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| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2006-06-29 17:08:41 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-06-29 17:08:41 +0400 |
| commit | 94bb063312d872d9269deb2e5c0c7c6d5b0318e1 (patch) | |
| tree | bef899fbe742ee31d93ff0e077898d4562086f9e /include/asm-s390 | |
| parent | 5b5dd21a8e6652fc8b58a32757575cc7fce2b54d (diff) | |
| download | linux-94bb063312d872d9269deb2e5c0c7c6d5b0318e1.tar.xz | |
[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>
Diffstat (limited to 'include/asm-s390')
| -rw-r--r-- | include/asm-s390/cmb.h | 4 |
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) |