linux-stable.git/include/trace/events/f2fs.h, branch linux-5.4.y

f2fs: reduce expensive checkpoint trigger frequency

2024-11-08T15:20:32+00:00

[ Upstream commit aaf8c0b9ae042494cb4585883b15c1332de77840 ]

We may trigger high frequent checkpoint for below case:
1. mkdir /mnt/dir1; set dir1 encrypted
2. touch /mnt/file1; fsync /mnt/file1
3. mkdir /mnt/dir2; set dir2 encrypted
4. touch /mnt/file2; fsync /mnt/file2
...

Although, newly created dir and file are not related, due to
commit bbf156f7afa7 ("f2fs: fix lost xattrs of directories"), we will
trigger checkpoint whenever fsync() comes after a new encrypted dir
created.

In order to avoid such performance regression issue, let's record an
entry including directory's ino in global cache whenever we update
directory's xattr data, and then triggerring checkpoint() only if
xattr metadata of target file's parent was updated.

This patch updates to cover below no encryption case as well:
1) parent is checkpointed
2) set_xattr(dir) w/ new xnid
3) create(file)
4) fsync(file)

Fixes: bbf156f7afa7 ("f2fs: fix lost xattrs of directories")
Reported-by: wangzijie 
Reported-by: Zhiguo Niu 
Tested-by: Zhiguo Niu 
Reported-by: Yunlei He 
Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim 
Signed-off-by: Sasha Levin

f2fs: Fix f2fs_truncate_partial_nodes ftrace event

2023-04-26T09:24:03+00:00

[ Upstream commit 0b04d4c0542e8573a837b1d81b94209e48723b25 ]

Fix the nid_t field so that its size is correctly reported in the text
format embedded in trace.dat files. As it stands, it is reported as
being of size 4:

        field:nid_t nid[3];     offset:24;      size:4; signed:0;

Instead of 12:

        field:nid_t nid[3];     offset:24;      size:12;        signed:0;

This also fixes the reported offset of subsequent fields so that they
match with the actual struct layout.

Signed-off-by: Douglas Raillard 
Reviewed-by: Mukesh Ojha 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim 
Signed-off-by: Sasha Levin

f2fs: fix up f2fs_lookup tracepoints

2021-11-26T09:47:17+00:00

[ Upstream commit 70a9ac36ffd807ac506ed0b849f3e8ce3c6623f2 ]

Fix up a misuse that the filename pointer isn't always valid in
the ring buffer, and we should copy the content instead.

Fixes: 0c5e36db17f5 ("f2fs: trace f2fs_lookup")
Signed-off-by: Gao Xiang 
Signed-off-by: Jaegeuk Kim 
Signed-off-by: Sasha Levin

Merge tag 'f2fs-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

2019-07-13T00:28:24+00:00

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've introduced native swap file support which can
  exploit DIO, enhanced existing checkpoint=disable feature with
  additional mount option to tune the triggering condition, and allowed
  user to preallocate physical blocks in a pinned file which will be
  useful to avoid f2fs fragmentation in append-only workloads. In
  addition, we've fixed subtle quota corruption issue.

  Enhancements:
   - add swap file support which uses DIO
   - allocate blocks for pinned file
   - allow SSR and mount option to enhance checkpoint=disable
   - enhance IPU IOs
   - add more sanity checks such as memory boundary access

  Bug fixes:
   - quota corruption in very corner case of error-injected SPO case
   - fix root_reserved on remount and some wrong counts
   - add missing fsck flag

  Some patches were also introduced to clean up ambiguous i_flags and
  debugging messages codes"

* tag 'f2fs-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (33 commits)
  f2fs: improve print log in f2fs_sanity_check_ckpt()
  f2fs: avoid out-of-range memory access
  f2fs: fix to avoid long latency during umount
  f2fs: allow all the users to pin a file
  f2fs: support swap file w/ DIO
  f2fs: allocate blocks for pinned file
  f2fs: fix is_idle() check for discard type
  f2fs: add a rw_sem to cover quota flag changes
  f2fs: set SBI_NEED_FSCK for xattr corruption case
  f2fs: use generic EFSBADCRC/EFSCORRUPTED
  f2fs: Use DIV_ROUND_UP() instead of open-coding
  f2fs: print kernel message if filesystem is inconsistent
  f2fs: introduce f2fs_ macros to wrap f2fs_printk()
  f2fs: avoid get_valid_blocks() for cleanup
  f2fs: ioctl for removing a range from F2FS
  f2fs: only set project inherit bit for directory
  f2fs: separate f2fs i_flags from fs_flags and ext4 i_flags
  f2fs: replace ktype default_attrs with default_groups
  f2fs: Add option to limit required GC for checkpoint=disable
  f2fs: Fix accounting for unusable blocks
  ...

f2fs: support swap file w/ DIO

2019-07-03T15:52:54+00:00

Signed-off-by: Jaegeuk Kim

f2fs: use block layer helper for show_bio_op macro

2019-06-20T19:03:52+00:00

Adjust the f2fs tracing code to use newly introduced block layer
function blk_op_str() which converts the REQ_OP_XXX into the string
XXX.

Reviewed-by: Chao Yu 
Signed-off-by: Chaitanya Kulkarni 
Signed-off-by: Jens Axboe

f2fs: add tracepoint for f2fs_filemap_fault()

2019-05-09T04:23:13+00:00

This patch adds tracepoint for f2fs_filemap_fault().

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

f2fs: add tracepoint for f2fs_file_write_iter()

2019-04-16T20:51:32+00:00

This patch adds tracepoint for f2fs_file_write_iter().

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

f2fs: print more parameters in trace_f2fs_map_blocks

2019-03-13T01:59:19+00:00

for better map_blocks trace.

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

f2fs: trace f2fs_ioc_shutdown

2019-03-13T01:59:19+00:00

This patch supports to trace f2fs_ioc_shutdown.

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