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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-06-23 15:35:51 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-07 21:43:00 +0400 |
| commit | 665d66e8fad60a5a162c4615f27f916ad1a6d567 (patch) | |
| tree | 2e4f699f4fec1ca4010a39b9dd787fbd5f03b44d /drivers/ide/ide-iops.c | |
| parent | fa56d4cb4022c8b313c3b99236e1b87effc3655b (diff) | |
| download | linux-665d66e8fad60a5a162c4615f27f916ad1a6d567.tar.xz | |
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>
Diffstat (limited to 'drivers/ide/ide-iops.c')
| -rw-r--r-- | drivers/ide/ide-iops.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index b99873845d21..b14fa9a87c49 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -363,14 +363,6 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) * this point (lost interrupt). */ - /* - * FIXME: we race against the running IRQ here if - * this is called from non IRQ context. If we use - * disable_irq() we hang on the error path. Work - * is needed. - */ - disable_irq_nosync(hwif->irq); - udelay(1); tp_ops->dev_select(drive); SELECT_MASK(drive, 1); @@ -394,8 +386,6 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) SELECT_MASK(drive, 0); - enable_irq(hwif->irq); - if (error) { (void) ide_dump_status(drive, "set_drive_speed_status", stat); return error; |