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Rust Binder currently uses PollCondVar, but it calls synchronize_rcu() in the destructor, which we would like to avoid. Add a variation of PollCondVar that kfree_rcu() instead. One could avoid the `rcu` field and allocate the rcu_head on drop using a fallback to synchronize_rcu() on ENOMEM. However, I'd prefer to avoid the potential for synchronize_rcu(), and Binder will only use this for a small fraction of processes, so even if it changes which kmalloc bucket it falls into, the extra memory is not a problem. Signed-off-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Boqun Feng <boqun@kernel.org> Link: https://patch.msgid.link/20260707-upgrade-poll-v6-1-4b8fae7bf1d9@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| arc | ||
| atomic | ||
| lock | ||
| arc.rs | ||
| aref.rs | ||
| atomic.rs | ||
| barrier.rs | ||
| completion.rs | ||
| condvar.rs | ||
| lock.rs | ||
| locked_by.rs | ||
| poll.rs | ||
| rcu.rs | ||
| refcount.rs | ||
| set_once.rs | ||