From: Jens Axboe <[email protected]>
To: [email protected], [email protected]
Cc: [email protected], [email protected], [email protected],
Jens Axboe <[email protected]>
Subject: [PATCH 09/12] futex: add wake_data to struct futex_q
Date: Fri, 28 Jul 2023 10:42:32 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
With handling multiple futex_q for waitv, we cannot easily go from the
futex_q to data related to that request or queue. Add a wake_data
argument that belongs to the wake handler assigned.
Signed-off-by: Jens Axboe <[email protected]>
---
kernel/futex/futex.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/futex/futex.h b/kernel/futex/futex.h
index e04c74a34832..4633c99ea4b6 100644
--- a/kernel/futex/futex.h
+++ b/kernel/futex/futex.h
@@ -146,6 +146,7 @@ typedef void (futex_wake_fn)(struct wake_q_head *wake_q, struct futex_q *q);
* @task: the task waiting on the futex
* @lock_ptr: the hash bucket lock
* @wake: the wake handler for this queue
+ * @wake_data: data associated with the wake handler
* @key: the key the futex is hashed on
* @pi_state: optional priority inheritance state
* @rt_waiter: rt_waiter storage for use with requeue_pi
@@ -171,6 +172,7 @@ struct futex_q {
struct task_struct *task;
spinlock_t *lock_ptr;
futex_wake_fn *wake;
+ void *wake_data;
union futex_key key;
struct futex_pi_state *pi_state;
struct rt_mutex_waiter *rt_waiter;
--
2.40.1
next prev parent reply other threads:[~2023-07-28 16:43 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-28 16:42 [PATCHSET v4] Add io_uring futex/futexv support Jens Axboe
2023-07-28 16:42 ` [PATCH 01/12] futex: Clarify FUTEX2 flags Jens Axboe
2023-07-28 16:42 ` [PATCH 02/12] futex: Extend the " Jens Axboe
2023-07-28 16:42 ` [PATCH 03/12] futex: Flag conversion Jens Axboe
2023-08-09 18:04 ` Gabriel Krisman Bertazi
2023-07-28 16:42 ` [PATCH 04/12] futex: Validate futex value against futex size Jens Axboe
2023-07-28 16:42 ` [PATCH 05/12] futex: move FUTEX2_MASK to futex.h Jens Axboe
2023-07-28 16:42 ` [PATCH 06/12] futex: factor out the futex wake handling Jens Axboe
2023-07-28 16:42 ` [PATCH 07/12] futex: abstract out a __futex_wake_mark() helper Jens Axboe
2023-07-28 16:42 ` [PATCH 08/12] io_uring: add support for futex wake and wait Jens Axboe
2023-07-28 16:42 ` Jens Axboe [this message]
2023-07-28 16:42 ` [PATCH 10/12] futex: make futex_parse_waitv() available as a helper Jens Axboe
2023-07-28 16:42 ` [PATCH 11/12] futex: make the vectored futex operations available Jens Axboe
2023-07-28 16:42 ` [PATCH 12/12] io_uring: add support for vectored futex waits Jens Axboe
2023-07-31 16:06 ` [PATCHSET v4] Add io_uring futex/futexv support Thomas Gleixner
2023-08-06 16:44 ` Jens Axboe
2023-08-07 1:23 ` Thomas Gleixner
2023-08-07 18:23 ` Jens Axboe
2023-08-15 0:12 ` Thomas Gleixner
2023-08-15 0:18 ` Jens Axboe
2023-08-15 0:47 ` Thomas Gleixner
2023-08-15 1:51 ` Jens Axboe
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