1 files changed, 4 insertions, 5 deletions

diff --git a/block/blk-merge.c b/block/blk-merge.c
index 5e7dc9973458..3b0cd4249671 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -12,7 +12,6 @@
 static unsigned int __blk_recalc_rq_segments(struct request_queue *q,
                                              struct bio *bio)
 {
-        unsigned int phys_size;
         struct bio_vec *bv, *bvprv = NULL;
         int cluster, i, high, highprv = 1;
         unsigned int seg_size, nr_phys_segs;
@@ -24,7 +23,7 @@ static unsigned int __blk_recalc_rq_segments(struct request_queue *q,
         fbio = bio;
         cluster = test_bit(QUEUE_FLAG_CLUSTER, &q->queue_flags);
         seg_size = 0;
-        phys_size = nr_phys_segs = 0;
+        nr_phys_segs = 0;
         for_each_bio(bio) {
                 bio_for_each_segment(bv, bio, i) {
                         /*
@@ -180,7 +179,7 @@ new_segment:
         }
 
         if (q->dma_drain_size && q->dma_drain_needed(rq)) {
-                if (rq->cmd_flags & REQ_RW)
+                if (rq->cmd_flags & REQ_WRITE)
                         memset(q->dma_drain_buffer, 0, q->dma_drain_size);
 
                 sg->page_link &= ~0x02;
@@ -226,7 +225,7 @@ int ll_back_merge_fn(struct request_queue *q, struct request *req,
 {
         unsigned short max_sectors;
 
-        if (unlikely(blk_pc_request(req)))
+        if (unlikely(req->cmd_type == REQ_TYPE_BLOCK_PC))
                 max_sectors = queue_max_hw_sectors(q);
         else
                 max_sectors = queue_max_sectors(q);
@@ -250,7 +249,7 @@ int ll_front_merge_fn(struct request_queue *q, struct request *req,
 {
         unsigned short max_sectors;
 
-        if (unlikely(blk_pc_request(req)))
+        if (unlikely(req->cmd_type == REQ_TYPE_BLOCK_PC))
                 max_sectors = queue_max_hw_sectors(q);
         else
                 max_sectors = queue_max_sectors(q);