};
/*
- * Dummy kobj_map->probe function.
- * The default ->probe function will call modprobe, which is
- * pointless as this module is already loaded.
+ * Don't request a new module, as that could deadlock in multipath
+ * environment.
*/
-static struct kobject *sd_default_probe(dev_t devt, int *partno, void *data)
+static void sd_default_probe(dev_t devt)
{
- return NULL;
}
/*
cmd->transfersize = data_len;
rq->timeout = SD_TIMEOUT;
- return scsi_init_io(cmd);
+ return scsi_alloc_sgtables(cmd);
}
static blk_status_t sd_setup_write_same16_cmnd(struct scsi_cmnd *cmd,
cmd->transfersize = data_len;
rq->timeout = unmap ? SD_TIMEOUT : SD_WRITE_SAME_TIMEOUT;
- return scsi_init_io(cmd);
+ return scsi_alloc_sgtables(cmd);
}
static blk_status_t sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd,
cmd->transfersize = data_len;
rq->timeout = unmap ? SD_TIMEOUT : SD_WRITE_SAME_TIMEOUT;
- return scsi_init_io(cmd);
+ return scsi_alloc_sgtables(cmd);
}
static blk_status_t sd_setup_write_zeroes_cmnd(struct scsi_cmnd *cmd)
* knows how much to actually write.
*/
rq->__data_len = sdp->sector_size;
- ret = scsi_init_io(cmd);
+ ret = scsi_alloc_sgtables(cmd);
rq->__data_len = blk_rq_bytes(rq);
return ret;
unsigned int dif;
bool dix;
- ret = scsi_init_io(cmd);
+ ret = scsi_alloc_sgtables(cmd);
if (ret != BLK_STS_OK)
return ret;
+ ret = BLK_STS_IOERR;
if (!scsi_device_online(sdp) || sdp->changed) {
scmd_printk(KERN_ERR, cmd, "device offline or changed\n");
- return BLK_STS_IOERR;
+ goto fail;
}
if (blk_rq_pos(rq) + blk_rq_sectors(rq) > get_capacity(rq->rq_disk)) {
scmd_printk(KERN_ERR, cmd, "access beyond end of device\n");
- return BLK_STS_IOERR;
+ goto fail;
}
if ((blk_rq_pos(rq) & mask) || (blk_rq_sectors(rq) & mask)) {
scmd_printk(KERN_ERR, cmd, "request not aligned to the logical block size\n");
- return BLK_STS_IOERR;
+ goto fail;
}
/*
if (req_op(rq) == REQ_OP_ZONE_APPEND) {
ret = sd_zbc_prepare_zone_append(cmd, &lba, nr_blocks);
if (ret)
- return ret;
+ goto fail;
}
fua = rq->cmd_flags & REQ_FUA ? 0x8 : 0;
}
if (unlikely(ret != BLK_STS_OK))
- return ret;
+ goto fail;
/*
* We shouldn't disconnect in the middle of a sector, so with a dumb
blk_rq_sectors(rq)));
/*
- * This indicates that the command is ready from our end to be
- * queued.
+ * This indicates that the command is ready from our end to be queued.
*/
return BLK_STS_OK;
+fail:
+ scsi_free_sgtables(cmd);
+ return ret;
}
static blk_status_t sd_init_command(struct scsi_cmnd *cmd)
static void sd_rescan(struct device *dev)
{
struct scsi_disk *sdkp = dev_get_drvdata(dev);
- int ret;
- ret = sd_revalidate_disk(sdkp->disk);
- revalidate_disk_size(sdkp->disk, ret == 0);
+ sd_revalidate_disk(sdkp->disk);
}
static int sd_ioctl(struct block_device *bdev, fmode_t mode,
sdkp->first_scan = 0;
- set_capacity_revalidate_and_notify(disk,
- logical_to_sectors(sdp, sdkp->capacity), false);
+ set_capacity_and_notify(disk, logical_to_sectors(sdp, sdkp->capacity));
sd_config_write_same(sdkp);
kfree(buffer);
* capacity to 0.
*/
if (sd_zbc_revalidate_zones(sdkp))
- set_capacity_revalidate_and_notify(disk, 0, false);
+ set_capacity_and_notify(disk, 0);
out:
return 0;
free_opal_dev(sdkp->opal_dev);
- blk_register_region(devt, SD_MINORS, NULL,
- sd_default_probe, NULL, NULL);
-
mutex_lock(&sd_ref_mutex);
dev_set_drvdata(dev, NULL);
put_device(&sdkp->dev);
SCSI_LOG_HLQUEUE(3, printk("init_sd: sd driver entry point\n"));
for (i = 0; i < SD_MAJORS; i++) {
- if (register_blkdev(sd_major(i), "sd") != 0)
+ if (__register_blkdev(sd_major(i), "sd", sd_default_probe))
continue;
majors++;
- blk_register_region(sd_major(i), SD_MINORS, NULL,
- sd_default_probe, NULL, NULL);
}
if (!majors)
class_unregister(&sd_disk_class);
- for (i = 0; i < SD_MAJORS; i++) {
- blk_unregister_region(sd_major(i), SD_MINORS);
+ for (i = 0; i < SD_MAJORS; i++)
unregister_blkdev(sd_major(i), "sd");
- }
}
module_init(init_sd);