[Bug 1814538] Re: [19.04 FEAT] zdsfs: Online VTOC refresh update

[Frank Heimes]

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Title:
  [19.04 FEAT] zdsfs: Online VTOC refresh update

Status in Ubuntu on IBM z Systems:
  Fix Released
Status in s390-tools package in Ubuntu:
  Fix Released

Bug description:
  Function:
  A Linux application can access new data sets that were created after zdsfs was mounted without the need to remount zdsfs

  Business Value:
  By removing the need to unmount/remount the zdsfs file system to access new data sets, the number of use cases for which customers can deploy Linux on Z together with z/OS is increased.

  Implementation:
  - zdsfs uses ECKD Reserve/Release to serialize access to the VTOC information whenever the list of available data sets is queried (readdir, open)

  Will be made available with s390-tools 2.8.0

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