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| author | Ingo Molnar <mingo@elte.hu> | 2009-08-23 11:18:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-23 11:18:47 +0200 |
| commit | 8a517c514d5893602cf85c1b4c47afbbc04d2198 (patch) | |
| tree | e7c40f68ef97bb2bdb4c366c0b45437bc049feb1 /arch/x86/mm/kmemcheck/pte.c | |
| parent | x86, cpu: cpu/proc.c display cache alignment and address sizes for 32 bit (diff) | |
| parent | Linux 2.6.31-rc7 (diff) | |
| download | linux-8a517c514d5893602cf85c1b4c47afbbc04d2198.tar.xz linux-8a517c514d5893602cf85c1b4c47afbbc04d2198.zip | |
Merge commit 'v2.6.31-rc7' into x86/cpu
Diffstat (limited to 'arch/x86/mm/kmemcheck/pte.c')
| -rw-r--r-- | arch/x86/mm/kmemcheck/pte.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/x86/mm/kmemcheck/pte.c b/arch/x86/mm/kmemcheck/pte.c new file mode 100644 index 000000000000..4ead26eeaf96 --- /dev/null +++ b/arch/x86/mm/kmemcheck/pte.c @@ -0,0 +1,22 @@ +#include <linux/mm.h> + +#include <asm/pgtable.h> + +#include "pte.h" + +pte_t *kmemcheck_pte_lookup(unsigned long address) +{ + pte_t *pte; + unsigned int level; + + pte = lookup_address(address, &level); + if (!pte) + return NULL; + if (level != PG_LEVEL_4K) + return NULL; + if (!pte_hidden(*pte)) + return NULL; + + return pte; +} + |