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| author |   Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-06-23 11:35:51 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-08-07 10:43:00 -0700 |
| commit | 665d66e8fad60a5a162c4615f27f916ad1a6d567 (patch) | |
| tree | 2e4f699f4fec1ca4010a39b9dd787fbd5f03b44d /include/linux/ide.h | |
| parent | ide: allow ide_dev_read_id() to be called from the IRQ context (diff) | |
| download | linux-dev-665d66e8fad60a5a162c4615f27f916ad1a6d567.tar.xz linux-dev-665d66e8fad60a5a162c4615f27f916ad1a6d567.zip | |
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 'include/linux/ide.h')
| -rw-r--r-- | include/linux/ide.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index cb6cd0459a5e..803c1ae31237 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -258,6 +258,7 @@ enum { IDE_TFLAG_DYN = (1 << 5), IDE_TFLAG_FS = (1 << 6), IDE_TFLAG_MULTI_PIO = (1 << 7), + IDE_TFLAG_SET_XFER = (1 << 8), }; enum { @@ -294,7 +295,7 @@ struct ide_cmd { } out, in; } valid; - u8 tf_flags; + u16 tf_flags; u8 ftf_flags; /* for TASKFILE ioctl */ int protocol; |