Re: [Xen-devel] [patch 03/44] usermodehelper: split setup fromexecution

[Rusty Russell]

On Mon, 2007-07-16 at 16:15 -0700, Jeremy Fitzhardinge wrote:
> plain text document attachment (usermodehelper-split-init.patch)
> Rather than having hundreds of variations of call_usermodehelper for
> various pieces of usermode state which could be set up, split the
> info allocation and initialization from the actual process execution.
> 
> This means the general pattern becomes:
>  info = call_usermodehelper_setup(path, argv, envp); /* basic state */
>  call_usermodehelper_<SET EXTRA STATE>(info, stuff...);	/* extra state */
>  call_usermodehelper_exec(info, wait);	/* run process and free info */

The patch seems fine, but the names are awkward.  They've always been
awkward (it's *userspace* helper, not *usermode* helper), but this just
shines a bright light on them.

So how about:

	call_usermodehelper_setup -> create_userspace_helper
	call_usermodehelper_<SET_EXTRA_STATE> -> userspace_helper_...
	call_usermodehelper_exec -> run_userspace_helper

I can do that as a separate patch if you prefer (but it'd be nice to
have it in the same merge window so the interface only churns once).

Rusty.

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