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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-07-20 01:11:59 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-07-20 01:11:59 +0200 |
| commit | 89636af25d75d8672aea05d258be357d0dc4bd70 (patch) | |
| tree | dc1960bb144f76c75e82928ed3d601b52a275999 | |
| parent | 4bf9fdf7f21f118e2c5052ec8e46faf00eb5a4ea (diff) | |
| download | linux-exynos-89636af25d75d8672aea05d258be357d0dc4bd70.tar.gz linux-exynos-89636af25d75d8672aea05d258be357d0dc4bd70.tar.bz2 linux-exynos-89636af25d75d8672aea05d258be357d0dc4bd70.zip | |
ide: add support for SCSI ioctls to ide-floppy
Now that ide-floppy supports SG_IO we can add support for SCSI ioctls
(except deprecated SCSI_IOCTL_SEND_COMMAND and legacy CDROM_SEND_PACKET
ones - we can add them later iff really needed).
While at it remove handling of CDROMEJECT and CDROMCLOSETRAY ioctls from
generic_ide_ioctl():
- This prevents ide-{disk,tape,scsi} device drivers from obtaining
REQ_TYPE_BLOCK_PC type requests which are currently unsupported by
these drivers and which are potentially harmful (as reported by Andrew).
- There is no functionality loss since aforementioned ioctls will now be
handled by idefloppy_ioctl()->scsi_cmd_ioctl() (for devices using
ide-floppy driver) and by idecd_ioctl->cdrom_ioctl()->scsi_cmd_ioctl()
(for devices using ide-cd driver).
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| -rw-r--r-- | drivers/ide/ide-floppy.c | 18 | ||||
| -rw-r--r-- | drivers/ide/ide.c | 4 |
2 files changed, 17 insertions, 5 deletions
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index a21f585b1caa..ae8e1a64b8ad 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -99,6 +99,8 @@ #include <linux/bitops.h> #include <linux/mutex.h> +#include <scsi/scsi_ioctl.h> + #include <asm/byteorder.h> #include <asm/irq.h> #include <asm/uaccess.h> @@ -2099,7 +2101,21 @@ static int idefloppy_ioctl(struct inode *inode, struct file *file, case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS: return idefloppy_get_format_progress(drive, argp); } - return generic_ide_ioctl(drive, file, bdev, cmd, arg); + + /* + * skip SCSI_IOCTL_SEND_COMMAND (deprecated) + * and CDROM_SEND_PACKET (legacy) ioctls + */ + if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND) + err = scsi_cmd_ioctl(file, bdev->bd_disk->queue, + bdev->bd_disk, cmd, argp); + else + err = -ENOTTY; + + if (err == -ENOTTY) + err = generic_ide_ioctl(drive, file, bdev, cmd, arg); + + return err; } static int idefloppy_media_changed(struct gendisk *disk) diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index c438cc314238..5e88a060df06 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -1097,10 +1097,6 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device return 0; } - case CDROMEJECT: - case CDROMCLOSETRAY: - return scsi_cmd_ioctl(file, bdev->bd_disk->queue, bdev->bd_disk, cmd, p); - case HDIO_GET_BUSSTATE: if (!capable(CAP_SYS_ADMIN)) return -EACCES; |