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SubjectOn running user mode helpers
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I see we have a new "call_usermodehelper" routine now.  It looks like the
end result is similer to exec_usermodehelper, except that you no longer
need to mess with creating kernel threads yourself.

Is call_usermodehelper now the officially blessed way for kernel code to
run something in user space? Perhaps exec_usermodehelper should become
private to kmod.c?

I also see that call_usermodehelper will call do_exit() if the exec fails,
while the path taken in request_module does not do that. Can both be
right?

Thanks,

jon

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