[PATCH v3 15/49] bvec_iter: introduce BVEC_ITER_ALL_INIT
From: Ming Lei <hidden>
Date: 2017-08-08 08:45:14
Also in:
linux-fsdevel, linux-mm, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Introduce BVEC_ITER_ALL_INIT for iterating one bio from start to end. Signed-off-by: Ming Lei <redacted> --- include/linux/bvec.h | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index ec8a4d7af6bd..fe7a22dd133b 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h@@ -125,4 +125,13 @@ static inline bool bvec_iter_rewind(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 */
--
2.9.4