Introduce BVEC_ITER_ALL_INIT for iterating one bio
from start to end.
Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx>
---
include/linux/bvec.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index f8a8b293cd32..5c51c58fe202 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h
@@ -183,4 +183,13 @@ static inline void bvec_iter_advance_mp(const struct bio_vec *bv,
((bvl = bvec_iter_bvec((bio_vec), (iter))), 1); \
bvec_iter_advance((bio_vec), &(iter), (bvl).bv_len))
+/* for iterating one bio from start to end */
+#define BVEC_ITER_ALL_INIT (struct bvec_iter) \
+{ \
+ .bi_sector = 0, \
+ .bi_size = UINT_MAX, \
+ .bi_idx = 0, \
+ .bi_bvec_done = 0, \
+}
+
#endif /* __LINUX_BVEC_ITER_H */
--
2.7.4
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