From: Pavel Begunkov <asml.silence@gmail.com>
To: Jens Axboe <axboe@kernel.dk>, io-uring@vger.kernel.org
Subject: [PATCH 02/13] io-wq: remove unused io-wq refcounting
Date: Mon, 14 Jun 2021 02:36:13 +0100 [thread overview]
Message-ID: <401007393528ea7c102360e69a29b64498e15db2.1623634181.git.asml.silence@gmail.com> (raw)
In-Reply-To: <cover.1623634181.git.asml.silence@gmail.com>
iowq->refs is initialised to one and killed on exit, so it's not used
and we can kill it.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
fs/io-wq.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/fs/io-wq.c b/fs/io-wq.c
index 1ca98fc7d52b..f058ea0bcae8 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -109,8 +109,6 @@ struct io_wq {
struct io_wq_hash *hash;
- refcount_t refs;
-
atomic_t worker_refs;
struct completion worker_done;
@@ -949,7 +947,6 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data)
}
wq->task = get_task_struct(data->task);
- refcount_set(&wq->refs, 1);
atomic_set(&wq->worker_refs, 1);
init_completion(&wq->worker_done);
return wq;
@@ -1038,8 +1035,7 @@ void io_wq_put_and_exit(struct io_wq *wq)
WARN_ON_ONCE(!test_bit(IO_WQ_BIT_EXIT, &wq->state));
io_wq_exit_workers(wq);
- if (refcount_dec_and_test(&wq->refs))
- io_wq_destroy(wq);
+ io_wq_destroy(wq);
}
static bool io_wq_worker_affinity(struct io_worker *worker, void *data)
--
2.31.1
next prev parent reply other threads:[~2021-06-14 1:36 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-14 1:36 [PATCH v2 for-next 00/13] resend of for-next cleanups Pavel Begunkov
2021-06-14 1:36 ` [PATCH 01/13] io-wq: embed wqe ptr array into struct io_wq Pavel Begunkov
2021-06-14 1:36 ` Pavel Begunkov [this message]
2021-06-14 1:36 ` [PATCH 03/13] io_uring: refactor io_iopoll_req_issued Pavel Begunkov
2021-06-14 1:36 ` [PATCH 04/13] io_uring: rename function *task_file Pavel Begunkov
2021-06-14 1:36 ` [PATCH 05/13] io-wq: don't repeat IO_WQ_BIT_EXIT check by worker Pavel Begunkov
2021-06-14 1:36 ` [PATCH 06/13] io-wq: simplify worker exiting Pavel Begunkov
2021-06-14 1:36 ` [PATCH 07/13] io_uring: hide rsrc tag copy into generic helpers Pavel Begunkov
2021-06-14 1:36 ` [PATCH 08/13] io_uring: remove rsrc put work irq save/restore Pavel Begunkov
2021-06-14 1:36 ` [PATCH 09/13] io_uring: add helpers for 2 level table alloc Pavel Begunkov
2021-06-14 1:36 ` [PATCH 10/13] io_uring: don't vmalloc rsrc tags Pavel Begunkov
2021-06-14 1:36 ` [PATCH 11/13] io_uring: cache task struct refs Pavel Begunkov
2021-06-14 1:36 ` [PATCH 12/13] io_uring: unify SQPOLL and user task cancellations Pavel Begunkov
2021-06-14 1:36 ` [PATCH 13/13] io_uring: inline io_iter_do_read() Pavel Begunkov
2021-06-14 14:25 ` [PATCH v2 for-next 00/13] resend of for-next cleanups Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2021-05-24 23:50 [PATCH for-next 00/13] 5.14 batch 2 Pavel Begunkov
2021-05-24 23:51 ` [PATCH 02/13] io-wq: remove unused io-wq refcounting Pavel Begunkov
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