sg: remove __sg_start_req
__sg_start_req() was used temporarily to call blk_get_request() during converting sg to use the block layer. Now sg always calls blk_get_request() so we can move blk_get_request() to sg_start_req(). We don't need __sg_start_req anymore. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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@ -1626,14 +1626,23 @@ exit_sg(void)
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idr_destroy(&sg_index_idr);
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idr_destroy(&sg_index_idr);
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}
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}
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static int __sg_start_req(struct sg_request *srp, struct sg_io_hdr *hp,
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static int sg_start_req(Sg_request *srp, unsigned char *cmd)
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unsigned char *cmd)
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{
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{
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struct sg_fd *sfp = srp->parentfp;
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int res = 0;
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struct request_queue *q = sfp->parentdp->device->request_queue;
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struct request *rq;
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struct request *rq;
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Sg_fd *sfp = srp->parentfp;
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sg_io_hdr_t *hp = &srp->header;
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int dxfer_len = (int) hp->dxfer_len;
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int dxfer_dir = hp->dxfer_direction;
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Sg_scatter_hold *req_schp = &srp->data;
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Sg_scatter_hold *rsv_schp = &sfp->reserve;
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struct request_queue *q = sfp->parentdp->device->request_queue;
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struct rq_map_data map_data;
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int rw = hp->dxfer_direction == SG_DXFER_TO_DEV ? WRITE : READ;
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int rw = hp->dxfer_direction == SG_DXFER_TO_DEV ? WRITE : READ;
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SCSI_LOG_TIMEOUT(4, printk(KERN_INFO "sg_start_req: dxfer_len=%d\n",
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dxfer_len));
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rq = blk_get_request(q, rw, GFP_ATOMIC);
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rq = blk_get_request(q, rw, GFP_ATOMIC);
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if (!rq)
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if (!rq)
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return -ENOMEM;
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return -ENOMEM;
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@ -1648,27 +1657,6 @@ static int __sg_start_req(struct sg_request *srp, struct sg_io_hdr *hp,
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rq->sense = srp->sense_b;
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rq->sense = srp->sense_b;
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rq->retries = SG_DEFAULT_RETRIES;
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rq->retries = SG_DEFAULT_RETRIES;
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return 0;
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}
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static int sg_start_req(Sg_request *srp, unsigned char *cmd)
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{
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int res;
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Sg_fd *sfp = srp->parentfp;
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sg_io_hdr_t *hp = &srp->header;
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int dxfer_len = (int) hp->dxfer_len;
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int dxfer_dir = hp->dxfer_direction;
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Sg_scatter_hold *req_schp = &srp->data;
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Sg_scatter_hold *rsv_schp = &sfp->reserve;
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struct request_queue *q = sfp->parentdp->device->request_queue;
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struct rq_map_data map_data;
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SCSI_LOG_TIMEOUT(4, printk("sg_start_req: dxfer_len=%d\n", dxfer_len));
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res = __sg_start_req(srp, hp, cmd);
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if (res)
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return res;
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if ((dxfer_len <= 0) || (dxfer_dir == SG_DXFER_NONE))
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if ((dxfer_len <= 0) || (dxfer_dir == SG_DXFER_NONE))
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return 0;
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return 0;
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