AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

[SCSI] Remove last page_address from dc395x.c

Browse Source 
Dynamically map scattergather buffer instead of using page_address().

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Guennadi Liakhovetski 2006-06-09 22:25:23 +02:00 committed by James Bottomley
parent ede1e6f8b4
commit 9dc399de08
1 changed files with 35 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
drivers/scsi/dc395x.c
View File

@ -3347,21 +3347,14 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
{
u8 tempcnt, status;
struct scsi_cmnd *cmd = srb->cmd;
struct ScsiInqData *ptr;
enum dma_data_direction dir = cmd->sc_data_direction;
if (cmd->use_sg) {
struct scatterlist* sg = (struct scatterlist *)cmd->request_buffer;
ptr = (struct ScsiInqData *)(page_address(sg->page) + sg->offset);
} else {
ptr = (struct ScsiInqData *)(cmd->request_buffer);
}
int ckc_only = 1;
dprintkdbg(DBG_1, "srb_done: (pid#%li) <%02i-%i>\n", srb->cmd->pid,
srb->cmd->device->id, srb->cmd->device->lun);
dprintkdbg(DBG_SG, "srb_done: srb=%p sg=%i(%i/%i) buf=%p addr=%p\n",
dprintkdbg(DBG_SG, "srb_done: srb=%p sg=%i(%i/%i) buf=%p\n",
srb, cmd->use_sg, srb->sg_index, srb->sg_count,
cmd->request_buffer, ptr);
cmd->request_buffer);
status = srb->target_status;
if (srb->flag & AUTO_REQSENSE) {
dprintkdbg(DBG_0, "srb_done: AUTO_REQSENSE1\n");
@ -3500,28 +3493,46 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
srb->segment_x[0].address,
cmd->request_bufflen, dir);
}
if ((cmd->result & RES_DID) == 0 && cmd->cmnd[0] == INQUIRY
&& cmd->cmnd[2] == 0 && cmd->request_bufflen >= 8
&& dir != PCI_DMA_NONE && ptr && (ptr->Vers & 0x07) >= 2)
dcb->inquiry7 = ptr->Flags;
ckc_only = 0;
/* Check Error Conditions */
ckc_e:
if (cmd->cmnd[0] == INQUIRY) {
unsigned char *base = NULL;
struct ScsiInqData *ptr;
unsigned long flags = 0;
if (cmd->use_sg) {
struct scatterlist* sg = (struct scatterlist *)cmd->request_buffer;
size_t offset = 0, len = sizeof(struct ScsiInqData);
local_irq_save(flags);
base = scsi_kmap_atomic_sg(sg, cmd->use_sg, &offset, &len);
ptr = (struct ScsiInqData *)(base + offset);
} else
ptr = (struct ScsiInqData *)(cmd->request_buffer);
if (!ckc_only && (cmd->result & RES_DID) == 0
&& cmd->cmnd[2] == 0 && cmd->request_bufflen >= 8
&& dir != PCI_DMA_NONE && ptr && (ptr->Vers & 0x07) >= 2)
dcb->inquiry7 = ptr->Flags;
/*if( srb->cmd->cmnd[0] == INQUIRY && */
/* (host_byte(cmd->result) == DID_OK || status_byte(cmd->result) & CHECK_CONDITION) ) */
if (cmd->cmnd[0] == INQUIRY && (cmd->result == (DID_OK << 16)
|| status_byte(cmd->
result) &
if ((cmd->result == (DID_OK << 16)
|| status_byte(cmd->result) &
CHECK_CONDITION)) {
if (!dcb->init_tcq_flag) {
add_dev(acb, dcb, ptr);
dcb->init_tcq_flag = 1;
}
}
if (cmd->use_sg) {
scsi_kunmap_atomic_sg(base);
local_irq_restore(flags);
}
}
/* Here is the info for Doug Gilbert's sg3 ... */
cmd->resid = srb->total_xfer_length;