[pbs-devel] [PATCH proxmox-backup v3 0/5] add 'sync-level' to datatore tuning options

[Dominik Csapak <d.csapak@proxmox.com>]

adds a sync-level option to the datastore tuning option, so that
the user can decide which level of file consitency is wanted, and
afterwards set the default to 'filesystem'

changes from v2:
* rebase on master
* fix typos in documentation

changes from v1:
* rebase on master
* reword documentation to be slightly less opinionated about which
  option is better

changes from RFC:
* seperate introducing of the option and changing the default
* renaming to DatastoreFSyncLevel
* adding more and better comments + docs
* saving the whole level and not only a bool in the datastore/chunk_store
* adding a fsync on the dir handle for the 'file' case in insert_chunk
* split the change to 'replace_file' into seperate patch

the first patch is mostly unrelated, but it introduces a place where
we can document the option, and could be applied independent from
the remaining patches of this series.

the second patch only changes the use of replace_file in insert_chunk,
so that could also be applied independently.

Dominik Csapak (5):
  docs: add information about chunk order option for datastores
  pbs-datastore: chunk_store: use replace_file in insert_chunk
  datastore: implement sync-level tuning for datastores
  docs: add documentation about the 'sync-level' tuning
  datastore: make 'filesystem' the default sync-level

 docs/storage.rst                 | 59 ++++++++++++++++++++++++++++
 pbs-api-types/src/datastore.rs   | 37 ++++++++++++++++++
 pbs-datastore/src/chunk_store.rs | 66 +++++++++++++++++++++++---------
 pbs-datastore/src/datastore.rs   | 39 +++++++++++++++++--
 src/api2/backup/environment.rs   |  2 +
 src/api2/config/datastore.rs     |  9 ++++-
 6 files changed, 187 insertions(+), 25 deletions(-)

-- 
2.30.2