summaryrefslogtreecommitdiff
path: root/arch/x86/mm/kmemcheck/pte.c
diff options
context:
space:
mode:
authorSrikant Patnaik2015-01-13 15:08:24 +0530
committerSrikant Patnaik2015-01-13 15:08:24 +0530
commit97327692361306d1e6259021bc425e32832fdb50 (patch)
treefe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/x86/mm/kmemcheck/pte.c
parent2d05a8f663478a44e088d122e0d62109bbc801d0 (diff)
parenta3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff)
downloadFOSSEE-netbook-kernel-source-97327692361306d1e6259021bc425e32832fdb50.tar.gz
FOSSEE-netbook-kernel-source-97327692361306d1e6259021bc425e32832fdb50.tar.bz2
FOSSEE-netbook-kernel-source-97327692361306d1e6259021bc425e32832fdb50.zip
dirty fix to merging
Diffstat (limited to 'arch/x86/mm/kmemcheck/pte.c')
-rw-r--r--arch/x86/mm/kmemcheck/pte.c22
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 00000000..4ead26ee
--- /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;
+}
+