[S390] rework of channel measurement facility.

Fixes for several channel measurement facility bugs:
* Blocks copied from the hardware might not be consistent. Solve this
  by moving the copying into idle state and repeating the copying.
* avg_sample_interval changed with every read, even though no new block
  was available. Solve this by storing a timestamp when the last new
  block was received.
* Several locking issues.
* Measurements were not reenabled after a disconnected device became
  available again.
* Remove #defines for ioctls that were never implemented.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/include/asm-s390/cmb.h b/include/asm-s390/cmb.h
index 2d09950a9c11..241756f80df3 100644
--- a/include/asm-s390/cmb.h
+++ b/include/asm-s390/cmb.h
@@ -44,10 +44,6 @@ struct cmbdata {
 #define BIODASDCMFENABLE        _IO(DASD_IOCTL_LETTER,32)
 /* enable channel measurement */
 #define BIODASDCMFDISABLE       _IO(DASD_IOCTL_LETTER,33)
-/* reset channel measurement block */
-#define BIODASDRESETCMB         _IO(DASD_IOCTL_LETTER,34)
-/* read channel measurement data */
-#define BIODASDREADCMB          _IOWR(DASD_IOCTL_LETTER,32,__u64)
 /* read channel measurement data */
 #define BIODASDREADALLCMB       _IOWR(DASD_IOCTL_LETTER,33,struct cmbdata)