aboutsummaryrefslogtreecommitdiff
path: root/include/asm-um
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-um')
-rw-r--r--include/asm-um/pgtable.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h
index 188f7262177..e57ff136ee5 100644
--- a/include/asm-um/pgtable.h
+++ b/include/asm-um/pgtable.h
@@ -408,6 +408,15 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
#include <asm-generic/pgtable-nopud.h>
+#ifdef CONFIG_HIGHMEM
+/* Clear a kernel PTE and flush it from the TLB */
+#define kpte_clear_flush(ptep, vaddr) \
+do { \
+ pte_clear(&init_mm, vaddr, ptep); \
+ __flush_tlb_one(vaddr); \
+} while (0)
+#endif
+
#endif
#endif