[f2fs-dev,v2,0/2] new struct io_work and use it in f2fs fsverity work

Message

Yi Sun July 1, 2024, 7:51 a.m. UTC

Many works will go to submit_bio(). In many cases, the default
io priority of kworker cannot meet the real-time requirements of
the work. Such as f2fs_verify_bio work.

If a high-task-priority process reads the verity-file, it is
possible that the high-task-priority process will be slowly
because the kworker's io priority is too low.

A new work struct containing io priority can solve this problem.

Yi Sun (2):
  workqueue: new struct io_work
  f2fs: set io priority for fsverity work

 fs/f2fs/data.c            | 17 +++++++------
 fs/f2fs/f2fs.h            |  1 +
 fs/f2fs/verity.c          |  5 ++++
 include/linux/workqueue.h | 47 ++++++++++++++++++++++++++++++++++++
 kernel/workqueue.c        | 50 +++++++++++++++++++++++++++++++++++++++
 5 files changed, 113 insertions(+), 7 deletions(-)