Tetsuo Handa wrote:
James Morris wrote:
I'm pretty sure that the singly linked list idea has been rejected a few
times. Just use the existing API.
Too bad...
Well, is there a way to avoid read_lock when reading list?
Currently, TOMOYO Linux avoids read_lock, on the assumption that
(1) First, ptr->next is initialized with NULL.
(2) Later, ptr->next is assigned non-NULL address.
(3) Assigning to ptr->next is done atomically.
Regards.
Is it all of the purpose for the list structure?
If so, you can apply RCU instead to avoid read lock
when scanning the list, like:
rcu_read_lock();
list_for_each_entry(...) {
....
}
rcu_read_unlock();
--
KaiGai Kohei <[email protected]>
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