[Libguestfs] [nbdkit PATCH 0/4] More work with retry safety

[Eric Blake]

I'm still working on another set of patches to have reopen call
.finalize/.prepare (so that another filter can safely appear between
retry and the plugin), but for tonight, these are the patches I think
are ready to go.

Eric Blake (4):
  retry: Handle can_fua and can_fast_zero changes
  tests: Test retry with different fua/fast-zero flags
  server: Close backends if a filter's .open fails
  server: Better documentation of .open ordering

 docs/nbdkit-filter.pod         |  17 +++--
 server/backend.c               |   5 +-
 server/connections.c           |   2 +-
 server/filters.c               |   8 ++-
 filters/retry/retry.c          |  20 ++++++
 tests/test-layers-filter.c     |   5 +-
 tests/test-layers.c            |  14 ++--
 tests/Makefile.am              |   2 +
 tests/test-retry-zero-flags.sh | 126 +++++++++++++++++++++++++++++++++
 9 files changed, 183 insertions(+), 16 deletions(-)
 create mode 100755 tests/test-retry-zero-flags.sh

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2.21.0