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Subject[GIT PULL] f2fs update for 5.10-rc1
Hi Linus,

Could you please consider this pull request?


The following changes since commit 581cb3a26baf846ee9636214afaa5333919875b1:

Merge tag 'f2fs-for-5.9-rc5' of git:// (2020-09-10 13:12:46 -0700)

are available in the Git repository at:

git:// tags/f2fs-for-5.10-rc1

for you to fetch changes up to 788e96d1d39949fc91457a816f4bda0d374c257b:

f2fs: code cleanup by removing unnecessary check (2020-10-14 13:23:41 -0700)


In this round, we've added new features such as zone capacity for ZNS and
a new GC policy, ATGC, along with in-memory segment management. In addition,
we could improve the decompression speed significantly by changing virtual
mapping method. Even though we've fixed lots of small bugs in compression
support, I feel that it becomes more stable so that I could give it a try in

- suport zone capacity in NVMe Zoned Namespace devices
- introduce in-memory current segment management
- add standart casefolding support
- support age threshold based garbage collection
- improve decompression speed by changing virtual mapping method

Bug fix:
- fix condition checks in some ioctl() such as compression, move_range, etc
- fix 32/64bits support in data structures
- fix memory allocation in zstd decompress
- add some boundary checks to avoid kernel panic on corrupted image
- fix disallowing compression for non-empty file
- fix slab leakage of compressed block writes

In addition, it includes code refactoring for better readability and minor
bug fixes for compression and zoned device support.

Aravind Ramesh (1):
f2fs: support zone capacity less than zone size

Chao Yu (24):
f2fs: compress: remove unneeded code
f2fs: introduce inmem curseg
f2fs: record average update time of segment
f2fs: inherit mtime of original block during GC
f2fs: support 64-bits key in f2fs rb-tree node entry
f2fs: fix compile warning
f2fs: compress: use more readable atomic_t type for {cic,dic}.ref
f2fs: support age threshold based garbage collection
f2fs: allocate proper size memory for zstd decompress
f2fs: ignore compress mount option on image w/o compression feature
f2fs: trace: fix typo
f2fs: clean up kvfree
f2fs: do sanity check on zoned block device path
f2fs: relocate blkzoned feature check
f2fs: remove unneeded parameter in find_in_block()
f2fs: fix uninit-value in f2fs_lookup
f2fs: fix to check segment boundary during SIT page readahead
f2fs: fix to do sanity check on segment/section count
f2fs: compress: introduce page array slab cache
f2fs: compress: introduce cic/dic slab cache
f2fs: compress: fix to disallow enabling compress on non-empty file
f2fs: fix to set SBI_NEED_FSCK flag for inconsistent inode
f2fs: don't issue flush in f2fs_flush_device_cache() for nobarrier case
f2fs: introduce check_swap_activate_fast()

Chengguang Xu (1):
f2fs: code cleanup by removing unnecessary check

Daeho Jeong (6):
f2fs: add block address limit check to compressed file
f2fs: change compr_blocks of superblock info to 64bit
f2fs: change i_compr_blocks of inode to atomic value
f2fs: change return value of f2fs_disable_compressed_file to bool
f2fs: change virtual mapping way for compression pages
f2fs: fix writecount false positive in releasing compress blocks

Dan Robertson (1):
f2fs: check position in move range ioctl

Daniel Rosenberg (3):
unicode: Add utf8_casefold_hash
fs: Add standard casefolding support
f2fs: Use generic casefolding support

Eric Biggers (1):
f2fs: reject CASEFOLD inode flag without casefold feature

Jack Qiu (1):
f2fs: correct statistic of APP_DIRECT_IO/APP_DIRECT_READ_IO

Jaegeuk Kim (4):
f2fs: point man pages for some f2fs utils
f2fs: fix slab leak of rpages pointer
f2fs: fix memory alignment to support 32bit
f2fs: handle errors of f2fs_get_meta_page_nofail

Jamie Iles (1):
f2fs: wait for sysfs kobject removal before freeing f2fs_sb_info

Matthew Wilcox (Oracle) (1):
f2fs: Simplify SEEK_DATA implementation

Randy Dunlap (1):
f2fs: Documentation edits/fixes

Wang Xiaojun (3):
f2fs: remove unused check on version_bitmap
f2fs: remove duplicated code in sanity_check_area_boundary
f2fs: fix wrong total_sections check and fsmeta check

Xiaojun Wang (2):
f2fs: remove duplicated type casting
f2fs: change return value of reserved_segments to unsigned int

Zhang Qilong (1):
f2fs: add trace exit in exception path

Documentation/ABI/testing/sysfs-fs-f2fs | 3 +-
Documentation/filesystems/f2fs.rst | 82 ++++-
fs/f2fs/acl.c | 6 +-
fs/f2fs/checkpoint.c | 17 +-
fs/f2fs/compress.c | 242 +++++++++++----
fs/f2fs/data.c | 119 +++++++-
fs/f2fs/debug.c | 18 +-
fs/f2fs/dir.c | 109 ++-----
fs/f2fs/extent_cache.c | 37 ++-
fs/f2fs/f2fs.h | 118 +++++---
fs/f2fs/file.c | 88 +++---
fs/f2fs/gc.c | 413 +++++++++++++++++++++++--
fs/f2fs/gc.h | 69 ++++-
fs/f2fs/inline.c | 4 +-
fs/f2fs/inode.c | 21 +-
fs/f2fs/namei.c | 2 +-
fs/f2fs/node.c | 7 +-
fs/f2fs/segment.c | 522 ++++++++++++++++++++++++++------
fs/f2fs/segment.h | 71 +++--
fs/f2fs/super.c | 168 +++++++---
fs/f2fs/sysfs.c | 22 +-
fs/f2fs/xattr.c | 8 +-
fs/libfs.c | 87 ++++++
fs/unicode/utf8-core.c | 23 +-
include/linux/f2fs_fs.h | 3 -
include/linux/fs.h | 16 +
include/linux/unicode.h | 3 +
include/trace/events/f2fs.h | 10 +-
28 files changed, 1795 insertions(+), 493 deletions(-)

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