linux.git/include/trace/events/f2fs.h, branch v5.9

f2fs: support to trace f2fs_fiemap()

2020-07-08T04:51:46+00:00

to show f2fs_fiemap()'s result as below:

f2fs_fiemap: dev = (251,0), ino = 7, lblock:0, pblock:1625292800, len:2097152, flags:0, ret:0

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: support to trace f2fs_bmap()

2020-07-08T04:51:46+00:00

to show f2fs_bmap()'s result as below:

f2fs_bmap: dev = (251,0), ino = 7, lblock:0, pblock:396800

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

Merge tag 'f2fs-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

2020-06-09T18:28:59+00:00

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've added some knobs to enhance compression feature
  and harden testing environment. In addition, we've fixed several bugs
  reported from Android devices such as long discarding latency, device
  hanging during quota_sync, etc.

  Enhancements:
   - support lzo-rle algorithm
   - add two ioctls to release and reserve blocks for compression
   - support partial truncation/fiemap on compressed file
   - introduce sysfs entries to attach IO flags explicitly
   - add iostat trace point along with read io stat

  Bug fixes:
   - fix long discard latency
   - flush quota data by f2fs_quota_sync correctly
   - fix to recover parent inode number for power-cut recovery
   - fix lz4/zstd output buffer budget
   - parse checkpoint mount option correctly
   - avoid inifinite loop to wait for flushing node/meta pages
   - manage discard space correctly

  And some refactoring and clean up patches were added"

* tag 'f2fs-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (51 commits)
  f2fs: attach IO flags to the missing cases
  f2fs: add node_io_flag for bio flags likewise data_io_flag
  f2fs: remove unused parameter of f2fs_put_rpages_mapping()
  f2fs: handle readonly filesystem in f2fs_ioc_shutdown()
  f2fs: avoid utf8_strncasecmp() with unstable name
  f2fs: don't return vmalloc() memory from f2fs_kmalloc()
  f2fs: fix retry logic in f2fs_write_cache_pages()
  f2fs: fix wrong discard space
  f2fs: compress: don't compress any datas after cp stop
  f2fs: remove unneeded return value of __insert_discard_tree()
  f2fs: fix wrong value of tracepoint parameter
  f2fs: protect new segment allocation in expand_inode_data
  f2fs: code cleanup by removing ifdef macro surrounding
  f2fs: avoid inifinite loop to wait for flushing node pages at cp_error
  f2fs: flush dirty meta pages when flushing them
  f2fs: fix checkpoint=disable:%u%%
  f2fs: compress: fix zstd data corruption
  f2fs: add compressed/gc data read IO stat
  f2fs: fix potential use-after-free issue
  f2fs: compress: don't handle non-compressed data in workqueue
  ...

f2fs: convert from readpages to readahead

2020-06-02T17:59:07+00:00

Use the new readahead operation in f2fs

Signed-off-by: Matthew Wilcox (Oracle) 
Signed-off-by: Andrew Morton 
Reviewed-by: William Kucharski 
Reviewed-by: Eric Biggers 
Reviewed-by: Chao Yu 
Acked-by: Jaegeuk Kim 
Cc: Christoph Hellwig 
Cc: Cong Wang 
Cc: Darrick J. Wong 
Cc: Dave Chinner 
Cc: Gao Xiang 
Cc: John Hubbard 
Cc: Joseph Qi 
Cc: Junxiao Bi 
Cc: Michal Hocko 
Cc: Zi Yan 
Cc: Johannes Thumshirn 
Cc: Miklos Szeredi 
Link: http://lkml.kernel.org/r/20200414150233.24495-23-willy@infradead.org
Signed-off-by: Linus Torvalds

f2fs: add compressed/gc data read IO stat

2020-05-12T03:37:13+00:00

in order to account data read IOs more accurately.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: refactor resize_fs to avoid meta updates in progress

2020-05-12T03:37:13+00:00

Sahitya raised an issue:
- prevent meta updates while checkpoint is in progress

allocate_segment_for_resize() can cause metapage updates if
it requires to change the current node/data segments for resizing.
Stop these meta updates when there is a checkpoint already
in progress to prevent inconsistent CP data.

Signed-off-by: Sahitya Tummala 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: compress: support lzo-rle compress algorithm

2020-05-12T03:36:46+00:00

LZO-RLE extension (run length encoding) was introduced to improve
performance of LZO algorithm in scenario of data contains many zeros,
zram has changed to use this extended algorithm by default, this
patch adds to support this algorithm extension, to enable this
extension, it needs to enable F2FS_FS_LZO and F2FS_FS_LZORLE config,
and specifies "compress_algorithm=lzo-rle" mountoption.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: support read iostat

2020-04-17T16:17:00+00:00

Adds to support accounting read IOs from userspace/kernel.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: add tracepoint for f2fs iostat

2020-04-17T16:16:57+00:00

Added a tracepoint to see iostat of f2fs. Default period of that
is 3 second. This tracepoint can be used to be monitoring
I/O statistics periodically.

Signed-off-by: Daeho Jeong 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: compress: support zstd compress algorithm

2020-04-03T17:21:10+00:00

Add zstd compress algorithm support, use "compress_algorithm=zstd"
mountoption to enable it.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim