mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 03:10:12 +00:00
![Joonsoo Kim](/assets/img/avatar_default.png)
These are obsolete since commit e30825f186
("mm/debug-pagealloc:
prepare boottime configurable") was merged. So remove them.
[pebolle@tiscali.nl: find obsolete Kconfig options]
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Jungsoo Son <jungsoo.son@lge.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
30 lines
1.2 KiB
Text
30 lines
1.2 KiB
Text
config PAGE_EXTENSION
|
|
bool "Extend memmap on extra space for more information on page"
|
|
---help---
|
|
Extend memmap on extra space for more information on page. This
|
|
could be used for debugging features that need to insert extra
|
|
field for every page. This extension enables us to save memory
|
|
by not allocating this extra memory according to boottime
|
|
configuration.
|
|
|
|
config DEBUG_PAGEALLOC
|
|
bool "Debug page memory allocations"
|
|
depends on DEBUG_KERNEL
|
|
depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC
|
|
depends on !KMEMCHECK
|
|
select PAGE_EXTENSION
|
|
select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC
|
|
---help---
|
|
Unmap pages from the kernel linear mapping after free_pages().
|
|
This results in a large slowdown, but helps to find certain types
|
|
of memory corruption.
|
|
|
|
For architectures which don't enable ARCH_SUPPORTS_DEBUG_PAGEALLOC,
|
|
fill the pages with poison patterns after free_pages() and verify
|
|
the patterns before alloc_pages(). Additionally,
|
|
this option cannot be enabled in combination with hibernation as
|
|
that would result in incorrect warnings of memory corruption after
|
|
a resume because free pages are not saved to the suspend image.
|
|
|
|
config PAGE_POISONING
|
|
bool
|