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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

drivers/ide/ide-eh.c

+10 −1
Original line number Diff line number Diff line
@@ -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;

	}

drivers/ide/ide-floppy.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

}

drivers/ide/ide-io.c

+10 −30
Original line number Diff line number Diff line
@@ -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;

}

drivers/ide/ide-tape.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

drivers/ide/ide-taskfile.c

+19 −7
Original line number Diff line number Diff line
@@ -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;

	}