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SubjectRe: [PATCH v6 3/7] Reimplement RLIMIT_NPROC on top of ucounts
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On 2/15/21 5:41 AM, Alexey Gladkov wrote:
> diff --git a/fs/io-wq.c b/fs/io-wq.c
> index a564f36e260c..5b6940c90c61 100644
> --- a/fs/io-wq.c
> +++ b/fs/io-wq.c
> @@ -1090,10 +1091,7 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data)
> wqe->node = alloc_node;
> wqe->acct[IO_WQ_ACCT_BOUND].max_workers = bounded;
> atomic_set(&wqe->acct[IO_WQ_ACCT_BOUND].nr_running, 0);
> - if (wq->user) {
> - wqe->acct[IO_WQ_ACCT_UNBOUND].max_workers =
> - task_rlimit(current, RLIMIT_NPROC);
> - }
> + wqe->acct[IO_WQ_ACCT_UNBOUND].max_workers = task_rlimit(current, RLIMIT_NPROC);

This doesn't look like an equivalent transformation. But that may be
moot if we merge the io_uring-worker.v3 series, as then you would not
have to touch io-wq at all.

--
Jens Axboe

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