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authorMike Christie <michaelc@cs.wisc.edu>2005-11-11 05:31:37 -0600
committerJames Bottomley <jejb@mulgrave.(none)>2005-12-14 19:04:11 -0800
commit17e01f216b611fc46956dcd9063aec4de75991e3 (patch)
treee8864490fddd1d67c7911101a1446709ec21720e /drivers/scsi/scsi_lib.c
parent6e68af666f5336254b5715dca591026b7324499a (diff)
[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>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c4
1 files changed, 3 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;
}