diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2022-08-27 15:00:59 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-03-13 11:34:35 -0400 |
| commit | 1c9e5da7b2125d09ca6f3bcecc60c652146ce01a (patch) | |
| tree | b8e2eaf3a135131b0b6fb33fe10042f62903fdfe | |
| parent | 120becbe8a5d2c8a27e3a1fdd4f5e2bf06bd4c42 (diff) | |
six locks: Delete six_lock_pcpu_free_rcu()
Didn't have any users, and wasn't a good idea to begin with - delete it.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | include/linux/six.h | 1 | ||||
| -rw-r--r-- | kernel/locking/six.c | 28 |
2 files changed, 0 insertions, 29 deletions
diff --git a/include/linux/six.h b/include/linux/six.h index 52e668cb7be9..6cec7ecdd156 100644 --- a/include/linux/six.h +++ b/include/linux/six.h @@ -196,7 +196,6 @@ void six_lock_increment(struct six_lock *, enum six_lock_type); void six_lock_wakeup_all(struct six_lock *); -void six_lock_pcpu_free_rcu(struct six_lock *); void six_lock_pcpu_free(struct six_lock *); void six_lock_pcpu_alloc(struct six_lock *); diff --git a/kernel/locking/six.c b/kernel/locking/six.c index 4350ed408fe9..9ad42b4a9c40 100644 --- a/kernel/locking/six.c +++ b/kernel/locking/six.c @@ -711,34 +711,6 @@ void six_lock_wakeup_all(struct six_lock *lock) } EXPORT_SYMBOL_GPL(six_lock_wakeup_all); -struct free_pcpu_rcu { - struct rcu_head rcu; - void __percpu *p; -}; - -static void free_pcpu_rcu_fn(struct rcu_head *_rcu) -{ - struct free_pcpu_rcu *rcu = - container_of(_rcu, struct free_pcpu_rcu, rcu); - - free_percpu(rcu->p); - kfree(rcu); -} - -void six_lock_pcpu_free_rcu(struct six_lock *lock) -{ - struct free_pcpu_rcu *rcu = kzalloc(sizeof(*rcu), GFP_KERNEL); - - if (!rcu) - return; - - rcu->p = lock->readers; - lock->readers = NULL; - - call_rcu(&rcu->rcu, free_pcpu_rcu_fn); -} -EXPORT_SYMBOL_GPL(six_lock_pcpu_free_rcu); - void six_lock_pcpu_free(struct six_lock *lock) { BUG_ON(lock->readers && pcpu_read_count(lock)); |