[SCSI] tgt: convert to use the data buffer accessors

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/ibmvscsi/ibmvstgt.c b/drivers/scsi/ibmvscsi/ibmvstgt.c
index 82bcab6..d63f11e 100644 (file)
--- a/drivers/scsi/ibmvscsi/ibmvstgt.c
+++ b/drivers/scsi/ibmvscsi/ibmvstgt.c
@@ -292,7 +292,7 @@ static int ibmvstgt_cmd_done(struct scsi_cmnd *sc,
        dprintk("%p %p %x %u\n", iue, target, vio_iu(iue)->srp.cmd.cdb[0],
                cmd->usg_sg);
 
-       if (sc->use_sg)
+       if (scsi_sg_count(sc))
                err = srp_transfer_data(sc, &vio_iu(iue)->srp.cmd, ibmvstgt_rdma, 1, 1);
 
        spin_lock_irqsave(&target->lock, flags);

diff --git a/drivers/scsi/libsrp.c b/drivers/scsi/libsrp.c
index 2ad0a27..5cff020 100644 (file)
--- a/drivers/scsi/libsrp.c
+++ b/drivers/scsi/libsrp.c
@@ -192,18 +192,18 @@ static int srp_direct_data(struct scsi_cmnd *sc, struct srp_direct_buf *md,
 
        if (dma_map) {
                iue = (struct iu_entry *) sc->SCp.ptr;
-               sg = sc->request_buffer;
+               sg = scsi_sglist(sc);
 
-               dprintk("%p %u %u %d\n", iue, sc->request_bufflen,
-                       md->len, sc->use_sg);
+               dprintk("%p %u %u %d\n", iue, scsi_bufflen(sc),
+                       md->len, scsi_sg_count(sc));
 
-               nsg = dma_map_sg(iue->target->dev, sg, sc->use_sg,
+               nsg = dma_map_sg(iue->target->dev, sg, scsi_sg_count(sc),
                                 DMA_BIDIRECTIONAL);
                if (!nsg) {
-                       printk("fail to map %p %d\n", iue, sc->use_sg);
+                       printk("fail to map %p %d\n", iue, scsi_sg_count(sc));
                        return 0;
                }
-               len = min(sc->request_bufflen, md->len);
+               len = min(scsi_bufflen(sc), md->len);
        } else
                len = md->len;
 
@@ -229,10 +229,10 @@ static int srp_indirect_data(struct scsi_cmnd *sc, struct srp_cmd *cmd,
 
        if (dma_map || ext_desc) {
                iue = (struct iu_entry *) sc->SCp.ptr;
-               sg = sc->request_buffer;
+               sg = scsi_sglist(sc);
 
                dprintk("%p %u %u %d %d\n",
-                       iue, sc->request_bufflen, id->len,
+                       iue, scsi_bufflen(sc), id->len,
                        cmd->data_in_desc_cnt, cmd->data_out_desc_cnt);
        }
 
@@ -268,13 +268,14 @@ static int srp_indirect_data(struct scsi_cmnd *sc, struct srp_cmd *cmd,
 
 rdma:
        if (dma_map) {
-               nsg = dma_map_sg(iue->target->dev, sg, sc->use_sg, DMA_BIDIRECTIONAL);
+               nsg = dma_map_sg(iue->target->dev, sg, scsi_sg_count(sc),
+                                DMA_BIDIRECTIONAL);
                if (!nsg) {
-                       eprintk("fail to map %p %d\n", iue, sc->use_sg);
+                       eprintk("fail to map %p %d\n", iue, scsi_sg_count(sc));
                        err = -EIO;
                        goto free_mem;
                }
-               len = min(sc->request_bufflen, id->len);
+               len = min(scsi_bufflen(sc), id->len);
        } else
                len = id->len;
 

diff --git a/drivers/scsi/scsi_tgt_if.c b/drivers/scsi/scsi_tgt_if.c
index 9815a1a..d2557db 100644 (file)
--- a/drivers/scsi/scsi_tgt_if.c
+++ b/drivers/scsi/scsi_tgt_if.c
@@ -112,7 +112,7 @@ int scsi_tgt_uspace_send_cmd(struct scsi_cmnd *cmd, u64 itn_id,
        memset(&ev, 0, sizeof(ev));
        ev.p.cmd_req.host_no = shost->host_no;
        ev.p.cmd_req.itn_id = itn_id;
-       ev.p.cmd_req.data_len = cmd->request_bufflen;
+       ev.p.cmd_req.data_len = scsi_bufflen(cmd);
        memcpy(ev.p.cmd_req.scb, cmd->cmnd, sizeof(ev.p.cmd_req.scb));
        memcpy(ev.p.cmd_req.lun, lun, sizeof(ev.p.cmd_req.lun));
        ev.p.cmd_req.attribute = cmd->tag;

diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c
index a91761c..deea3cd 100644 (file)
--- a/drivers/scsi/scsi_tgt_lib.c
+++ b/drivers/scsi/scsi_tgt_lib.c
@@ -331,7 +331,7 @@ static void scsi_tgt_cmd_done(struct scsi_cmnd *cmd)
 
        scsi_tgt_uspace_send_status(cmd, tcmd->itn_id, tcmd->tag);
 
-       if (cmd->request_buffer)
+       if (scsi_sglist(cmd))
                scsi_free_sgtable(cmd);
 
        queue_work(scsi_tgtd, &tcmd->work);
@@ -365,14 +365,15 @@ static int scsi_tgt_init_cmd(struct scsi_cmnd *cmd, gfp_t gfp_mask)
 
        cmd->request_bufflen = rq->data_len;
 
-       dprintk("cmd %p cnt %d %lu\n", cmd, cmd->use_sg, rq_data_dir(rq));
-       count = blk_rq_map_sg(rq->q, rq, cmd->request_buffer);
-       if (likely(count <= cmd->use_sg)) {
+       dprintk("cmd %p cnt %d %lu\n", cmd, scsi_sg_count(cmd),
+               rq_data_dir(rq));
+       count = blk_rq_map_sg(rq->q, rq, scsi_sglist(cmd));
+       if (likely(count <= scsi_sg_count(cmd))) {
                cmd->use_sg = count;
                return 0;
        }
 
-       eprintk("cmd %p cnt %d\n", cmd, cmd->use_sg);
+       eprintk("cmd %p cnt %d\n", cmd, scsi_sg_count(cmd));
        scsi_free_sgtable(cmd);
        return -EINVAL;
 }