diff options
author | Dave Hansen <haveblue@us.ibm.com> | 2005-06-23 03:07:42 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 12:45:01 -0400 |
commit | 3a9da7655d2d5b7f790a370328cf093440c80496 (patch) | |
tree | 29fd39ee7dce0cfb4abc104a8492c22ff7f06111 /mm | |
parent | 5b505b90b2d54e526cc8d123bdef3b98c9f0bbc6 (diff) |
[PATCH] create mm/Kconfig for arch-independent memory options
With sparsemem being introduced, we need a central place for new
memory-related .config options: mm/Kconfig. This allows us to remove many
of the duplicated arch-specific options.
The new option, CONFIG_FLATMEM, is there to enable us to detangle NUMA and
DISCONTIGMEM. This is a requirement for sparsemem because sparsemem uses
the NUMA code without the presence of DISCONTIGMEM. The sparsemem patches
use CONFIG_FLATMEM in generic code, so this patch is a requirement before
applying them.
Almost all places that used to do '#ifndef CONFIG_DISCONTIGMEM' should use
'#ifdef CONFIG_FLATMEM' instead.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
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>
Diffstat (limited to 'mm')
-rw-r--r-- | mm/Kconfig | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig new file mode 100644 index 000000000000..69caa9d8674e --- /dev/null +++ b/mm/Kconfig | |||
@@ -0,0 +1,25 @@ | |||
1 | choice | ||
2 | prompt "Memory model" | ||
3 | default FLATMEM | ||
4 | default SPARSEMEM if ARCH_SPARSEMEM_DEFAULT | ||
5 | default DISCONTIGMEM if ARCH_DISCONTIGMEM_DEFAULT | ||
6 | |||
7 | config FLATMEM | ||
8 | bool "Flat Memory" | ||
9 | depends on !ARCH_DISCONTIGMEM_ENABLE || ARCH_FLATMEM_ENABLE | ||
10 | help | ||
11 | This option allows you to change some of the ways that | ||
12 | Linux manages its memory internally. Most users will | ||
13 | only have one option here: FLATMEM. This is normal | ||
14 | and a correct option. | ||
15 | |||
16 | If unsure, choose this option over any other. | ||
17 | |||
18 | config DISCONTIGMEM | ||
19 | bool "Discontigious Memory" | ||
20 | depends on ARCH_DISCONTIGMEM_ENABLE | ||
21 | help | ||
22 | If unsure, choose "Flat Memory" over this option. | ||
23 | |||
24 | endchoice | ||
25 | |||