diff options
| author | Boaz Harrosh <bharrosh@panasas.com> | 2007-09-09 21:13:42 +0300 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-11 18:22:41 -0600 |
| commit | 3ce7c6588637614b00072569679791a04898c790 (patch) | |
| tree | 34fb29830a6fe82c129ac78ba2bb7835fe065ec0 /drivers/scsi/imm.c | |
| parent | 57643c711c3759623e7ac651a4a418858cdaeae5 (diff) | |
| download | lwn-3ce7c6588637614b00072569679791a04898c790.tar.gz lwn-3ce7c6588637614b00072569679791a04898c790.zip | |
[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>
Diffstat (limited to 'drivers/scsi/imm.c')
| -rw-r--r-- | drivers/scsi/imm.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c index a3d0c6b14958..f97d172844be 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++; |