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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-07-20 01:11:59 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-07-20 01:11:59 +0200
commit89636af25d75d8672aea05d258be357d0dc4bd70 (patch)
treedc1960bb144f76c75e82928ed3d601b52a275999
parent4bf9fdf7f21f118e2c5052ec8e46faf00eb5a4ea (diff)
downloadlinux-linaro-89636af25d75d8672aea05d258be357d0dc4bd70.tar.gz
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.c18
-rw-r--r--drivers/ide/ide.c4
2 files changed, 17 insertions, 5 deletions
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index a21f585b1ca..ae8e1a64b8a 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 c438cc31423..5e88a060df0 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;