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-rw-r--r--include/linux/bio.h22
-rw-r--r--include/linux/bvec.h3
2 files changed, 4 insertions, 21 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 51371740d2a8..14b4fa266357 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -170,27 +170,11 @@ static inline void bio_advance_iter(struct bio *bio, struct bvec_iter *iter,
{
iter->bi_sector += bytes >> 9;
- if (bio_no_advance_iter(bio)) {
+ if (bio_no_advance_iter(bio))
iter->bi_size -= bytes;
- iter->bi_done += bytes;
- } else {
+ else
bvec_iter_advance(bio->bi_io_vec, iter, bytes);
/* TODO: It is reasonable to complete bio with error here. */
- }
-}
-
-static inline bool bio_rewind_iter(struct bio *bio, struct bvec_iter *iter,
- unsigned int bytes)
-{
- iter->bi_sector -= bytes >> 9;
-
- if (bio_no_advance_iter(bio)) {
- iter->bi_size += bytes;
- iter->bi_done -= bytes;
- return true;
- }
-
- return bvec_iter_rewind(bio->bi_io_vec, iter, bytes);
}
#define __bio_for_each_segment(bvl, bio, iter, start) \
@@ -353,6 +337,8 @@ struct bio_integrity_payload {
unsigned short bip_max_vcnt; /* integrity bio_vec slots */
unsigned short bip_flags; /* control flags */
+ struct bvec_iter bio_iter; /* for rewinding parent bio */
+
struct work_struct bip_work; /* I/O completion */
struct bio_vec *bip_vec;
diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index fe7a22dd133b..02c73c6aa805 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h
@@ -40,8 +40,6 @@ struct bvec_iter {
unsigned int bi_idx; /* current index into bvl_vec */
- unsigned int bi_done; /* number of bytes completed */
-
unsigned int bi_bvec_done; /* number of bytes completed in
current bvec */
};
@@ -85,7 +83,6 @@ static inline bool bvec_iter_advance(const struct bio_vec *bv,
bytes -= len;
iter->bi_size -= len;
iter->bi_bvec_done += len;
- iter->bi_done += len;
if (iter->bi_bvec_done == __bvec_iter_bvec(bv, *iter)->bv_len) {
iter->bi_bvec_done = 0;