Hi Herbert,
Herbert Xu wrote:
> [DM] dm-crypt: Move post-processing into its own queue
>
>
> + _kcryptd_io_workqueue = create_workqueue("kcryptd-io");
Adding another qlobal per-cpu queue can lead to wasteful creating
of too many kernel threads in system (system with many cores etc.)
I have similar patches in my tree where the queues are created
per crypt device (so every crypt device create two single-threaded
queues).
(And I am thinking about future support of barriers - it can be
really complicated with global workqueue too.)
> @@ -1097,6 +1129,7 @@ static void __exit dm_crypt_exit(void)
> if (r < 0)
> DMERR("unregister failed %d", r);
>
> + destroy_workqueue(_kcryptd_io_workqueue);
also flush_workqueue(_kcryptd_io_workqueue) in crypt_dtr should be there.
Milan
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