diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-03-13 17:28:41 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-03-13 11:40:24 -0600 |
| commit | 17cb960f29c29ee07bf6848ada3265f4be55972e (patch) | |
| tree | 8571a25cac75a45261456dbe6711f324dc5b1044 /drivers/scsi/scsi_sysfs.c | |
| parent | ef6fa64f9b8e1611854077ea9213f2eef2428cd2 (diff) | |
bsg: split handling of SCSI CDBs vs transport requeues
The current BSG design tries to shoe-horn the transport-specific
passthrough commands into the overall framework for SCSI passthrough
requests. This has a couple problems:
- each passthrough queue has to set the QUEUE_FLAG_SCSI_PASSTHROUGH flag
despite not dealing with SCSI commands at all. Because of that these
queues could also incorrectly accept SCSI commands from in-kernel
users or through the legacy SCSI_IOCTL_SEND_COMMAND ioctl.
- the real SCSI bsg queues also incorrectly accept bsg requests of the
BSG_SUB_PROTOCOL_SCSI_TRANSPORT type
- the bsg transport code is almost unredable because it tries to reuse
different SCSI concepts for its own purpose.
This patch instead adds a new bsg_ops structure to handle the two cases
differently, and thus solves all of the above problems. Another side
effect is that the bsg-lib queues also don't need to embedd a
struct scsi_request anymore.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/scsi/scsi_sysfs.c')
| -rw-r--r-- | drivers/scsi/scsi_sysfs.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 91b90f672d23..7142c8be1099 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -1292,8 +1292,7 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev) transport_add_device(&sdev->sdev_gendev); sdev->is_visible = 1; - error = bsg_register_queue(rq, &sdev->sdev_gendev, NULL, NULL); - + error = bsg_scsi_register_queue(rq, &sdev->sdev_gendev); if (error) /* we're treating error on bsg register as non-fatal, * so pretend nothing went wrong */ |