Re: [Bug fix PATCH 0/2] Make whatever node kernel resides inun-hotpluggable.

[Andrew Morton]

On Wed, 20 Feb 2013 19:00:54 +0800
Tang Chen <tangchen@xxxxxxxxxxxxxx> wrote:

> As mentioned by HPA before, when we are using movablemem_map=acpi, if all the
> memory in SRAT is hotpluggable, then the kernel will have no memory to use, and
> will fail to boot.
> 
> Before parsing SRAT, memblock has already reserved some memory in memblock.reserve,
> which is used by the kernel, such as storing the kernel image. We are not able to
> prevent the kernel from using these memory. So, these 2 patches make the node which
> the kernel resides in un-hotpluggable.

I'm planning to roll all these into a single commit:

acpi-memory-hotplug-support-getting-hotplug-info-from-srat.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix-fix.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix-fix-fix.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix-fix-fix-fix.patch
acpi-memory-hotplug-support-getting-hotplug-info-from-srat-fix-fix-fix-fix-fix.patch

for reasons of tree-cleanliness and to avoid bisection holes.  They're
at http://ozlabs.org/~akpm/mmots/broken-out/.

Can you please check the changelog for
acpi-memory-hotplug-support-getting-hotplug-info-from-srat.patch to see
if it needs any updates due to all the fixup patches?  If so, please
send me the new changelog, thanks.

Also, please review the changelogging for these:

page_alloc-add-movable_memmap-kernel-parameter.patch
page_alloc-add-movable_memmap-kernel-parameter-fix.patch
page_alloc-add-movable_memmap-kernel-parameter-fix-fix.patch
page_alloc-add-movable_memmap-kernel-parameter-fix-fix-checkpatch-fixes.patch
page_alloc-add-movable_memmap-kernel-parameter-fix-fix-fix.patch
page_alloc-add-movable_memmap-kernel-parameter-rename-movablecore_map-to-movablemem_map.patch

memory-hotplug-remove-sys-firmware-memmap-x-sysfs.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix-fix.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix-fix-fix.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix-fix-fix-fix.patch
memory-hotplug-remove-sys-firmware-memmap-x-sysfs-fix-fix-fix-fix-fix.patch

memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix-fix-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix-fix-fix-fix.patch

memory-hotplug-common-apis-to-support-page-tables-hot-remove.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix-fix-fix-fix.patch
memory-hotplug-common-apis-to-support-page-tables-hot-remove-fix-fix-fix-fix-fix-fix-fix.patch

acpi-memory-hotplug-parse-srat-before-memblock-is-ready.patch
acpi-memory-hotplug-parse-srat-before-memblock-is-ready-fix.patch
acpi-memory-hotplug-parse-srat-before-memblock-is-ready-fix-fix.patch


and while we're there, let's pause to admire how prescient I was in
refusing to merge all this into 3.8-rc1 :)
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