arch/powerpc/platforms/pseries/hotplug-memory.c 2008-02-28 08:20:14.000000000 -0800
+
+static struct notifier_block pseries_smp_nb = {
+ .notifier_call = pseries_memory_notifier,
+};
+
+static int __init pseries_memory_hotplug_init(void)
+{
+ if (firmware_has_feature(FW_FEATURE_LPAR))
+ pSeries_reconfig_notifier_register(&pseries_smp_nb);
+
+ return 0;
+}
+arch_initcall(pseries_memory_hotplug_init);This is going to fire on non-pseries LPAR platforms, like iSeries and PS3. Which is not what you want I think. cheers -- Michael Ellerman OzLabs, IBM Australia Development Lab wwweb: http://michael.ellerman.id.au phone: +61 2 6212 1183 (tie line 70 21183) We do not inherit the earth from our ancestors, we borrow it from our children. - S.M.A.R.T Person
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