mirror_zfs/module
Christian Schwarz a73f361fdb Implement bookmark copying
This feature allows copying existing bookmarks using

    zfs bookmark fs#target fs#newbookmark

There are some niche use cases for such functionality,
e.g. when using bookmarks as markers for replication progress.

Copying redaction bookmarks produces a normal bookmark that
cannot be used for redacted send (we are not duplicating
the redaction object).

ZCP support for bookmarking (both creation and copying) will be
implemented in a separate patch based on this work.

Overview:

- Terminology:
    - source = existing snapshot or bookmark
    - new/bmark = new bookmark
- Implement bookmark copying in `dsl_bookmark.c`
  - create new bookmark node
  - copy source's `zbn_phys` to new's `zbn_phys`
  - zero-out redaction object id in copy
- Extend existing bookmark ioctl nvlist schema to accept
  bookmarks as sources
  - => `dsl_bookmark_create_nvl_validate` is authoritative
- use `dsl_dataset_is_before` check for both snapshot
  and bookmark sources
- Adjust CLI
  - refactor shortname expansion logic in `zfs_do_bookmark`
- Update man pages
  - warn about redaction bookmark handling
- Add test cases
  - CLI
  - pyyzfs libzfs_core bindings

Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Christian Schwarz <me@cschwarz.com>
Closes #9571
2020-02-11 13:19:12 -08:00
..
avl Wrap Linux module macros 2019-11-01 10:41:03 -07:00
icp ICP: Improve AES-GCM performance 2020-02-10 12:59:50 -08:00
lua cppcheck: (error) Address of local auto-variable assigned 2019-12-18 17:25:42 -08:00
nvpair cppcheck: (warning) Possible null pointer dereference: nvh 2019-12-18 17:25:57 -08:00
os Share some code for spa deadman tunables 2020-02-10 13:11:30 -08:00
spl OpenZFS restructuring - move platform specific sources 2019-09-06 11:26:26 -07:00
unicode Wrap Linux module macros 2019-11-01 10:41:03 -07:00
zcommon Implement bookmark copying 2020-02-11 13:19:12 -08:00
zfs Implement bookmark copying 2020-02-11 13:19:12 -08:00
.gitignore Adapt gitignore for modules 2019-12-02 13:23:47 -08:00
Makefile.in module/Makefile.in: don't run xargs if empty 2019-10-08 10:10:23 -07:00