Re: [RFC] rwsem removal from kobj_map

[corbet@lwn.net (Jonathan Corbet)]

[Since this is something I once looked at too...]

>  struct kobj_map *kobj_map_init(kobj_probe_t *base_probe,
> -		struct subsystem *s)
> +		struct subsystem *s, struct semaphore *sem)

The only reason kobj_map_init() needed the subsystem argument was for
the semaphore.  Since you're passing that separately now, I would think
that the subsystem argument could simply go away altogether.

Once that's done, you should be able to delete cdev_subsys as well; when
I cleaned that stuff up, I only left it there for kobj_map().

jon

Jonathan Corbet
Executive editor, LWN.net
corbet@lwn.net