linux-stable.git/fs/f2fs, branch v4.7

switch xattr_handler->set() to passing dentry and inode separately

2016-05-27T19:39:43+00:00

preparation for similar switch in ->setxattr() (see the next commit for
rationale).

Signed-off-by: Al Viro

Merge tag 'for-f2fs-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

2016-05-22T01:25:28+00:00

Pull f2fs updates from Jaegeuk Kim:
 "In this round, as Ted pointed out, fscrypto allows one more key prefix
  given by filesystem to resolve backward compatibility issues.  Other
  than that, we've fixed several error handling cases by introducing
  a fault injection facility.  We've also achieved performance
  improvement in some workloads as well as a bunch of bug fixes.

  Summary:

  Enhancements:
   - fs-specific prefix for fscrypto
   - fault injection facility
   - expose validity bitmaps for user to be aware of fragmentation
   - fallocate/rm/preallocation speed up
   - use percpu counters

  Bug fixes:
   - some inline_dentry/inline_data bugs
   - error handling for atomic/volatile/orphan inodes
   - recover broken superblock"

* tag 'for-f2fs-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (73 commits)
  f2fs: fix to update dirty page count correctly
  f2fs: flush pending bios right away when error occurs
  f2fs: avoid ENOSPC fault in the recovery process
  f2fs: make exit_f2fs_fs more clear
  f2fs: use percpu_counter for total_valid_inode_count
  f2fs: use percpu_counter for alloc_valid_block_count
  f2fs: use percpu_counter for # of dirty pages in inode
  f2fs: use percpu_counter for page counters
  f2fs: use bio count instead of F2FS_WRITEBACK page count
  f2fs: manipulate dirty file inodes when DATA_FLUSH is set
  f2fs: add fault injection to sysfs
  f2fs: no need inc dirty pages under inode lock
  f2fs: fix incorrect error path handling in f2fs_move_rehashed_dirents
  f2fs: fix i_current_depth during inline dentry conversion
  f2fs: correct return value type of f2fs_fill_super
  f2fs: fix deadlock when flush inline data
  f2fs: avoid f2fs_bug_on during recovery
  f2fs: show # of orphan inodes
  f2fs: support in batch fzero in dnode page
  f2fs: support in batch multi blocks preallocation
  ...

lib/uuid.c: move generate_random_uuid() to uuid.c

2016-05-21T00:58:30+00:00

Let's gather the UUID related functions under one hood.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Matt Fleming 
Cc: Dmitry Kasatkin 
Cc: Mimi Zohar 
Cc: Rasmus Villemoes 
Cc: Arnd Bergmann 
Cc: "Theodore Ts'o" 
Cc: Al Viro 
Cc: Jens Axboe 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

f2fs: fix to update dirty page count correctly

2016-05-20T21:55:41+00:00

Once we failed to merge inline data into inode page during flushing inline
inode, we will skip invoking inode_dec_dirty_pages, which makes dirty page
count incorrect, result in panic in ->evict_inode, Fix it.

------------[ cut here ]------------
kernel BUG at /home/yuchao/git/devf2fs/inode.c:336!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 3 PID: 10004 Comm: umount Tainted: G           O    4.6.0-rc5+ #17
Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
task: f0c33000 ti: c5212000 task.ti: c5212000
EIP: 0060:[] EFLAGS: 00010202 CPU: 3
EIP is at f2fs_evict_inode+0x85/0x490 [f2fs]
EAX: 00000001 EBX: c4529ea0 ECX: 00000001 EDX: 00000000
ESI: c0131000 EDI: f89dd0a0 EBP: c5213e9c ESP: c5213e78
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
CR0: 80050033 CR2: b75878c0 CR3: 1a36a700 CR4: 000406f0
Stack:
 c4529ea0 c4529ef4 c5213e8c c176d45c c4529ef4 00000000 c4529ea0 c4529fac
 f89dd0a0 c5213eb0 c1204a68 c5213ed8 c452a2b4 c6680930 c5213ec0 c1204b64
 c6680d44 c6680620 c5213eec c120588d ee84b000 ee84b5c0 c5214000 ee84b5e0
Call Trace:
 [] ? _raw_spin_unlock+0x2c/0x50
 [] evict+0xa8/0x170
 [] dispose_list+0x34/0x50
 [] evict_inodes+0x10d/0x130
 [] generic_shutdown_super+0x41/0xe0
 [] ? unregister_shrinker+0x40/0x50
 [] ? unregister_shrinker+0x40/0x50
 [] kill_block_super+0x22/0x70
 [] kill_f2fs_super+0x1e/0x20 [f2fs]
 [] deactivate_locked_super+0x3d/0x70
 [] deactivate_super+0x43/0x60
 [] cleanup_mnt+0x39/0x80
 [] __cleanup_mnt+0x10/0x20
 [] task_work_run+0x71/0x90
 [] exit_to_usermode_loop+0x72/0x9e
 [] do_fast_syscall_32+0x19c/0x1c0
 [] sysenter_past_esp+0x45/0x74
EIP: [] f2fs_evict_inode+0x85/0x490 [f2fs] SS:ESP 0068:c5213e78
---[ end trace d30536330b7fdc58 ]---

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

f2fs: flush pending bios right away when error occurs

2016-05-20T18:46:15+00:00

Given errors, this patch flushes pending bios as soon as possible.

Signed-off-by: Jaegeuk Kim

f2fs: avoid ENOSPC fault in the recovery process

2016-05-20T18:43:04+00:00

This patch avoids impossible error injection, ENOSPC, during recovery process.

Signed-off-by: Jaegeuk Kim

f2fs: make exit_f2fs_fs more clear

2016-05-18T20:57:31+00:00

init_f2fs_fs does:
    1) f2fs_build_trace_ios
    2) init_inodecache
    3) create_node_manager_caches
    4) create_segment_manager_caches
    5) create_checkpoint_caches
    6) create_extent_cache
    7) kset_create_and_add
    8) kobject_init_and_add
    9) register_shrinker
    10) register_filesystem
    11) f2fs_create_root_stats
    12) proc_mkdir

exit_f2fs_fs should do cleanup in the reverse order
to make the code more clear.

Signed-off-by: Tiezhu Yang 
Signed-off-by: Jaegeuk Kim

f2fs: use percpu_counter for total_valid_inode_count

2016-05-18T20:57:30+00:00

This patch uses percpu_counter to avoid stat_lock.

Signed-off-by: Jaegeuk Kim

f2fs: use percpu_counter for alloc_valid_block_count

2016-05-18T20:57:29+00:00

This patch uses percpu_count for sbi->alloc_valid_block_count.

Signed-off-by: Jaegeuk Kim

f2fs: use percpu_counter for # of dirty pages in inode

2016-05-18T20:57:28+00:00

This patch adds percpu_counter for # of dirty pages in inode.

Signed-off-by: Jaegeuk Kim