From 785dcd44b60ec8ede76fed0af54333ab5f3e848c Mon Sep 17 00:00:00 2001 From: Dave Hansen Date: Thu, 23 Jun 2005 00:07:50 -0700 Subject: [PATCH] [PATCH] mm/Kconfig: give DISCONTIG more help text This gives DISCONTIGMEM a bit more help text to explain what it does, not just when to choose it. Signed-off-by: Dave Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/Kconfig | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/mm/Kconfig b/mm/Kconfig index 7d3a0054cba..8283685f3bb 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -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