[GIT PULL] f2fs updates for v4.5

From: Jaegeuk Kim
Date: Wed Jan 13 2016 - 17:24:03 EST

Hi Linus,

Could you please pull this?


The following changes since commit fb39cbda147082a2e7dc4e2b5f3298448295e3c4:

Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm (2015-12-04 11:30:45 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git tags/for-f2fs-4.5

for you to fetch changes up to 447135a86659c646017b8e707c1243c186bf2dff:

f2fs: should unset atomic flag after successful commit (2016-01-11 15:56:44 -0800)

Regarding to the new features, this patch series adds two ioctls to control
cached data and fragmented files.
And, the other most parts are trying to fix missing error cases and bugs that
we have not covered so far. The specific changes are summarized below.

= Enhancement =
- support an ioctl to execute online file defragmentation
- support an ioctl to flush cached data
- speed up shrinkg extent_cache entries
- handle broken superblock
- refector dirty inode management infra
- revisit f2fs_map_blocks to handle more cases
- reduce global lock coverage
- add detecting user's idle time

= Major bug fix =
- fix data race condition on cached nat entries
- fix error cases of volatile and atomic writes

Chao Yu (40):
f2fs: report error of f2fs_create_root_stats
f2fs: commit atomic written page in LFS mode
f2fs: support file defragment
f2fs: fix memory leak of kobject in error path of fill_super
f2fs: fix to enable missing ioctl interfaces in ->compat_ioctl
f2fs: fix to remove directory inode from dirty list
f2fs: clear page uptodate when dropping cache for atomic write
f2fs: fix to report error in f2fs_readdir
f2fs: clean up error path in f2fs_readdir
f2fs: clean up code with __has_cursum_space
f2fs: clean up argument of recover_data
f2fs: kill f2fs_drop_largest_extent
f2fs: use sbi->blocks_per_seg to avoid unnecessary calculation
f2fs: fix to convert inline inode in ->setattr
f2fs: clean up node page updating flow
f2fs: do more integrity verification for superblock
f2fs: rename {add,remove,release}_dirty_inode to {add,remove,release}_ino_entry
f2fs: introduce dirty list node in inode info
f2fs: introduce __remove_dirty_inode
f2fs: don't grab super block buffer header all the time
f2fs: introduce __f2fs_commit_super
f2fs: record dirty status of regular/symlink inode
f2fs: introduce new option for controlling data flush
f2fs: stat dirty regular/symlink inodes
f2fs: support data flush in background
f2fs: add a tracepoint for sync_dirty_inodes
f2fs: reduce covered region of sbi->cp_rwsem in f2fs_map_blocks
f2fs: report error of do_checkpoint
f2fs: don't convert inline inode when inline_data option is disable
f2fs: add missing f2fs_balance_fs in __recover_dot_dentries
f2fs: let user being aware of IO error
f2fs: clean up f2fs_ioc_write_checkpoint
f2fs: fix to skip recovering dot dentries in a readonly fs
f2fs crypto: check CONFIG_F2FS_FS_XATTR for encrypted symlink
f2fs: introduce max_file_blocks in sbi
f2fs: check node id earily when readaheading node page
f2fs: introduce __get_node_page to reuse common code
f2fs: recognize encrypted data in f2fs_fiemap
f2fs: use atomic type for node count in extent tree
f2fs: skip releasing nodes in chindless extent tree

Fan Li (7):
f2fs: optimize __find_rev_next_bit
f2fs: write only the pages in range during defragment
f2fs: fix to update variable correctly when skip a unmapped block
f2fs: fix to reset variable correctlly
f2fs: optimize the flow of f2fs_map_blocks
f2fs: fix bugs and simplify codes of f2fs_fiemap
f2fs: read isize while holding i_mutex in fiemap

Jaegeuk Kim (37):
f2fs: avoid deadlock in f2fs_shrink_extent_tree
f2fs: do not recover from previous remained wrong dnodes
f2fs: enhance the bit operation for SSR
f2fs: refactor f2fs_commit_super
f2fs: use lock_buffer when changing superblock
f2fs: add symbol to avoid any confusion with tools
f2fs: relocate tracepoint of write_checkpoint
f2fs: use atomic variable for total_extent_tree
f2fs: speed up shrinking extent tree entries
f2fs: check inline_data flag at converting time
f2fs: avoid unnecessary f2fs_gc for dir operations
f2fs: record node block allocation in dnode_of_data
f2fs: call f2fs_balance_fs only when node was changed
f2fs: introduce prepare_write_begin to clean up
f2fs: return early when trying to read null nid
f2fs: avoid f2fs_lock_op in f2fs_write_begin
f2fs: declare static function
f2fs: early check broken symlink length in the encrypted case
f2fs: use i_size_read to get i_size
f2fs: load largest extent all the time
f2fs: fix f2fs_ioc_abort_volatile_write
f2fs: remove f2fs_bug_on in terms of max_depth
f2fs: write pending bios when cp_error is set
f2fs: use IPU for fdatasync
f2fs: monitor zombie_tree count
f2fs: introduce zombie list for fast shrinking extent trees
f2fs: cover more area with nat_tree_lock
Revert "f2fs: check the node block address of newly allocated nid"
f2fs: check the page status filled from disk
f2fs: avoid unnecessary f2fs_balance_fs calls
f2fs: remove redundant calls
f2fs: clean up f2fs_balance_fs
f2fs: introduce time and interval facility
f2fs: detect idle time depending on user behavior
f2fs: monitor the number of background checkpoint
f2fs: fix wrong memory condition check
f2fs: should unset atomic flag after successful commit

Masanari Iida (1):
Doc: f2fs: Fix typos in Documentation/filesystems/f2fs.txt

Yunlei He (2):
f2fs: backup raw_super in sbi
f2fs: add a max block check for get_data_block_bmap

Documentation/ABI/testing/sysfs-fs-f2fs | 6 +
Documentation/filesystems/f2fs.txt | 10 +-
fs/f2fs/checkpoint.c | 177 ++++++++-------
fs/f2fs/data.c | 377 ++++++++++++++++++--------------
fs/f2fs/debug.c | 29 ++-
fs/f2fs/dir.c | 38 ++--
fs/f2fs/extent_cache.c | 122 ++++++-----
fs/f2fs/f2fs.h | 142 ++++++++----
fs/f2fs/file.c | 344 +++++++++++++++++++++++------
fs/f2fs/gc.c | 9 +-
fs/f2fs/gc.h | 8 -
fs/f2fs/inline.c | 9 +-
fs/f2fs/inode.c | 28 +--
fs/f2fs/namei.c | 59 +++--
fs/f2fs/node.c | 170 +++++++-------
fs/f2fs/node.h | 6 +-
fs/f2fs/recovery.c | 40 +++-
fs/f2fs/segment.c | 122 +++++------
fs/f2fs/shrinker.c | 3 +-
fs/f2fs/super.c | 253 +++++++++++++++------
fs/f2fs/xattr.c | 3 +-
include/linux/f2fs_fs.h | 3 +-
include/trace/events/f2fs.h | 38 ++++
23 files changed, 1266 insertions(+), 730 deletions(-)