tree 2e4f699f4fec1ca4010a39b9dd787fbd5f03b44d
parent fa56d4cb4022c8b313c3b99236e1b87effc3655b
author Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> 1245756951 +0000
committer David S. Miller <davem@davemloft.net> 1249666980 -0700

ide: fix races in handling of user-space SET XFER commands

* Make cmd->tf_flags field 'u16' and add IDE_TFLAG_SET_XFER taskfile flag.

* Update ide_finish_cmd() to set xfer / re-read id if the new flag is set.

* Convert set_xfer_rate() (write handler for /proc/ide/hd?/current_speed)
  and ide_cmd_ioctl() (HDIO_DRIVE_CMD ioctl handler) to use the new flag.

* Remove no longer needed disable_irq_nosync() + enable_irq() from
  ide_config_drive_speed().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>