diff options
| author | Jens Axboe <axboe@kernel.dk> | 2023-06-13 15:44:42 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-09-29 02:37:01 -0600 |
| commit | 8af1692616d993c93a080865a7f19506733aa462 (patch) | |
| tree | 10447dfd7099b239d121c70d3019238ba48c8d33 /kernel/futex | |
| parent | 194bb58c6090e39bd7d9b9c888a079213628e1f6 (diff) | |
| download | linux-8af1692616d993c93a080865a7f19506733aa462.tar.gz linux-8af1692616d993c93a080865a7f19506733aa462.tar.bz2 linux-8af1692616d993c93a080865a7f19506733aa462.zip | |
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) <peterz@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'kernel/futex')
| -rw-r--r-- | kernel/futex/futex.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/futex/futex.h b/kernel/futex/futex.h index 33835b81e0c3..76f6c2e0f539 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; |