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| author | Vegard Nossum <vegard.nossum@gmail.com> | 2008-11-25 16:55:53 +0100 |
|---|---|---|
| committer | Vegard Nossum <vegard.nossum@gmail.com> | 2009-06-15 15:48:33 +0200 |
| commit | b1eeab67682a5e397aecf172046b3a8bd4808ae4 (patch) | |
| tree | c357b6ac1945dc8beecc2f8c4d84660ad8d35aae /include/linux/gfp.h | |
| parent | 9b5cab31897e9e89e36c0c2a89b16b93ff1a971a (diff) | |
| download | lwn-b1eeab67682a5e397aecf172046b3a8bd4808ae4.tar.gz lwn-b1eeab67682a5e397aecf172046b3a8bd4808ae4.zip | |
kmemcheck: add hooks for the page allocator
This adds support for tracking the initializedness of memory that
was allocated with the page allocator. Highmem requests are not
tracked.
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
[build fix for !CONFIG_KMEMCHECK]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
[rebased for mainline inclusion]
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Diffstat (limited to 'include/linux/gfp.h')
| -rw-r--r-- | include/linux/gfp.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h index daeaa8fe1bbd..3885e7f75562 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -51,7 +51,12 @@ struct vm_area_struct; #define __GFP_THISNODE ((__force gfp_t)0x40000u)/* No fallback, no policies */ #define __GFP_RECLAIMABLE ((__force gfp_t)0x80000u) /* Page is reclaimable */ #define __GFP_MOVABLE ((__force gfp_t)0x100000u) /* Page is movable */ + +#ifdef CONFIG_KMEMCHECK #define __GFP_NOTRACK ((__force gfp_t)0x200000u) /* Don't track with kmemcheck */ +#else +#define __GFP_NOTRACK ((__force gfp_t)0) +#endif /* * This may seem redundant, but it's a way of annotating false positives vs. |