[f2fs-dev] [GIT PULL] f2fs update for 5.13-rc1

[Jaegeuk Kim <jaegeuk@kernel.org>]

Hi Linus,

Could you please consider this pull request?

Thanks,

The following changes since commit 344178334b0971a1ad5f36b76d7b739400e46ec6:

  Merge tag 'sound-5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound (2021-03-12 12:01:26 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git tags/f2fs-for-5.13-rc1

for you to fetch changes up to 9557727876674893d35940fddbd03d3b505e7ed8:

  f2fs: drop inplace IO if fs status is abnormal (2021-04-26 09:50:39 -0700)

----------------------------------------------------------------
f2fs-for-5.13-rc1

In this round, we added a new mount option, "checkpoint_merge", which introduces
a kernel thread dealing with the f2fs checkpoints. Once we start to manage the
IO priority along with blk-cgroup, the checkpoint operation can be processed in
a lower priority under the process context. Since the checkpoint holds all the
filesystem operations, we give a higher priority to the checkpoint thread all
the time.

Enhancement:
- introduce gc_merge mount option to introduce a checkpoint thread
- improve to run discard thread efficiently
- allow modular compression algorithms
- expose # of overprivision segments to sysfs
- expose runtime compression stat to sysfs

Bug fix:
- fix OOB memory access by the node id lookup
- avoid touching checkpointed data in the checkpoint-disabled mode
- fix the resizing flow to avoid kernel panic and race conditions
- fix block allocation issues on pinned files
- address some swapfile issues
- fix hugtask problem and kernel panic during atomic write operations
- don't start checkpoint thread in RO

And, we've cleaned up some kernel coding style and build warnings. In addition,
we fixed some minor race conditions and error handling routines.

----------------------------------------------------------------
Chao Yu (25):
      f2fs: fix to allow migrating fully valid segment
      f2fs: fix panic during f2fs_resize_fs()
      f2fs: avoid unused f2fs_show_compress_options()
      f2fs: remove unused FORCE_FG_GC macro
      f2fs: update comments for explicit memory barrier
      f2fs: check discard command number before traversing discard pending list
      f2fs: remove unused file_clear_encrypt()
      f2fs: fix to align to section for fallocate() on pinned file
      f2fs: don't start checkpoint thread in readonly mountpoint
      f2fs: fix to avoid out-of-bounds memory access
      f2fs: fix error path of f2fs_remount()
      f2fs: fix to update last i_size if fallocate partially succeeds
      f2fs: fix to avoid touching checkpointed data in get_victim()
      f2fs: delete empty compress.h
      f2fs: fix to cover __allocate_new_section() with curseg_lock
      f2fs: introduce gc_merge mount option
      f2fs: fix to restrict mount condition on readonly block device
      f2fs: fix to avoid GC/mmap race with f2fs_truncate()
      f2fs: fix to avoid accessing invalid fio in f2fs_allocate_data_block()
      f2fs: document: add description about compressed space handling
      f2fs: avoid duplicated codes for cleanup
      f2fs: avoid using native allocate_segment_by_default()
      f2fs: clean up left deprecated IO trace codes
      f2fs: compress: remove unneed check condition
      f2fs: drop inplace IO if fs status is abnormal

Chengguang Xu (1):
      f2fs: fix to use per-inode maxbytes in f2fs_fiemap

Colin Ian King (1):
      f2fs: fix a redundant call to f2fs_balance_fs if an error occurs

Daeho Jeong (1):
      f2fs: add sysfs nodes to get runtime compression stat

Eric Biggers (1):
      f2fs: fix error handling in f2fs_end_enable_verity()

Geert Uytterhoeven (1):
      f2fs: compress: Allow modular (de)compression algorithms

Gustavo A. R. Silva (1):
      f2fs: Replace one-element array with flexible-array member

Jaegeuk Kim (2):
      f2fs: expose # of overprivision segments
      f2fs: set checkpoint_merge by default

Ruiqi Gong (1):
      f2fs: fix a typo in inode.c

Sahitya Tummala (2):
      f2fs: allow to change discard policy based on cached discard cmds
      f2fs: fix the periodic wakeups of discard thread

Wan Jiabing (1):
      f2fs: remove unnecessary struct declaration

Wang Xiaojun (1):
      f2fs: fix wrong alloc_type in f2fs_do_replace_block

Weichao Guo (1):
      f2fs: do not use AT_SSR mode in FG_GC & high urgent BG_GC

Yi Chen (1):
      f2fs: fix to avoid NULL pointer dereference

Yi Zhuang (2):
      f2fs: Fix a hungtask problem in atomic write
      f2fs: clean up build warnings

huangjianan@oppo.com (3):
      f2fs: remove unnecessary IS_SWAPFILE check
      f2fs: fix last_lblock check in check_swap_activate_fast
      f2fs: check if swapfile is section-alligned

jiahao (1):
      f2fs: fix a spacing coding style

qiulaibin (1):
      f2fs: fix wrong comment of nat_tree_lock

xuyehan (1):
      f2fs: fix a spelling error

 Documentation/ABI/testing/sysfs-fs-f2fs |  31 +++++-
 Documentation/filesystems/f2fs.rst      |  14 +++
 fs/f2fs/Kconfig                         |  16 ++-
 fs/f2fs/acl.c                           |   1 +
 fs/f2fs/checkpoint.c                    |   9 +-
 fs/f2fs/compress.c                      |  15 +--
 fs/f2fs/compress.h                      |   0
 fs/f2fs/data.c                          | 125 ++++++++++++++++++----
 fs/f2fs/debug.c                         |   3 +
 fs/f2fs/dir.c                           |   1 +
 fs/f2fs/f2fs.h                          |  55 ++++++----
 fs/f2fs/file.c                          |  51 +++++----
 fs/f2fs/gc.c                            |  95 +++++++++++++----
 fs/f2fs/gc.h                            |   6 ++
 fs/f2fs/inline.c                        |   3 +-
 fs/f2fs/inode.c                         |   3 +-
 fs/f2fs/namei.c                         |   3 +
 fs/f2fs/node.c                          |  19 +++-
 fs/f2fs/node.h                          |   1 +
 fs/f2fs/recovery.c                      |   3 +-
 fs/f2fs/segment.c                       | 184 +++++++++++++++++++++++---------
 fs/f2fs/segment.h                       |  16 ++-
 fs/f2fs/super.c                         | 102 +++++++++++++-----
 fs/f2fs/sysfs.c                         |  47 ++++++++
 fs/f2fs/verity.c                        |  75 +++++++++----
 fs/f2fs/xattr.c                         |   1 +
 include/linux/f2fs_fs.h                 |   2 +-
 27 files changed, 660 insertions(+), 221 deletions(-)
 delete mode 100644 fs/f2fs/compress.h


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