From: Jens Axboe Date: Tue, 13 Jun 2023 21:44:42 +0000 (-0600) Subject: futex: add wake_data to struct futex_q X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8af1692616d993c93a080865a7f19506733aa462;p=linux.git futex: add wake_data to struct futex_q 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. Acked-by: Peter Zijlstra (Intel) Signed-off-by: Jens Axboe --- diff --git a/kernel/futex/futex.h b/kernel/futex/futex.h index 33835b81e0c39..76f6c2e0f539e 100644 --- a/kernel/futex/futex.h +++ b/kernel/futex/futex.h @@ -148,6 +148,7 @@ 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 @@ -173,6 +174,7 @@ 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;