• Cornelia Huck's avatar
    [S390] rework of channel measurement facility. · 94bb0633
    Cornelia Huck authored
    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: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
    Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
device_fsm.c 33.8 KB