linux.git/fs/f2fs/debug.c, branch v4.5

Merge tag 'for-f2fs-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

2016-01-14T05:01:44+00:00

Pull f2fs updates from Jaegeuk Kim:
 "This series adds two ioctls to control cached data and fragmented
  files.  Most of the rest fixes missing error cases and bugs that we
  have not covered so far.  Summary:

  Enhancements:
   - support an ioctl to execute online file defragmentation
   - support an ioctl to flush cached data
   - speed up shrinking of 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 fixes:
   - fix data race condition on cached nat entries
   - fix error cases of volatile and atomic writes"

* tag 'for-f2fs-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (87 commits)
  f2fs: should unset atomic flag after successful commit
  f2fs: fix wrong memory condition check
  f2fs: monitor the number of background checkpoint
  f2fs: detect idle time depending on user behavior
  f2fs: introduce time and interval facility
  f2fs: skip releasing nodes in chindless extent tree
  f2fs: use atomic type for node count in extent tree
  f2fs: recognize encrypted data in f2fs_fiemap
  f2fs: clean up f2fs_balance_fs
  f2fs: remove redundant calls
  f2fs: avoid unnecessary f2fs_balance_fs calls
  f2fs: check the page status filled from disk
  f2fs: introduce __get_node_page to reuse common code
  f2fs: check node id earily when readaheading node page
  f2fs: read isize while holding i_mutex in fiemap
  Revert "f2fs: check the node block address of newly allocated nid"
  f2fs: cover more area with nat_tree_lock
  f2fs: introduce max_file_blocks in sbi
  f2fs crypto: check CONFIG_F2FS_FS_XATTR for encrypted symlink
  f2fs: introduce zombie list for fast shrinking extent trees
  ...

f2fs: monitor the number of background checkpoint

2016-01-11T23:56:42+00:00

This patch adds to show the number of background checkpoint.

Signed-off-by: Jaegeuk Kim

fs: use block_device name vsprintf helper

2016-01-06T18:03:18+00:00

Signed-off-by: Dmitry Monakhov 
Signed-off-by: Al Viro

f2fs: monitor zombie_tree count

2015-12-31T23:33:00+00:00

This patch adds an entry to show the number of zombie extent_tree.

Signed-off-by: Jaegeuk Kim

f2fs: use atomic variable for total_extent_tree

2015-12-22T18:31:41+00:00

It would be better to use atomic variable for total_extent_tree.

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

f2fs: stat dirty regular/symlink inodes

2015-12-17T17:53:19+00:00

Add to stat dirty regular and symlink inode for showing in debugfs.

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

f2fs: introduce dirty list node in inode info

2015-12-15T21:24:19+00:00

Add a new dirt list node member in inode info for linking the inode to
global dirty list in superblock, instead of old implementation which
allocate slab cache memory as an entry to inode.

It avoids memory pressure due to slab cache allocation, and also makes
codes more clean.

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

f2fs: use sbi->blocks_per_seg to avoid unnecessary calculation

2015-12-04T20:07:57+00:00

Use sbi->blocks_per_seg directly to avoid unnecessary calculation when using
1 << sbi->log_blocks_per_seg.

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

f2fs: report error of f2fs_create_root_stats

2015-12-04T19:52:33+00:00

f2fs_create_root_stats can fail due to no memory, report it to user.

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

f2fs: use atomic64_t for extent cache hit stat

2015-10-09T23:20:55+00:00

Our hit stat of extent cache will increase all the time until remount,
and we use atomic_t type for the stat variable, so it may easily incur
overflow when we query extent cache frequently in a long time running
fs.

So to avoid that, this patch uses atomic64_t for hit stat variables.

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