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| author |  Dylan Yudaken <dylany@fb.com>
| 2022-06-22 06:40:25 -0700 |
|---|---|---|
| committer |  Jens Axboe <axboe@kernel.dk>
| 2022-07-24 18:39:15 -0600 |
| commit | 3a0c037b0e16e38cf5d36d2ebc259e0ae644aaf4 (patch) | |
| tree | 732709a212417c60ee42eabc36859d59538f2ac3 /include | |
| parent | io_uring: introduce llist helpers (diff) | |
| download | linux-3a0c037b0e16e38cf5d36d2ebc259e0ae644aaf4.tar.gz linux-3a0c037b0e16e38cf5d36d2ebc259e0ae644aaf4.tar.bz2 linux-3a0c037b0e16e38cf5d36d2ebc259e0ae644aaf4.zip | |
io_uring: batch task_work
Batching task work up is an important performance optimisation, as
task_work_add is expensive.
In order to keep the semantics replace the task_list with a fake node
while processing the old list, and then do a cmpxchg at the end to see if
there is more work.
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220622134028.2013417-6-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions