[PATCH v2] async: Let kfree() out of the critical area of the lock

The async_lock is big global lock, and kfree() is not always cheap, it will increase lock contention. it's better let kfree() outside the lock to keep the critical area as short as possible. Signed-off-by: Yunfeng Ye Reviewed-by: Alexander Duyck Reviewed-by: Bart Van Assche --- v1 -> v2: - upd

[PATCH v2] async: Let kfree() out of the critical area of the lock

The async_lock is big global lock, and kfree() is not always cheap, it will increase lock contention. it's better let kfree() outside the lock to keep the critical area as short as possible. Signed-off-by: Yunfeng Ye Reviewed-by: Alexander Duyck Reviewed-by: Bart Van Assche --- v1 -> v2: - upd