1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 102f76be90da..e9138198e823 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -88,6 +88,11 @@ static inline int kmap_atomic_idx_push(void)
         return idx;
 }
 
+static inline int kmap_atomic_idx(void)
+{
+        return __get_cpu_var(__kmap_atomic_idx) - 1;
+}
+
 static inline int kmap_atomic_idx_pop(void)
 {
         int idx = --__get_cpu_var(__kmap_atomic_idx);