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Subject[GIT PULL] f2fs updates for v3.20
Hi Linus,

This patch-set consists of mostly clean-ups and bug fixes. Some of them refactor
old codes too.
Please, pull the following patches.

Thank you,

The following changes since commit b3d574aec7e7aa3ed545d7faf2b2cbaa8db4ce22:

Merge branch 'akpm' (patches from Andrew) (2015-01-09 15:10:59 -0800)

are available in the git repository at:

git:// tags/for-f2fs-3.20

for you to fetch changes up to 1a118ccfd60fc78e64c0a3ab9e85075545839d6e:

f2fs: use spinlock for segmap_lock instead of rwlock (2015-02-11 17:04:51 -0800)

Major changes are to:
o add f2fs_io_tracer and F2FS_IOC_GETVERSION
o fix wrong acl assignment from parent
o fix accessing wrong data blocks
o fix wrong condition check for f2fs_sync_fs
o align start block address for direct_io
o add and refactor the readahead flows of FS metadata
o refactor atomic and volatile write policies

And most of patches are for clean-ups and minor bug fixes.

Changman Lee (1):
f2fs: add block count by in-place-update in stat info

Chao Yu (18):
f2fs: readahead contiguous current summary blocks in checkpoint
f2fs: merge two uchar variable in struct node_info to reduce memory cost
f2fs: use ra_meta_pages to simplify readahead code in restore_node_summary
f2fs: cleanup trace event of f2fs_submit_page_{m,}bio with DECLARE_EVENT_CLASS
f2fs: cleanup parameters for trace_f2fs_submit_{read_,write_,page_,page_m}bio with fio
f2fs: reuse inode_entry_slab in gc procedure for using slab more effectively
f2fs: get rid of kzalloc in __recover_inline_status
f2fs: fix wrong memory footprint statistics in debugfs
f2fs: fix to release count of meta page in ->invalidatepage
f2fs: add F2FS_IOC_GETVERSION support
f2fs: use f2fs_radix_tree_insert to clean codes
f2fs: make truncate_inline_date static
f2fs: clean up {in,de}create_sleep_time
f2fs: merge flags in struct f2fs_sb_info
f2fs: merge {invalidate,release}page for meta/node/data pages
f2fs: fix to use highmem for pages of newly created directory
f2fs: avoid data offset overflow when lseeking huge file
f2fs: use spinlock for segmap_lock instead of rwlock

Jaegeuk Kim (43):
f2fs: remove checking dirty_exceed
f2fs: fix wrong condition check to trigger f2fs_sync_fs
f2fs: don't need to call lock_op and lock_page for abort
f2fs: change atomic and volatile write policies
f2fs: fix small discards not to issue redundantly
f2fs: remove unnecessary call to invalidate inmemory pages
f2fs: use missing the use of f2fs_kunmap_page
f2fs: use f2fs_io_info to clean up messy parameters during IO path
f2fs: add f2fs_io_tracer support
f2fs: add key functions for f2fs_io_tracer
f2fs: activate f2fs_trace_pid
f2fs: activate f2fs_trace_ios
f2fs: avoid double lock for cp_rwsem
f2fs: fix missing cold bit during recovery
f2fs: clean up to remove parameter
f2fs: avoid potential unnecessary codes
f2fs: remove uncovered code path
f2fs: align direct_io'ed data to section
f2fs: fix wrong unlock_page call
f2fs: free radix_tree_nodes used by nat_set entries
f2fs: add nat/sit entries into status
f2fs: add spin_lock to cover radix operations in IO tracer
f2fs: add f2fs_destroy_trace_ios to free radix tree
f2fs: avoid infinite loop on cp_error
f2fs: update memory footprint information
f2fs: trigger correct checkpoint during umount
f2fs: do checkpoint when umount flag is not set
f2fs: leave comment for code readability
f2fs: fix not to drop mount options when retrying fill_super
f2fs: support norecovery mount option
f2fs: avoid write_checkpoint if f2fs is mounted readonly
f2fs: split UMOUNT and FASTBOOT flags
f2fs: should fail mount when trying to recover data on read-only dev
f2fs: keep PagePrivate during releasepage
f2fs: show the number of writeback pages in stat
f2fs: introduce a batched trim
f2fs: check node page contents all the time
f2fs: call set_buffer_new for get_block
f2fs: introduce macros to convert bytes and blocks in f2fs
f2fs: allocate data blocks in advance for f2fs_direct_IO
f2fs: fix sparse warnings
f2fs: avoid variable length array
f2fs: fix accessing wrong indexed data blocks

Kinglong Mee (1):
f2fs: fix a bug of inheriting default ACL from parent

kbuild test robot (1):
f2fs: pids_lock can be static

Documentation/ABI/testing/sysfs-fs-f2fs | 6 +
Documentation/filesystems/f2fs.txt | 6 +
fs/f2fs/Kconfig | 10 ++
fs/f2fs/Makefile | 1 +
fs/f2fs/acl.c | 6 +-
fs/f2fs/checkpoint.c | 95 ++++++++------
fs/f2fs/data.c | 218 +++++++++++++++++++++-----------
fs/f2fs/debug.c | 59 ++++++---
fs/f2fs/dir.c | 3 +-
fs/f2fs/f2fs.h | 120 +++++++++++++-----
fs/f2fs/file.c | 100 +++++++++++++--
fs/f2fs/gc.c | 38 ++----
fs/f2fs/gc.h | 33 ++---
fs/f2fs/inline.c | 32 ++---
fs/f2fs/inode.c | 37 +++---
fs/f2fs/namei.c | 2 +-
fs/f2fs/node.c | 154 ++++++++++------------
fs/f2fs/node.h | 45 +++++--
fs/f2fs/recovery.c | 11 +-
fs/f2fs/segment.c | 194 ++++++++++++++++------------
fs/f2fs/segment.h | 29 +++--
fs/f2fs/super.c | 75 ++++++++---
fs/f2fs/trace.c | 159 +++++++++++++++++++++++
fs/f2fs/trace.h | 46 +++++++
include/linux/f2fs_fs.h | 7 +
include/trace/events/f2fs.h | 148 ++++++++++------------
26 files changed, 1075 insertions(+), 559 deletions(-)
create mode 100644 fs/f2fs/trace.c
create mode 100644 fs/f2fs/trace.h

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