diff options
| author | Tejun Heo | 2008-01-26 20:13:10 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz | 2008-01-26 20:13:10 +0100 |
| commit | 35cf2b94d0ecb7034cfa05dd725721538bbb83fc (patch) | |
| tree | 6c3681f06b078626aeeb8de1e28bbdd458f95c70 /include/linux/kd.h | |
| parent | cmd64x: remove /proc/ide/cmd64x (diff) | |
| download | kernel-qcow2-linux-35cf2b94d0ecb7034cfa05dd725721538bbb83fc.tar.gz kernel-qcow2-linux-35cf2b94d0ecb7034cfa05dd725721538bbb83fc.tar.xz kernel-qcow2-linux-35cf2b94d0ecb7034cfa05dd725721538bbb83fc.zip | |
ide: fix ->io_32bit race in ide_taskfile_ioctl()
In ide_taskfile_ioctl(), there was a race condition involving
drive->io_32bit. It was cleared and restored during ioctl
requests but there was no synchronization with other requests.
So, other requests could execute with the altered ->io_32bit
setting or updated drive->io_32bit could be overwritten by
ide_taskfile_ioctl().
This patch adds IDE_TFLAG_IO_16BIT flag to indicate to
ide_pio_datablock() that 16-bit I/O is needed regardless of
drive->io_32bit settting.
Bart:
- ported it over recent IDE changes
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include/linux/kd.h')
0 files changed, 0 insertions, 0 deletions