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-rw-r--r--include/linux/elevator.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 9c5a04f..b3370ef 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -3,6 +3,8 @@
#include <linux/percpu.h>
+#ifdef CONFIG_BLOCK
+
typedef int (elevator_merge_fn) (request_queue_t *, struct request **,
struct bio *);
@@ -203,4 +205,5 @@ enum {
__val; \
})
+#endif /* CONFIG_BLOCK */
#endif
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