| Message ID | 1482854706-14128-1-git-send-email-tom.leiming@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/include/linux/bvec.h b/include/linux/bvec.h index baf379d56106..e9a623067c52 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -206,4 +206,14 @@ static inline void bvec_iter_advance_mp(const struct bio_vec *bv, #define bvec_for_each_sp_bvec(sp_bvl, mp_bvec, iter) \ __bvec_for_each_sp_bvec(sp_bvl, mp_bvec, iter, BVEC_ITER_ALL_INIT) +/* get the last singlepage bvec from the multipage bvec */ +static inline void bvec_get_last_sp(struct bio_vec *mp_bv, + struct bio_vec *sp_bv) +{ + struct bvec_iter iter; + + bvec_for_each_sp_bvec(*sp_bv, mp_bv, iter) + ; +} + #endif /* __LINUX_BVEC_ITER_H */
BTRFS need to get the last singlepage bvec, so introduce this helper to make it happy. Signed-off-by: Ming Lei <tom.leiming@gmail.com> --- include/linux/bvec.h | 10 ++++++++++ 1 file changed, 10 insertions(+)