diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-04 10:11:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-04 10:11:16 -0700 |
| commit | 8d00647f2cf0780497274a4b0ab0e66509579459 (patch) | |
| tree | b6f5171769896b69aa603d870f2b870c10703db9 /drivers | |
| parent | 927498217c104aab27b81c785ce3a489491a8964 (diff) | |
| parent | 8c3ce5bece2e6e233c1d05b460883046d020fbf9 (diff) | |
Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] cio: Fix handling of interrupt for csch().
[S390] page_mkclean data corruption.
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/cio/device_status.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c index 25d99bd2808..aa96e675259 100644 --- a/drivers/s390/cio/device_status.c +++ b/drivers/s390/cio/device_status.c @@ -221,6 +221,14 @@ ccw_device_accumulate_irb(struct ccw_device *cdev, struct irb *irb) cdev_irb = &cdev->private->irb; + /* + * If the clear function had been performed, all formerly pending + * status at the subchannel has been cleared and we must not pass + * intermediate accumulated status to the device driver. + */ + if (irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC) + memset(&cdev->private->irb, 0, sizeof(struct irb)); + /* Copy bits which are valid only for the start function. */ if (irb->scsw.fctl & SCSW_FCTL_START_FUNC) { /* Copy key. */ |