Re: [RFC PATCH] kmod: add ability to swap root in usermode helper

From: Oleg Nesterov
Date: Tue May 21 2013 - 12:33:14 EST

On 05/21, J. Bruce Fields wrote:
> On Tue, May 21, 2013 at 05:28:36PM +0200, Oleg Nesterov wrote:
> >
> > OK, so do not do this. Export the new helper.
> You mean, export umh_set_fs_root() in the above?
> That might be OK.

Yes, or even call_usermodehelper_root().

I didn't argue with the new helper that, yes, has the additional
argument. Although personally I think it would be better to not
add it into kmod.c (until it has more users), but I am not sure
there is a better place somewhere in nfs code. Whatever is more
convenient for you.

To me this looks like call_usermodehelper_keys().


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