This gives DISCONTIGMEM a bit more help text to explain
what it does, not just when to choose it.
Signed-off-by: Dave Hansen <[email protected]>
---
memhotplug-dave/mm/Kconfig | 10 ++++++++++
1 files changed, 10 insertions(+)
diff -puN mm/Kconfig~A2-mm-Kconfig-DISCONTIG-help-text mm/Kconfig
--- memhotplug/mm/Kconfig~A2-mm-Kconfig-DISCONTIG-help-text 2005-04-11 15:49:10.000000000 -0700
+++ memhotplug-dave/mm/Kconfig 2005-04-11 15:49:10.000000000 -0700
@@ -23,6 +23,16 @@ config DISCONTIGMEM_MANUAL
bool "Discontigious Memory"
depends on ARCH_DISCONTIGMEM_ENABLE
help
+ This option provides enhanced support for discontiguous
+ memory systems, over FLATMEM. These systems have holes
+ in their physical address spaces, and this option provides
+ more efficient handling of these holes. However, the vast
+ majority of hardware has quite flat address spaces, and
+ can have degraded performance from extra overhead that
+ this option imposes.
+
+ Many NUMA configurations will have this as the only option.
+
If unsure, choose "Flat Memory" over this option.
endchoice
_
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