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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 /arch/x86/mm/kmemcheck | |
| parent | kmemcheck: add hooks for page- and sg-dma-mappings (diff) | |
| download | linux-dev-b1eeab67682a5e397aecf172046b3a8bd4808ae4.tar.xz linux-dev-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 'arch/x86/mm/kmemcheck')
| -rw-r--r-- | arch/x86/mm/kmemcheck/shadow.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/mm/kmemcheck/shadow.c b/arch/x86/mm/kmemcheck/shadow.c index e7346d3873b3..e773b6bd0079 100644 --- a/arch/x86/mm/kmemcheck/shadow.c +++ b/arch/x86/mm/kmemcheck/shadow.c @@ -116,6 +116,14 @@ void kmemcheck_mark_uninitialized_pages(struct page *p, unsigned int n) kmemcheck_mark_uninitialized(page_address(&p[i]), PAGE_SIZE); } +void kmemcheck_mark_initialized_pages(struct page *p, unsigned int n) +{ + unsigned int i; + + for (i = 0; i < n; ++i) + kmemcheck_mark_initialized(page_address(&p[i]), PAGE_SIZE); +} + enum kmemcheck_shadow kmemcheck_shadow_test(void *shadow, unsigned int size) { uint8_t *x; |