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From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH for-next v2 24/25] io_uring: propagate locking state to poll cancel
Date: Tue, 14 Jun 2022 15:37:14 +0100	[thread overview]
Message-ID: <ea64457d5d745096c0038f4f29d6b0e8518d0d0b.1655213915.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>

Poll cancellation will be soon need to grab ->uring_lock inside, pass
the locking state, i.e. issue_flags, inside the cancellation functions.

Signed-off-by: Pavel Begunkov <[email protected]>
---
 io_uring/cancel.c  | 7 ++++---
 io_uring/cancel.h  | 3 ++-
 io_uring/poll.c    | 3 ++-
 io_uring/poll.h    | 3 ++-
 io_uring/timeout.c | 3 ++-
 5 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/io_uring/cancel.c b/io_uring/cancel.c
index f28f0a7d1272..f07bfd27c98a 100644
--- a/io_uring/cancel.c
+++ b/io_uring/cancel.c
@@ -78,7 +78,8 @@ static int io_async_cancel_one(struct io_uring_task *tctx,
 	return ret;
 }
 
-int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd)
+int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd,
+		  unsigned issue_flags)
 {
 	struct io_ring_ctx *ctx = req->ctx;
 	int ret;
@@ -93,7 +94,7 @@ int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd)
 	if (!ret)
 		return 0;
 
-	ret = io_poll_cancel(ctx, cd);
+	ret = io_poll_cancel(ctx, cd, issue_flags);
 	if (ret != -ENOENT)
 		return ret;
 
@@ -136,7 +137,7 @@ static int __io_async_cancel(struct io_cancel_data *cd, struct io_kiocb *req,
 	int ret, nr = 0;
 
 	do {
-		ret = io_try_cancel(req, cd);
+		ret = io_try_cancel(req, cd, issue_flags);
 		if (ret == -ENOENT)
 			break;
 		if (!all)
diff --git a/io_uring/cancel.h b/io_uring/cancel.h
index fd4cb1a2595d..8dd259dc383e 100644
--- a/io_uring/cancel.h
+++ b/io_uring/cancel.h
@@ -3,5 +3,6 @@
 int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
 int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags);
 
-int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd);
+int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd,
+		  unsigned int issue_flags);
 void init_hash_table(struct io_hash_table *table, unsigned size);
diff --git a/io_uring/poll.c b/io_uring/poll.c
index 9c7793f5e93b..07157da1c2cb 100644
--- a/io_uring/poll.c
+++ b/io_uring/poll.c
@@ -643,7 +643,8 @@ static int __io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd,
 	return req ? 0 : -ENOENT;
 }
 
-int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd)
+int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd,
+		   unsigned issue_flags)
 {
 	return __io_poll_cancel(ctx, cd, &ctx->cancel_table);
 }
diff --git a/io_uring/poll.h b/io_uring/poll.h
index cc75c1567a84..fa3e19790281 100644
--- a/io_uring/poll.h
+++ b/io_uring/poll.h
@@ -24,7 +24,8 @@ int io_poll_add(struct io_kiocb *req, unsigned int issue_flags);
 int io_poll_remove_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
 int io_poll_remove(struct io_kiocb *req, unsigned int issue_flags);
 
-int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd);
+int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd,
+		   unsigned issue_flags);
 int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags);
 bool io_poll_remove_all(struct io_ring_ctx *ctx, struct task_struct *tsk,
 			bool cancel_all);
diff --git a/io_uring/timeout.c b/io_uring/timeout.c
index 69cca42d6835..526fc8b2e3b6 100644
--- a/io_uring/timeout.c
+++ b/io_uring/timeout.c
@@ -262,6 +262,7 @@ int io_timeout_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd)
 
 static void io_req_task_link_timeout(struct io_kiocb *req, bool *locked)
 {
+	unsigned issue_flags = *locked ? 0 : IO_URING_F_UNLOCKED;
 	struct io_timeout *timeout = io_kiocb_to_cmd(req);
 	struct io_kiocb *prev = timeout->prev;
 	int ret = -ENOENT;
@@ -273,7 +274,7 @@ static void io_req_task_link_timeout(struct io_kiocb *req, bool *locked)
 				.data		= prev->cqe.user_data,
 			};
 
-			ret = io_try_cancel(req, &cd);
+			ret = io_try_cancel(req, &cd, issue_flags);
 		}
 		io_req_set_res(req, ret ?: -ETIME, 0);
 		io_req_complete_post(req);
-- 
2.36.1


  parent reply	other threads:[~2022-06-14 14:38 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 ` [PATCH for-next v2 07/25] io_uring: inline ->registered_rings Pavel Begunkov
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 ` Pavel Begunkov [this message]
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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