AcoSail/kernel_optimize_test
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ide-scsi: remove kmalloced struct request

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This converts ide-scsi to use blk_get/put_request instead of
kmalloc/kfree.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
FUJITA Tomonori 2008-07-24 22:53:35 +02:00 committed by Bartlomiej Zolnierkiewicz
parent 216f9a88fe
commit e27420d046
1 changed files with 15 additions and 10 deletions
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25
drivers/scsi/ide-scsi.c
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@ -207,15 +207,15 @@ static int idescsi_check_condition(ide_drive_t *drive,
/* stuff a sense request in front of our current request */
pc = kzalloc(sizeof(struct ide_atapi_pc), GFP_ATOMIC);
rq = kmalloc(sizeof(struct request), GFP_ATOMIC);
rq = blk_get_request(drive->queue, READ, GFP_ATOMIC);
buf = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_ATOMIC);
if (!pc || !rq || !buf) {
kfree(buf);
kfree(rq);
if (rq)
blk_put_request(rq);
kfree(pc);
return -ENOMEM;
}
blk_rq_init(NULL, rq);
rq->special = (char *) pc;
pc->rq = rq;
pc->buf = buf;
@ -232,6 +232,7 @@ static int idescsi_check_condition(ide_drive_t *drive,
ide_scsi_hex_dump(pc->c, 6);
}
rq->rq_disk = scsi->disk;
rq->ref_count++;
memcpy(rq->cmd, pc->c, 12);
ide_do_drive_cmd(drive, rq);
return 0;
@ -278,7 +279,7 @@ static int idescsi_end_request (ide_drive_t *drive, int uptodate, int nrsecs)
SCSI_SENSE_BUFFERSIZE);
kfree(pc->buf);
kfree(pc);
kfree(rq);
blk_put_request(rq);
pc = opc;
rq = pc->rq;
pc->scsi_cmd->result = (CHECK_CONDITION << 1) |
@ -309,7 +310,7 @@ static int idescsi_end_request (ide_drive_t *drive, int uptodate, int nrsecs)
pc->done(pc->scsi_cmd);
spin_unlock_irqrestore(host->host_lock, flags);
kfree(pc);
kfree(rq);
blk_put_request(rq);
scsi->pc = NULL;
return 0;
}
@ -583,6 +584,7 @@ static int idescsi_queue (struct scsi_cmnd *cmd,
ide_drive_t *drive = scsi->drive;
struct request *rq = NULL;
struct ide_atapi_pc *pc = NULL;
int write = cmd->sc_data_direction == DMA_TO_DEVICE;
if (!drive) {
scmd_printk (KERN_ERR, cmd, "drive not present\n");
@ -590,7 +592,7 @@ static int idescsi_queue (struct scsi_cmnd *cmd,
}
scsi = drive_to_idescsi(drive);
pc = kmalloc(sizeof(struct ide_atapi_pc), GFP_ATOMIC);
rq = kmalloc(sizeof(struct request), GFP_ATOMIC);
rq = blk_get_request(drive->queue, write, GFP_ATOMIC);
if (rq == NULL || pc == NULL) {
printk (KERN_ERR "ide-scsi: %s: out of memory\n", drive->name);
goto abort;
@ -620,17 +622,18 @@ static int idescsi_queue (struct scsi_cmnd *cmd,
}
}
blk_rq_init(NULL, rq);
rq->special = (char *) pc;
rq->cmd_type = REQ_TYPE_SPECIAL;
spin_unlock_irq(host->host_lock);
rq->ref_count++;
memcpy(rq->cmd, pc->c, 12);
blk_execute_rq_nowait(drive->queue, scsi->disk, rq, 0, NULL);
spin_lock_irq(host->host_lock);
return 0;
abort:
kfree (pc);
kfree (rq);
if (rq)
blk_put_request(rq);
cmd->result = DID_ERROR << 16;
done(cmd);
return 0;
@ -678,7 +681,9 @@ static int idescsi_eh_abort (struct scsi_cmnd *cmd)
if (blk_sense_request(scsi->pc->rq))
kfree(scsi->pc->buf);
kfree(scsi->pc->rq);
/* we need to call blk_put_request twice. */
blk_put_request(scsi->pc->rq);
blk_put_request(scsi->pc->rq);
kfree(scsi->pc);
scsi->pc = NULL;
@ -730,7 +735,7 @@ static int idescsi_eh_reset (struct scsi_cmnd *cmd)
kfree(scsi->pc->buf);
kfree(scsi->pc);
scsi->pc = NULL;
kfree(req);
blk_put_request(req);
/* now nuke the drive queue */
while ((req = elv_next_request(drive->queue))) {