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fuchsia / third_party / f2fs / aab6d5be64fea8db882e62e0802cb3f22fc69289
commitaab6d5be64fea8db882e62e0802cb3f22fc69289[log] [tgz]
authorSeokhwan Kim <sukka.kim@samsung.com>Sat Jul 31 14:34:18 2021 +0900
committerBrett Wilson <brettw@google.com>Sun Aug 01 21:58:58 2021 +0000
treee5125ac20ef70f6008ae0b6f8bde816c90a53225
parent5ef37bfb381bfbda0d3666f61467306cb6dfe992 [diff]
[f2fs] Use typed channel APIs instead of raw zx::channel

It removes using deprecated raw channels and
updates patch files to main fuchsia for f2fs.

Test: fx test f2fs-unittest f2fs-fs-tests f2fs-slow-fs-tests

Change-Id: I00578b5c38bce802540a4902972d5fcfca91e6e8
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/f2fs/+/563221
Reviewed-by: Brett Wilson <brettw@google.com>
13 files changed
tree: e5125ac20ef70f6008ae0b6f8bde816c90a53225
  1. patches/
  2. test/
  3. test_files/
  4. third_party/
  5. tools/
  6. AUTHORS
  7. bcache.cc
  8. bcache.h
  9. BUILD.gn
  10. checkpoint.cc
  11. CONTRIBUTING.md
  12. data.cc
  13. dir.cc
  14. dir.h
  15. dir_hash.cc
  16. f2fs.cc
  17. f2fs.h
  18. f2fs_internal.h
  19. f2fs_layout.h
  20. f2fs_lib.h
  21. f2fs_types.h
  22. file.cc
  23. file.h
  24. fsck.cc
  25. fsck.h
  26. gc.cc
  27. inline.cc
  28. LICENSE
  29. mkfs.cc
  30. mkfs.h
  31. mount.cc
  32. mount.h
  33. namei.cc
  34. namestring.h
  35. node.cc
  36. node.h
  37. PATENTS
  38. README.md
  39. recovery.cc
  40. segment.cc
  41. segment.h
  42. super.cc
  43. vnode.cc
  44. vnode.h
  45. vnode_cache.cc
  46. vnode_cache.h
README.md

What is F2FS?

F2FS is the most commonly used log-structured file system in Linux. It supports flash-friendly features such as adaptive logging, multi-head logging, fsync acceleration, and node address translation. For more information see: https://www.usenix.org/conference/fast15/technical-sessions/presentation/lee

Major Release

1st release (Apr-06-2021)

  • Features: mkfs, mount/umount, read, write, rmdir, mkdir, rename, fsync, lseek, link, unlink
  • Remarks
  • Fuchsia base code ; Thu Mar 11 08:53:24 2021 Prashanth Swaminathan,76a08ad1474 [speak] Migrate to new component templates
  • There is no cache. Every request is handled as a synchronous operation.
  • fsync() triggers checkpointing
  • lock granularity: file operation
  • LFS is used for block allocation by default, and IPU is forced when the number of free sections is below 50%.
  • no background/foreground gc
  • disable the roll-forward recovery
  • 6 active logs
  • disable the ext-identify feature
  • block allocation: LFS, IPU
  • fsck do nothing, but it returns true
  • no discard

2nd release (May-28-2021)

  • Features: truncate, ssr, fsync, recovery
  • Remarks
  • Fuchsia base code ; Thu May 20 07:25:45 2021 Yilong Li, 02c0dfff0fdb
  • support the roll-forward recovery and file level fsync()
  • block allocation: LFS, IPU, SSR
  • truncate

3rd release (June-25-2021)

  • Features: fsck, mount option, mkfs option
  • all fs-tests and large-fs-tests passed
  • Remarks
  • fsck (base: 7f35b548d4b)
  • support the ext-identify feature
  • support discard

4th release (July-30-2021)

  • Features: vnode cache, inline dentry
  • unit test coverage

5th release (August-27-2021)

  • Features: dentry cache
  • Landing
  • Linux compatibility test coverage

6th release (September-30-2021 ~)

  • Features: gc, node cache, pager support, mmap, wb, readahead, ... (as new fuchsia features coming)
  • stress test coverage
  • performance test

How to build

$ fx set core.x64 --with-base //bundles:tools --with-base //bundles:tests --with-base third_party/f2fs
(see third_party/f2fs/test_files/README.md for test)