From: Pavel Begunkov <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH 01/13] io-wq: embed wqe ptr array into struct io_wq
Date: Mon, 14 Jun 2021 02:36:12 +0100 [thread overview]
Message-ID: <1482c6a001923bbed662dc38a8a580fb08b1ed8c.1623634181.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
io-wq keeps an array of pointers to struct io_wqe, allocate this array
as a part of struct io-wq, it's easier to code and saves an extra
indirection for nearly each io-wq call.
Signed-off-by: Pavel Begunkov <[email protected]>
---
fs/io-wq.c | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/fs/io-wq.c b/fs/io-wq.c
index b3e8624a37d0..1ca98fc7d52b 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -102,7 +102,6 @@ struct io_wqe {
* Per io_wq state
*/
struct io_wq {
- struct io_wqe **wqes;
unsigned long state;
free_work_fn *free_work;
@@ -118,6 +117,8 @@ struct io_wq {
struct hlist_node cpuhp_node;
struct task_struct *task;
+
+ struct io_wqe *wqes[];
};
static enum cpuhp_state io_wq_online;
@@ -907,17 +908,12 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data)
if (WARN_ON_ONCE(!data->free_work || !data->do_work))
return ERR_PTR(-EINVAL);
- wq = kzalloc(sizeof(*wq), GFP_KERNEL);
+ wq = kzalloc(struct_size(wq, wqes, nr_node_ids), GFP_KERNEL);
if (!wq)
return ERR_PTR(-ENOMEM);
-
- wq->wqes = kcalloc(nr_node_ids, sizeof(struct io_wqe *), GFP_KERNEL);
- if (!wq->wqes)
- goto err_wq;
-
ret = cpuhp_state_add_instance_nocalls(io_wq_online, &wq->cpuhp_node);
if (ret)
- goto err_wqes;
+ goto err_wq;
refcount_inc(&data->hash->refs);
wq->hash = data->hash;
@@ -962,8 +958,6 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data)
cpuhp_state_remove_instance_nocalls(io_wq_online, &wq->cpuhp_node);
for_each_node(node)
kfree(wq->wqes[node]);
-err_wqes:
- kfree(wq->wqes);
err_wq:
kfree(wq);
return ERR_PTR(ret);
@@ -1036,7 +1030,6 @@ static void io_wq_destroy(struct io_wq *wq)
kfree(wqe);
}
io_wq_put_hash(wq->hash);
- kfree(wq->wqes);
kfree(wq);
}
--
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 ` Pavel Begunkov [this message]
2021-06-14 1:36 ` [PATCH 02/13] io-wq: remove unused io-wq refcounting Pavel Begunkov
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 01/13] io-wq: embed wqe ptr array into struct io_wq Pavel Begunkov
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