diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2025-04-16 18:29:11 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2025-05-03 12:02:07 +0200 |
| commit | 9a9bdfdd687395a3dc949d3ae3323494395a93d4 (patch) | |
| tree | a23ba01108ffc8c91611bec67fee7a9b0d3c3aab | |
| parent | b04b8f3032aae6121303bfa324c768faba032242 (diff) | |
futex: Create helper function to initialize a hash slot
Factor out the futex_hash_bucket initialisation into a helpr function.
The helper function will be used in a follow up patch implementing
process private hash buckets.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250416162921.513656-12-bigeasy@linutronix.de
| -rw-r--r-- | kernel/futex/core.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/kernel/futex/core.c b/kernel/futex/core.c index 1443a98dfa7f..afc66780f84f 100644 --- a/kernel/futex/core.c +++ b/kernel/futex/core.c @@ -1160,6 +1160,13 @@ void futex_exit_release(struct task_struct *tsk) futex_cleanup_end(tsk, FUTEX_STATE_DEAD); } +static void futex_hash_bucket_init(struct futex_hash_bucket *fhb) +{ + atomic_set(&fhb->waiters, 0); + plist_head_init(&fhb->chain); + spin_lock_init(&fhb->lock); +} + static int __init futex_init(void) { unsigned long hashsize, i; @@ -1177,11 +1184,8 @@ static int __init futex_init(void) hashsize, hashsize); hashsize = 1UL << futex_shift; - for (i = 0; i < hashsize; i++) { - atomic_set(&futex_queues[i].waiters, 0); - plist_head_init(&futex_queues[i].chain); - spin_lock_init(&futex_queues[i].lock); - } + for (i = 0; i < hashsize; i++) + futex_hash_bucket_init(&futex_queues[i]); futex_hashmask = hashsize - 1; return 0; |