Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
include/linux/blk_types.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 1940876a7fa7..16c4e657807f 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -314,6 +314,19 @@ struct blk_rq_stat {
u64 batch;
};
+/*
+ * Data life time definitions for writes. These are relative within a
+ * given device, no absolute meaning is attached to them.
+ */
+enum {
+ WRITE_LIFE_UNKNOWN = 0,
+ WRITE_LIFE_SHORT,
+ WRITE_LIFE_MEDIUM,
+ WRITE_LIFE_LONG,
+ WRITE_LIFE_EXTREME,
+ WRITE_LIFE_NR,
+};
+
static inline void bio_set_streamid(struct bio *bio, unsigned int stream)
{
bio->bi_stream = stream;
--
2.7.4
