Commit 785dcd44b60ec8ede76fed0af54333ab5f3e848c

Authored by Dave Hansen
Committed by Linus Torvalds
1 parent e1785e85b9

[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 <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Showing 1 changed file with 10 additions and 0 deletions Side-by-side Diff

... ... @@ -23,6 +23,16 @@
23 23 bool "Discontigious Memory"
24 24 depends on ARCH_DISCONTIGMEM_ENABLE
25 25 help
  26 + This option provides enhanced support for discontiguous
  27 + memory systems, over FLATMEM. These systems have holes
  28 + in their physical address spaces, and this option provides
  29 + more efficient handling of these holes. However, the vast
  30 + majority of hardware has quite flat address spaces, and
  31 + can have degraded performance from extra overhead that
  32 + this option imposes.
  33 +
  34 + Many NUMA configurations will have this as the only option.
  35 +
26 36 If unsure, choose "Flat Memory" over this option.
27 37  
28 38 endchoice