| commit | f88262e60bb9cb5740891672ce9f405e7f9393e5 | [log] [tgz] |
|---|---|---|
| author | Dylan Yudaken <dylany@fb.com> | Wed Jun 22 06:40:23 2022 -0700 |
| committer | Jens Axboe <axboe@kernel.dk> | Sun Jul 24 18:39:15 2022 -0600 |
| tree | bca01661645c35ef7958fd5b0a5f9438d9b9b477 | |
| parent | c34398a8c018e0d3d2d30b718d03c7290c696f51 [diff] |
io_uring: lockless task list With networking use cases we see contention on the spinlock used to protect the task_list when multiple threads try and add completions at once. Instead we can use a lockless list, and assume that the first caller to add to the list is responsible for kicking off task work. Signed-off-by: Dylan Yudaken <dylany@fb.com> Link: https://lore.kernel.org/r/20220622134028.2013417-4-dylany@fb.com Signed-off-by: Jens Axboe <axboe@kernel.dk>