diff options
| author | Mike Christie <michaelc@cs.wisc.edu> | 2005-11-11 14:31:37 +0300 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2005-12-15 06:04:11 +0300 |
| commit | 17e01f216b611fc46956dcd9063aec4de75991e3 (patch) | |
| tree | e8864490fddd1d67c7911101a1446709ec21720e | |
| parent | 6e68af666f5336254b5715dca591026b7324499a (diff) | |
| download | linux-17e01f216b611fc46956dcd9063aec4de75991e3.tar.xz | |
[SCSI] add retries field to request for REQ_BLOCK_PC use
For tape we need to control the retries. This patch adds a retries
counter on the request for REQ_BLOCK_PC commands originating from
scsi_execute* to use. REQ_BLOCK_PC commands comming from the block
layer SG_IO path continue to use the retires set in the ULD init_command.
(scsi_execute* does not set the gendisk so we do not execute
the init_command in that path).
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 4 | ||||
| -rw-r--r-- | include/linux/blkdev.h | 1 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index eb0cfbfbcf8f..365843a1561f 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -259,6 +259,7 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, memcpy(req->cmd, cmd, req->cmd_len); req->sense = sense; req->sense_len = 0; + req->retries = retries; req->timeout = timeout; req->flags |= flags | REQ_BLOCK_PC | REQ_SPECIAL | REQ_QUIET; @@ -472,6 +473,7 @@ int scsi_execute_async(struct scsi_device *sdev, const unsigned char *cmd, req->sense = sioc->sense; req->sense_len = 0; req->timeout = timeout; + req->retries = retries; req->flags |= REQ_BLOCK_PC | REQ_QUIET; req->end_io_data = sioc; @@ -1393,7 +1395,7 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req) cmd->sc_data_direction = DMA_NONE; cmd->transfersize = req->data_len; - cmd->allowed = 3; + cmd->allowed = req->retries; cmd->timeout_per_command = req->timeout; cmd->done = scsi_generic_done; } diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 9a68716dcf75..509e9a03a328 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -184,6 +184,7 @@ struct request { void *sense; unsigned int timeout; + int retries; /* * For Power Management requests |