Commit 70ecb3cb033f37fd5024448f809ea028fb85c28b
Committed by
Linus Torvalds
Linus Torvalds
1 parent
75069f2b5b
Exists in
ti-lsk-linux-4.1.y
and in
10 other branches
mm/debug_pagealloc: remove obsolete Kconfig options
These are obsolete since commit e30825f1869a ("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>
Showing 1 changed file with 0 additions and 9 deletions Inline Diff
mm/Kconfig.debug
| 1 | config PAGE_EXTENSION | 1 | config PAGE_EXTENSION |
| 2 | bool "Extend memmap on extra space for more information on page" | 2 | bool "Extend memmap on extra space for more information on page" |
| 3 | ---help--- | 3 | ---help--- |
| 4 | Extend memmap on extra space for more information on page. This | 4 | Extend memmap on extra space for more information on page. This |
| 5 | could be used for debugging features that need to insert extra | 5 | could be used for debugging features that need to insert extra |
| 6 | field for every page. This extension enables us to save memory | 6 | field for every page. This extension enables us to save memory |
| 7 | by not allocating this extra memory according to boottime | 7 | by not allocating this extra memory according to boottime |
| 8 | configuration. | 8 | configuration. |
| 9 | 9 | ||
| 10 | config DEBUG_PAGEALLOC | 10 | config DEBUG_PAGEALLOC |
| 11 | bool "Debug page memory allocations" | 11 | bool "Debug page memory allocations" |
| 12 | depends on DEBUG_KERNEL | 12 | depends on DEBUG_KERNEL |
| 13 | depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC | 13 | depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC |
| 14 | depends on !KMEMCHECK | 14 | depends on !KMEMCHECK |
| 15 | select PAGE_EXTENSION | 15 | select PAGE_EXTENSION |
| 16 | select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC | 16 | select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC |
| 17 | select PAGE_GUARD if ARCH_SUPPORTS_DEBUG_PAGEALLOC | ||
| 18 | ---help--- | 17 | ---help--- |
| 19 | Unmap pages from the kernel linear mapping after free_pages(). | 18 | Unmap pages from the kernel linear mapping after free_pages(). |
| 20 | This results in a large slowdown, but helps to find certain types | 19 | This results in a large slowdown, but helps to find certain types |
| 21 | of memory corruption. | 20 | of memory corruption. |
| 22 | 21 | ||
| 23 | For architectures which don't enable ARCH_SUPPORTS_DEBUG_PAGEALLOC, | 22 | For architectures which don't enable ARCH_SUPPORTS_DEBUG_PAGEALLOC, |
| 24 | fill the pages with poison patterns after free_pages() and verify | 23 | fill the pages with poison patterns after free_pages() and verify |
| 25 | the patterns before alloc_pages(). Additionally, | 24 | the patterns before alloc_pages(). Additionally, |
| 26 | this option cannot be enabled in combination with hibernation as | 25 | this option cannot be enabled in combination with hibernation as |
| 27 | that would result in incorrect warnings of memory corruption after | 26 | that would result in incorrect warnings of memory corruption after |
| 28 | a resume because free pages are not saved to the suspend image. | 27 | a resume because free pages are not saved to the suspend image. |
| 29 | 28 | ||
| 30 | config WANT_PAGE_DEBUG_FLAGS | ||
| 31 | bool | ||
| 32 | |||
| 33 | config PAGE_POISONING | 29 | config PAGE_POISONING |
| 34 | bool | 30 | bool |
| 35 | select WANT_PAGE_DEBUG_FLAGS | ||
| 36 | |||
| 37 | config PAGE_GUARD | ||
| 38 | bool | ||
| 39 | select WANT_PAGE_DEBUG_FLAGS | ||
| 40 | 31 |