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ide: set REQ_PREEMPT request flag in ide_do_drive_cmd() users 

* Set REQ_PREEMPT request flag in ide_do_drive_cmd() users
  for ide_preempt and ide_head_wait action types.

* Remove setting REQ_PREEMPT from ide_do_drive_cmd().

While at it:

* Set 'where' variable outside ide_lock.

This is a preparation for converting IDE to use blk_execute_rq().

There should be no functional changes caused by this patch.

Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-07-15 21:21:41 +02:00
parent 5d0cc8ae29
commit e8a96aa713
6 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/ide/ide-cd.c
View File

@ -216,6 +216,7 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
rq->data_len = 18;
rq->cmd_type = REQ_TYPE_SENSE;
rq->cmd_flags |= REQ_PREEMPT;
/* NOTE! Save the failed command in "rq->buffer" */
rq->buffer = (void *) failed_command;

1
drivers/ide/ide-floppy.c
View File

@ -289,6 +289,7 @@ static void idefloppy_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc,
ide_init_drive_cmd(rq);
rq->buffer = (char *) pc;
rq->cmd_type = REQ_TYPE_SPECIAL;
rq->cmd_flags |= REQ_PREEMPT;
rq->rq_disk = floppy->disk;
(void) ide_do_drive_cmd(drive, rq, ide_preempt);
}

7
drivers/ide/ide-io.c
View File

@ -1600,13 +1600,12 @@ int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t actio
rq->end_io = blk_end_sync_rq;
}
if (action == ide_preempt || action == ide_head_wait)
where = ELEVATOR_INSERT_FRONT;
spin_lock_irqsave(&ide_lock, flags);
if (action == ide_preempt)
hwgroup->rq = NULL;
if (action == ide_preempt || action == ide_head_wait) {
where = ELEVATOR_INSERT_FRONT;
rq->cmd_flags |= REQ_PREEMPT;
}
__elv_add_request(drive->queue, rq, where, 0);
ide_do_request(hwgroup, IDE_NO_IRQ);
spin_unlock_irqrestore(&ide_lock, flags);

1
drivers/ide/ide-tape.c
View File

@ -688,6 +688,7 @@ static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc,
struct ide_tape_obj *tape = drive->driver_data;
idetape_init_rq(rq, REQ_IDETAPE_PC1);
rq->cmd_flags |= REQ_PREEMPT;
rq->buffer = (char *) pc;
rq->rq_disk = tape->disk;
(void) ide_do_drive_cmd(drive, rq, ide_preempt);

1
drivers/ide/ide.c
View File

@ -606,6 +606,7 @@ static int generic_ide_resume(struct device *dev)
memset(&rqpm, 0, sizeof(rqpm));
memset(&args, 0, sizeof(args));
rq.cmd_type = REQ_TYPE_PM_RESUME;
rq.cmd_flags |= REQ_PREEMPT;
rq.special = &args;
rq.data = &rqpm;
rqpm.pm_step = ide_pm_state_start_resume;

1
drivers/scsi/ide-scsi.c
View File

@ -235,6 +235,7 @@ static int idescsi_check_condition(ide_drive_t *drive,
pc->c[0] = REQUEST_SENSE;
pc->c[4] = pc->req_xfer = pc->buf_size = SCSI_SENSE_BUFFERSIZE;
rq->cmd_type = REQ_TYPE_SENSE;
rq->cmd_flags |= REQ_PREEMPT;
pc->timeout = jiffies + WAIT_READY;
/* NOTE! Save the failed packet command in "rq->buffer" */
rq->buffer = (void *) failed_cmd->special;