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authorBoaz Harrosh <bharrosh@panasas.com>2007-09-09 21:13:42 +0300
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-01-11 18:22:41 -0600
commit3ce7c6588637614b00072569679791a04898c790 (patch)
tree34fb29830a6fe82c129ac78ba2bb7835fe065ec0
parent57643c711c3759623e7ac651a4a418858cdaeae5 (diff)
[SCSI] imm: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup - Not ready for sg-chaining Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Tested-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
-rw-r--r--drivers/scsi/imm.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index a3d0c6b1495..f97d172844b 100644
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -837,19 +837,16 @@ static int imm_engine(imm_struct *dev, struct scsi_cmnd *cmd)
/* Phase 4 - Setup scatter/gather buffers */
case 4:
- if (cmd->use_sg) {
- /* if many buffers are available, start filling the first */
- cmd->SCp.buffer =
- (struct scatterlist *) cmd->request_buffer;
+ if (scsi_bufflen(cmd)) {
+ cmd->SCp.buffer = scsi_sglist(cmd);
cmd->SCp.this_residual = cmd->SCp.buffer->length;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
} else {
- /* else fill the only available buffer */
cmd->SCp.buffer = NULL;
- cmd->SCp.this_residual = cmd->request_bufflen;
- cmd->SCp.ptr = cmd->request_buffer;
+ cmd->SCp.this_residual = 0;
+ cmd->SCp.ptr = NULL;
}
- cmd->SCp.buffers_residual = cmd->use_sg - 1;
+ cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
cmd->SCp.phase++;
if (cmd->SCp.this_residual & 0x01)
cmd->SCp.this_residual++;