Commit d99c9da2 authored by Borislav Petkov's avatar Borislav Petkov Committed by Bartlomiej Zolnierkiewicz
Browse files

ide-tape: remove mtio.h related comments 



Those are already in mtio.h.

Bart:
- undo 'unsigned int/unsigned long' -> 'uint/ulong' conversion

Signed-off-by: default avatarBorislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 419d4741

drivers/ide/ide-tape.c

+15 −81
Original line number Diff line number Diff line
@@ -3152,67 +3152,18 @@ static int idetape_write_filemark (ide_drive_t *drive) 
}



/*

 *	idetape_mtioctop is called from idetape_chrdev_ioctl when

 *	the general mtio MTIOCTOP ioctl is requested.

 * Called from idetape_chrdev_ioctl when the general mtio MTIOCTOP ioctl is

 * requested.

 *

 *	We currently support the following mtio.h operations:

 *

 *	MTFSF	-	Space over mt_count filemarks in the positive direction.

 *			The tape is positioned after the last spaced filemark.

 *

 *	MTFSFM	-	Same as MTFSF, but the tape is positioned before the

 *			last filemark.

 *

 *	MTBSF	-	Steps background over mt_count filemarks, tape is

 *			positioned before the last filemark.

 *

 *	MTBSFM	-	Like MTBSF, only tape is positioned after the last filemark.

 *

 *	Note:

 *

 *		MTBSF and MTBSFM are not supported when the tape doesn't

 *		support spacing over filemarks in the reverse direction.

 *		In this case, MTFSFM is also usually not supported (it is

 *		supported in the rare case in which we crossed the filemark

 *		during our read-ahead pipelined operation mode).

 *		

 *	MTWEOF	-	Writes mt_count filemarks. Tape is positioned after

 *			the last written filemark.

 *

 *	MTREW	-	Rewinds tape.

 *

 *	MTLOAD	-	Loads the tape.

 *

 *	MTOFFL	-	Puts the tape drive "Offline": Rewinds the tape and

 *	MTUNLOAD	prevents further access until the media is replaced.

 *

 *	MTNOP	-	Flushes tape buffers.

 *

 *	MTRETEN	-	Retension media. This typically consists of one end

 *			to end pass on the media.

 *

 *	MTEOM	-	Moves to the end of recorded data.

 *

 *	MTERASE	-	Erases tape.

 *

 *	MTSETBLK - 	Sets the user block size to mt_count bytes. If

 *			mt_count is 0, we will attempt to autodetect

 *			the block size.

 *

 *	MTSEEK	-	Positions the tape in a specific block number, where

 *			each block is assumed to contain which user_block_size

 *			bytes.

 *

 *	MTSETPART - 	Switches to another tape partition.

 *

 *	MTLOCK - 	Locks the tape door.

 *

 *	MTUNLOCK - 	Unlocks the tape door.

 * Note: MTBSF and MTBSFM are not supported when the tape doesn't support

 * spacing over filemarks in the reverse direction. In this case, MTFSFM is also

 * usually not supported (it is supported in the rare case in which we crossed

 * the filemark during our read-ahead pipelined operation mode).

 *

 * The following commands are currently not supported:

 *

 *	MTFSS, MTBSS, MTWSM, MTSETDENSITY,

 *	MTSETDRVBUFFER, MT_ST_BOOLEANS, MT_ST_WRITE_THRESHOLD.

 * MTFSS, MTBSS, MTWSM, MTSETDENSITY, MTSETDRVBUFFER, MT_ST_BOOLEANS,

 * MT_ST_WRITE_THRESHOLD.

 */

static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count)

{
@@ -3329,29 +3280,12 @@ static int idetape_mtioctop (ide_drive_t *drive,short mt_op,int mt_count) 
}



/*

 *	Our character device ioctls.

 *

 *	General mtio.h magnetic io commands are supported here, and not in

 *	the corresponding block interface.

 *

 *	The following ioctls are supported:

 *

 *	MTIOCTOP -	Refer to idetape_mtioctop for detailed description.

 *

 *	MTIOCGET - 	The mt_dsreg field in the returned mtget structure

 *			will be set to (user block size in bytes <<

 *			MT_ST_BLKSIZE_SHIFT) & MT_ST_BLKSIZE_MASK.

 *

 *			The mt_blkno is set to the current user block number.

 *			The other mtget fields are not supported.

 *

 *	MTIOCPOS -	The current tape "block position" is returned. We

 *			assume that each block contains user_block_size

 *			bytes.

 *

 *	Our own ide-tape ioctls are supported on both interfaces.

 * Our character device ioctls. General mtio.h magnetic io commands are

 * supported here, and not in the corresponding block interface. Our own

 * ide-tape ioctls are supported on both interfaces.

 */

static int idetape_chrdev_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)

static int idetape_chrdev_ioctl(struct inode *inode, struct file *file,

				unsigned int cmd, unsigned long arg)

{

	struct ide_tape_obj *tape = ide_tape_f(file);

	ide_drive_t *drive = tape->drive;