Commit a09485df authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

ide: move request type specific code from ide_end_drive_cmd() to callers (v3)



* Move request type specific code from ide_end_drive_cmd() to callers.

* Remove stale ide_end_drive_cmd() documentation and drop no longer
  used 'stat' argument.  Then rename the function to ide_complete_rq().

v2:
* Fix handling of blk_pm_request() requests in task_no_data_intr().

v3:
* Some ide_no_data_taskfile() users (HPA code and HDIO_DRIVE_* ioctls
  handlers) access original command later so we need to update it in
  ide_complete_task().

There should be no functional changes caused by this patch.
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent e120237c
......@@ -124,7 +124,16 @@ ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat)
/* retry only "normal" I/O: */
if (!blk_fs_request(rq)) {
rq->errors = 1;
ide_end_drive_cmd(drive, stat, err);
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
ide_task_t *task = rq->special;
if (task)
ide_complete_task(drive, task, stat, err);
} else if (blk_pm_request(rq)) {
ide_complete_pm_rq(drive, rq);
return ide_stopped;
}
ide_complete_rq(drive, err);
return ide_stopped;
}
......
......@@ -101,7 +101,7 @@ static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
}
rq->errors = error;
/* fixme: need to move this local also */
ide_end_drive_cmd(drive, 0, 0);
ide_complete_rq(drive, 0);
return 0;
}
......
......@@ -144,49 +144,28 @@ int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
}
EXPORT_SYMBOL_GPL(ide_end_dequeued_request);
static void ide_complete_task(ide_drive_t *drive, ide_task_t *task,
u8 stat, u8 err)
void ide_complete_task(ide_drive_t *drive, ide_task_t *task, u8 stat, u8 err)
{
struct ide_taskfile *tf = &task->tf;
struct request *rq = task->rq;
tf->error = err;
tf->status = stat;
drive->hwif->tp_ops->tf_read(drive, task);
if (rq && rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
memcpy(rq->special, task, sizeof(*task));
if (task->tf_flags & IDE_TFLAG_DYN)
kfree(task);
}
/**
* ide_end_drive_cmd - end an explicit drive command
* @drive: command
* @stat: status bits
* @err: error bits
*
* Clean up after success/failure of an explicit drive command.
* These get thrown onto the queue so they are synchronized with
* real I/O operations on the drive.
*
* In LBA48 mode we have to read the register set twice to get
* all the extra information out.
*/
void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
void ide_complete_rq(ide_drive_t *drive, u8 err)
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = hwif->rq;
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
ide_task_t *task = (ide_task_t *)rq->special;
if (task)
ide_complete_task(drive, task, stat, err);
} else if (blk_pm_request(rq)) {
ide_complete_pm_rq(drive, rq);
return;
}
hwif->rq = NULL;
rq->errors = err;
......@@ -195,7 +174,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
blk_rq_bytes(rq))))
BUG();
}
EXPORT_SYMBOL(ide_end_drive_cmd);
EXPORT_SYMBOL(ide_complete_rq);
void ide_kill_rq(ide_drive_t *drive, struct request *rq)
{
......@@ -358,8 +337,9 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
#ifdef DEBUG
printk("%s: DRIVE_CMD (null)\n", drive->name);
#endif
ide_end_drive_cmd(drive, hwif->tp_ops->read_status(hwif),
ide_read_error(drive));
(void)hwif->tp_ops->read_status(hwif);
ide_complete_rq(drive, ide_read_error(drive));
return ide_stopped;
}
......
......@@ -502,7 +502,7 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
spin_lock_irqsave(&tape->lock, flags);
ide_end_drive_cmd(drive, 0, 0);
ide_complete_rq(drive, 0);
spin_unlock_irqrestore(&tape->lock, flags);
return 0;
......
......@@ -147,12 +147,9 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
}
}
return ide_error(drive, "task_no_data_intr", stat);
/* calls ide_end_drive_cmd */
}
if (!custom)
ide_end_drive_cmd(drive, stat, ide_read_error(drive));
else if (tf->command == ATA_CMD_IDLEIMMEDIATE) {
if (custom && tf->command == ATA_CMD_IDLEIMMEDIATE) {
hwif->tp_ops->tf_read(drive, task);
if (tf->lbal != 0xc4) {
printk(KERN_ERR "%s: head unload failed!\n",
......@@ -160,10 +157,22 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
ide_tf_dump(drive->name, tf);
} else
drive->dev_flags |= IDE_DFLAG_PARKED;
ide_end_drive_cmd(drive, stat, ide_read_error(drive));
} else if (tf->command == ATA_CMD_SET_MULTI)
} else if (custom && tf->command == ATA_CMD_SET_MULTI)
drive->mult_count = drive->mult_req;
if (custom == 0 || tf->command == ATA_CMD_IDLEIMMEDIATE) {
struct request *rq = hwif->rq;
u8 err = ide_read_error(drive);
if (blk_pm_request(rq))
ide_complete_pm_rq(drive, rq);
else {
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
ide_complete_task(drive, task, stat, err);
ide_complete_rq(drive, err);
}
}
return ide_stopped;
}
......@@ -321,9 +330,12 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
{
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
ide_task_t *task = rq->special;
u8 err = ide_read_error(drive);
ide_end_drive_cmd(drive, stat, err);
if (task)
ide_complete_task(drive, task, stat, err);
ide_complete_rq(drive, err);
return;
}
......
......@@ -1158,7 +1158,8 @@ extern ide_startstop_t ide_do_reset (ide_drive_t *);
extern int ide_devset_execute(ide_drive_t *drive,
const struct ide_devset *setting, int arg);
extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
void ide_complete_task(ide_drive_t *, ide_task_t *, u8, u8);
void ide_complete_rq(ide_drive_t *, u8);
void ide_tf_dump(const char *, struct ide_taskfile *);
......
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