The patch titled
hot-add-mem x86_64: acpi motherboard fix
has been added to the -mm tree. Its filename is
hot-add-mem-x86_64-acpi-motherboard-fix.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: hot-add-mem x86_64: acpi motherboard fix
From: Keith Mannthey <kmannth@xxxxxxxxxx>
This patch set allow SPARSEMEM and RESERVE based hot-add to work. I have
test both options and they work as expected. I am adding memory to the
2nd node of a numa system (x86_64).
Major changes from last set is the config change and RESERVE enablment.
This patch:
Make ACPI motherboard driver not attach to devices/handles it dosen't expect.
Fix a bug where the motherboard driver attached to hot-add memory event and
caused the add memory call to fail.
Signed-off-by: Keith Mannthey<kmannth@xxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
diff -puN drivers/acpi/motherboard.c~hot-add-mem-x86_64-acpi-motherboard-fix drivers/acpi/motherboard.c
--- a/drivers/acpi/motherboard.c~hot-add-mem-x86_64-acpi-motherboard-fix
+++ a/drivers/acpi/motherboard.c
@@ -87,6 +87,7 @@ static acpi_status acpi_reserve_io_range
}
} else {
/* Memory mapped IO? */
+ return -EINVAL;
}
if (requested_res)
@@ -96,11 +97,16 @@ static acpi_status acpi_reserve_io_range
static int acpi_motherboard_add(struct acpi_device *device)
{
+ acpi_status status;
if (!device)
return -EINVAL;
- acpi_walk_resources(device->handle, METHOD_NAME__CRS,
+
+ status = acpi_walk_resources(device->handle, METHOD_NAME__CRS,
acpi_reserve_io_ranges, NULL);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+
return 0;
}
_
Patches currently in -mm which might be from kmannth@xxxxxxxxxx are
memory-hotadd-fixes-enhance-collistion-check.patch
hot-add-mem-x86_64-acpi-motherboard-fix.patch
hot-add-mem-x86_64-fixup-externs.patch
hot-add-mem-x86_64-kconfig-changes.patch
hot-add-mem-x86_64-enable-sparsemem-in-sratc.patch
hot-add-mem-x86_64-memory_add_physaddr_to_nid-enable.patch
hot-add-mem-x86_64-memory_add_physaddr_to_nid-node-fixup.patch
hot-add-mem-x86_64-x86_64-kernel-mapping-fix.patch
hot-add-mem-x86_64-use-config_memory_hotplug_sparse.patch
hot-add-mem-x86_64-use-config_memory_hotplug_reserve.patch
hot-add-mem-x86_64-valid-add-range-check.patch
convert-i386-numa-kva-space-to-bootmem.patch
convert-i386-numa-kva-space-to-bootmem-tidy.patch
convert-i386-summit-subarch-to-use-srat-info-for-apicid_to_node-calls.patch
-
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