From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH for-next v2 07/25] io_uring: inline ->registered_rings
Date: Tue, 14 Jun 2022 15:36:57 +0100 [thread overview]
Message-ID: <6f9e5a5c3bddf92c848664230c9a0ecaf846950e.1655213915.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
There can be only 16 registered rings, no need to allocate an array for
them separately but store it in tctx.
Signed-off-by: Pavel Begunkov <[email protected]>
---
io_uring/io_uring.c | 1 -
io_uring/tctx.c | 9 ---------
io_uring/tctx.h | 3 ++-
3 files changed, 2 insertions(+), 11 deletions(-)
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 3fdb368820c9..dbf0dbc87758 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -2840,7 +2840,6 @@ void __io_uring_free(struct task_struct *tsk)
WARN_ON_ONCE(tctx->io_wq);
WARN_ON_ONCE(tctx->cached_refs);
- kfree(tctx->registered_rings);
percpu_counter_destroy(&tctx->inflight);
kfree(tctx);
tsk->io_uring = NULL;
diff --git a/io_uring/tctx.c b/io_uring/tctx.c
index f3262eef55d4..6adf659687f8 100644
--- a/io_uring/tctx.c
+++ b/io_uring/tctx.c
@@ -55,16 +55,8 @@ __cold int io_uring_alloc_task_context(struct task_struct *task,
if (unlikely(!tctx))
return -ENOMEM;
- tctx->registered_rings = kcalloc(IO_RINGFD_REG_MAX,
- sizeof(struct file *), GFP_KERNEL);
- if (unlikely(!tctx->registered_rings)) {
- kfree(tctx);
- return -ENOMEM;
- }
-
ret = percpu_counter_init(&tctx->inflight, 0, GFP_KERNEL);
if (unlikely(ret)) {
- kfree(tctx->registered_rings);
kfree(tctx);
return ret;
}
@@ -73,7 +65,6 @@ __cold int io_uring_alloc_task_context(struct task_struct *task,
if (IS_ERR(tctx->io_wq)) {
ret = PTR_ERR(tctx->io_wq);
percpu_counter_destroy(&tctx->inflight);
- kfree(tctx->registered_rings);
kfree(tctx);
return ret;
}
diff --git a/io_uring/tctx.h b/io_uring/tctx.h
index f4964e40d07e..7684713e950f 100644
--- a/io_uring/tctx.h
+++ b/io_uring/tctx.h
@@ -20,8 +20,9 @@ struct io_uring_task {
struct io_wq_work_list task_list;
struct io_wq_work_list prio_task_list;
struct callback_head task_work;
- struct file **registered_rings;
bool task_running;
+
+ struct file *registered_rings[IO_RINGFD_REG_MAX];
};
struct io_tctx_node {
--
2.36.1
next prev parent reply other threads:[~2022-06-14 14:37 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-14 14:36 [PATCH for-next v2 00/25] 5.20 cleanups and poll optimisations Pavel Begunkov
2022-06-14 14:36 ` [PATCH for-next v2 01/25] io_uring: make reg buf init consistent Pavel Begunkov
2022-06-14 14:36 ` [PATCH for-next v2 02/25] io_uring: move defer_list to slow data Pavel Begunkov
2022-06-14 14:36 ` [PATCH for-next v2 03/25] io_uring: better caching for ctx timeout fields Pavel Begunkov
2022-06-14 14:36 ` [PATCH for-next v2 04/25] io_uring: refactor ctx slow data placement Pavel Begunkov
2022-06-15 7:58 ` Hao Xu
2022-06-15 10:11 ` Pavel Begunkov
2022-06-15 10:59 ` Hao Xu
2022-06-14 14:36 ` [PATCH for-next v2 05/25] io_uring: move small helpers to headers Pavel Begunkov
2022-06-14 14:36 ` [PATCH for-next v2 06/25] io_uring: explain io_wq_work::cancel_seq placement Pavel Begunkov
2022-06-14 14:36 ` Pavel Begunkov [this message]
2022-06-14 14:36 ` [PATCH for-next v2 08/25] io_uring: don't set REQ_F_COMPLETE_INLINE in tw Pavel Begunkov
2022-06-14 14:36 ` [PATCH for-next v2 09/25] io_uring: never defer-complete multi-apoll Pavel Begunkov
2022-06-15 8:05 ` Hao Xu
2022-06-14 14:37 ` [PATCH for-next v2 10/25] io_uring: kill REQ_F_COMPLETE_INLINE Pavel Begunkov
2022-06-15 8:20 ` Hao Xu
2022-06-15 10:18 ` Pavel Begunkov
2022-06-15 10:19 ` Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 11/25] io_uring: refactor io_req_task_complete() Pavel Begunkov
2022-06-14 17:45 ` Hao Xu
2022-06-14 17:52 ` Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 12/25] io_uring: don't inline io_put_kbuf Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 13/25] io_uring: remove check_cq checking from hot paths Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 14/25] io_uring: poll: remove unnecessary req->ref set Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 15/25] io_uring: switch cancel_hash to use per entry spinlock Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 16/25] io_uring: pass poll_find lock back Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 17/25] io_uring: clean up io_try_cancel Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 18/25] io_uring: limit number hash buckets Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 19/25] io_uring: clean up io_ring_ctx_alloc Pavel Begunkov
2022-06-15 8:46 ` Hao Xu
2022-06-14 14:37 ` [PATCH for-next v2 20/25] io_uring: use state completion infra for poll reqs Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 21/25] io_uring: add IORING_SETUP_SINGLE_ISSUER Pavel Begunkov
2022-06-15 9:34 ` Hao Xu
2022-06-15 10:20 ` Pavel Begunkov
2022-06-15 9:41 ` Hao Xu
2022-06-15 10:26 ` Pavel Begunkov
2022-06-15 11:08 ` Hao Xu
2022-06-14 14:37 ` [PATCH for-next v2 22/25] io_uring: pass hash table into poll_find Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 23/25] io_uring: introduce a struct for hash table Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 24/25] io_uring: propagate locking state to poll cancel Pavel Begunkov
2022-06-14 14:37 ` [PATCH for-next v2 25/25] io_uring: mutex locked poll hashing Pavel Begunkov
2022-06-15 12:53 ` Hao Xu
2022-06-15 13:55 ` Pavel Begunkov
2022-06-15 15:19 ` Hao Xu
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