All autopkgtests for the newly accepted linux-gcp-5.3 (5.3.0-1008.9~18.04.1) 
for bionic have finished running.
The following regressions have been reported in tests triggered by the package:

linux-gcp-5.3/unknown (amd64)


Please visit the excuses page listed below and investigate the failures, 
proceeding afterwards as per the StableReleaseUpdates policy regarding 
autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/bionic/update_excuses.html#linux-gcp-5.3

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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https://bugs.launchpad.net/bugs/1846265

Title:
  shiftfs: rework how shiftfs opens files

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Eoan:
  Fix Committed

Bug description:
  SRU Justification

  Impact: Currently, shiftfs maintains a kmem cache for struct
  shiftfs_file_info which stashes away a struct path and the struct file
  for the underlay. The path however is never used anywhere so the
  struct shiftfs_file_info and therefore the whole kmem cache can go
  away. This removes code and makes the whole logic simpler to
  understand and reason about.

  Fix: Remove the kmem cache for struct shiftfs_file_info and struct
  shiftfs_file_info itself and move to the same model as overlayfs and
  just stash away the struct file for the underlay in file->private_data
  of the shiftfs struct file

  Regression Potential: Limited to shiftfs. The basic logic is
  unchanged. It is just simplified so regression potential should be
  fairly low.

  Test Case: Tested with LXD on a kernel with the patch applied and
  running various standard workloads without any observable regressions.

  Target Kernels: All LTS kernels with support for shiftfs.

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