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-rw-r--r--block/blk-merge.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 51ed971709c3..7cea5050bbcf 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -167,17 +167,17 @@ static bool bvec_split_segs(const struct request_queue *q,
{
unsigned len = bv->bv_len;
unsigned total_len = 0;
- unsigned new_nsegs = 0, seg_size = 0;
+ unsigned seg_size = 0;
/*
* Multi-page bvec may be too big to hold in one segment, so the
* current bvec has to be splitted as multiple segments.
*/
- while (len && new_nsegs + *nsegs < max_segs) {
+ while (len && *nsegs < max_segs) {
seg_size = get_max_segment_size(q, bv->bv_offset + total_len);
seg_size = min(seg_size, len);
- new_nsegs++;
+ (*nsegs)++;
total_len += seg_size;
len -= seg_size;
@@ -185,11 +185,7 @@ static bool bvec_split_segs(const struct request_queue *q,
break;
}
- if (new_nsegs) {
- *nsegs += new_nsegs;
- if (sectors)
- *sectors += total_len >> 9;
- }
+ *sectors += total_len >> 9;
/* split in the middle of the bvec if len != 0 */
return !!len;
@@ -349,6 +345,7 @@ EXPORT_SYMBOL(blk_queue_split);
unsigned int blk_recalc_rq_segments(struct request *rq)
{
unsigned int nr_phys_segs = 0;
+ unsigned int nr_sectors = 0;
struct req_iterator iter;
struct bio_vec bv;
@@ -365,7 +362,8 @@ unsigned int blk_recalc_rq_segments(struct request *rq)
}
rq_for_each_bvec(bv, rq, iter)
- bvec_split_segs(rq->q, &bv, &nr_phys_segs, NULL, UINT_MAX);
+ bvec_split_segs(rq->q, &bv, &nr_phys_segs, &nr_sectors,
+ UINT_MAX);
return nr_phys_segs;
}