linux/Documentation/x86/x86_64
Yinghai Lu 888a589f6b mm, x86: remove MEMORY_HOTPLUG_RESERVE related code
after:

 | commit b263295dbf
 | Author: Christoph Lameter <clameter@sgi.com>
 | Date:   Wed Jan 30 13:30:47 2008 +0100
 |
 |    x86: 64-bit, make sparsemem vmemmap the only memory model

we don't have MEMORY_HOTPLUG_RESERVE anymore.

Historically, x86-64 had an architecture-specific method for memory hotplug
whereby it scanned the SRAT for physical memory ranges that could be
potentially used for memory hot-add later. By reserving those ranges
without physical memory, the memmap would be allocated and left dormant
until needed. This depended on the DISCONTIG memory model which has been
removed so the code implementing HOTPLUG_RESERVE is now dead.

This patch removes the dead code used by MEMORY_HOTPLUG_RESERVE.

(Changelog authored by Mel.)

v2: updated changelog, and remove hotadd= in doc

[ Impact: remove dead code ]

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Reviewed-by: Mel Gorman <mel@csn.ul.ie>
Workflow-found-OK-by: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <4A0C4910.7090508@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-18 09:13:31 +02:00
..
00-INDEX
boot-options.txt mm, x86: remove MEMORY_HOTPLUG_RESERVE related code 2009-05-18 09:13:31 +02:00
cpu-hotplug-spec
fake-numa-for-cpusets trivial: fix where cgroup documentation is not correctly referred to 2009-03-30 15:22:02 +02:00
kernel-stacks
machinecheck
mm.txt x86: fix typo in address space documentation 2009-05-05 19:10:18 -07:00
uefi.txt x86 boot: only pick up additional EFI memmap if add_efi_memmap flag 2008-07-08 13:10:41 +02:00