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authorYinghai Lu <yinghai@kernel.org>2009-05-15 16:59:37 -0400
committerIngo Molnar <mingo@elte.hu>2009-05-18 03:13:31 -0400
commit888a589f6be07d624e21e2174d98375e9f95911b (patch)
tree5c2c210796a114479807f41fc15fe69805d66074 /Documentation
parentb286e21868ea1af724a7a4802da2c8e144fa70de (diff)
mm, x86: remove MEMORY_HOTPLUG_RESERVE related code
after: | commit b263295dbffd33b0fbff670720fa178c30e3392a | 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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/x86/x86_64/boot-options.txt5
1 files changed, 0 insertions, 5 deletions
diff --git a/Documentation/x86/x86_64/boot-options.txt b/Documentation/x86/x86_64/boot-options.txt
index 34c13040a718..2db5893d6c97 100644
--- a/Documentation/x86/x86_64/boot-options.txt
+++ b/Documentation/x86/x86_64/boot-options.txt
@@ -150,11 +150,6 @@ NUMA
150 Otherwise, the remaining system RAM is allocated to an 150 Otherwise, the remaining system RAM is allocated to an
151 additional node. 151 additional node.
152 152
153 numa=hotadd=percent
154 Only allow hotadd memory to preallocate page structures upto
155 percent of already available memory.
156 numa=hotadd=0 will disable hotadd memory.
157
158ACPI 153ACPI
159 154
160 acpi=off Don't enable ACPI 155 acpi=off Don't enable ACPI