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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 13:09:51 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 13:09:51 -0700 |
commit | b3fec0fe35a4ff048484f1408385a27695d4273b (patch) | |
tree | 088c23f098421ea681d9976a83aad73d15be1027 /arch/x86/mm/kmemcheck/pte.c | |
parent | e1f5b94fd0c93c3e27ede88b7ab652d086dc960f (diff) | |
parent | 722f2a6c87f34ee0fd0130a8cf45f81e0705594a (diff) |
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck: (39 commits)
signal: fix __send_signal() false positive kmemcheck warning
fs: fix do_mount_root() false positive kmemcheck warning
fs: introduce __getname_gfp()
trace: annotate bitfields in struct ring_buffer_event
net: annotate struct sock bitfield
c2port: annotate bitfield for kmemcheck
net: annotate inet_timewait_sock bitfields
ieee1394/csr1212: fix false positive kmemcheck report
ieee1394: annotate bitfield
net: annotate bitfields in struct inet_sock
net: use kmemcheck bitfields API for skbuff
kmemcheck: introduce bitfield API
kmemcheck: add opcode self-testing at boot
x86: unify pte_hidden
x86: make _PAGE_HIDDEN conditional
kmemcheck: make kconfig accessible for other architectures
kmemcheck: enable in the x86 Kconfig
kmemcheck: add hooks for the page allocator
kmemcheck: add hooks for page- and sg-dma-mappings
kmemcheck: don't track page tables
...
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; +} + |