diff options
| author | Felix Moessbauer <felix.moessbauer@siemens.com> | 2024-09-10 19:11:57 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-09-11 15:27:56 +0200 |
| commit | 84eacf177faa605853c58e5b1c0d9544b88c16fd (patch) | |
| tree | 22e7a65e8c42bbbd8f28c0d26de9c118e7a11459 /io_uring | |
| parent | io_uring/io-wq: do not allow pinning outside of cpuset (diff) | |
| download | linux-84eacf177faa605853c58e5b1c0d9544b88c16fd.tar.xz linux-84eacf177faa605853c58e5b1c0d9544b88c16fd.zip | |
io_uring/io-wq: inherit cpuset of cgroup in io worker
The io worker threads are userland threads that just never exit to the
userland. By that, they are also assigned to a cgroup (the group of the
creating task).
When creating a new io worker, this worker should inherit the cpuset
of the cgroup.
Fixes: da64d6db3bd3 ("io_uring: One wqe per wq")
Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
Link: https://lore.kernel.org/r/20240910171157.166423-3-felix.moessbauer@siemens.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/io-wq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/io_uring/io-wq.c b/io_uring/io-wq.c index c7055a8895d7..a38f36b68060 100644 --- a/io_uring/io-wq.c +++ b/io_uring/io-wq.c @@ -1168,7 +1168,7 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data) if (!alloc_cpumask_var(&wq->cpu_mask, GFP_KERNEL)) goto err; - cpumask_copy(wq->cpu_mask, cpu_possible_mask); + cpuset_cpus_allowed(data->task, wq->cpu_mask); wq->acct[IO_WQ_ACCT_BOUND].max_workers = bounded; wq->acct[IO_WQ_ACCT_UNBOUND].max_workers = task_rlimit(current, RLIMIT_NPROC); |