[PATCH 5/9] tgt: convert to use scsi_data_buffer

[FUJITA Tomonori]

Signed-off-by: FUJITA Tomonori <[EMAIL PROTECTED]>
---
 drivers/scsi/scsi_tgt_if.c  |    2 +-
 drivers/scsi/scsi_tgt_lib.c |   27 ++++++++++++++-------------
 2 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/scsi_tgt_if.c b/drivers/scsi/scsi_tgt_if.c
index ca22ddf..bdfc9b0 100644
--- a/drivers/scsi/scsi_tgt_if.c
+++ b/drivers/scsi/scsi_tgt_if.c
@@ -110,7 +110,7 @@ int scsi_tgt_uspace_send_cmd(struct scsi_cmnd *cmd, struct 
scsi_lun *lun, u64 ta
 
        memset(&ev, 0, sizeof(ev));
        ev.p.cmd_req.host_no = shost->host_no;
-       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 2ee7b5a..30c8ec1 100644
--- a/drivers/scsi/scsi_tgt_lib.c
+++ b/drivers/scsi/scsi_tgt_lib.c
@@ -328,8 +328,8 @@ static void scsi_tgt_cmd_done(struct scsi_cmnd *cmd)
 
        scsi_tgt_uspace_send_status(cmd, tcmd->tag);
 
-       if (cmd->request_buffer)
-               scsi_free_sgtable(cmd);
+       if (cmd->sdb.sglist)
+               scsi_free_sgtable(&cmd->sdb);
 
        queue_work(scsi_tgtd, &tcmd->work);
 }
@@ -353,24 +353,25 @@ static int scsi_tgt_transfer_response(struct scsi_cmnd 
*cmd)
 static int scsi_tgt_init_cmd(struct scsi_cmnd *cmd, gfp_t gfp_mask)
 {
        struct request *rq = cmd->request;
+       struct scsi_data_buffer *sdb = &cmd->sdb;
        int count;
+       int ret;
 
-       cmd->use_sg = rq->nr_phys_segments;
-       cmd->request_buffer = scsi_alloc_sgtable(cmd, gfp_mask);
-       if (!cmd->request_buffer)
-               return -ENOMEM;
+       ret = scsi_alloc_sgtable(sdb, gfp_mask, rq->nr_phys_segments);
+       if (ret)
+               return ret;
 
-       cmd->request_bufflen = rq->data_len;
+       sdb->length = 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)) {
-               cmd->use_sg = count;
+       dprintk("cmd %p cnt %d %lu\n", cmd, scsi_sg_count(cmd), 
rq_data_dir(rq));
+       count = blk_rq_map_sg(rq->q, rq, sdb->sglist);
+       if (likely(count <= sdb->sg_count)) {
+               sdb->sg_count = count;
                return 0;
        }
 
-       eprintk("cmd %p cnt %d\n", cmd, cmd->use_sg);
-       scsi_free_sgtable(cmd);
+       eprintk("cmd %p cnt %d\n", cmd, scsi_sg_count(cmd));
+       scsi_free_sgtable(&cmd->sdb);
        return -EINVAL;
 }
 
-- 
1.5.2.4

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