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-rw-r--r--include/linux/highmem.h5
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);