Re: [PATCH] Deprecate exec_usermodehelper, fix request_module.

[Andrew Morton <akpm@digeo.com>]

Brad Hards wrote:
> 
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> On Fri, 3 Jan 2003 16:08, Rusty Russell wrote:
> > + * Must be called from process context.  Returns a negative error code
> > + * if program was not execed successfully, or (exitcode << 8 + signal)
> > + * of the application (0 if wait is not set).
> Any chance that you can remove this (existing) restriction. It'd be good to be
> able to use this in some networking code (eg netif_carrier_[off|on]() ), but
> that might be in interrupt context.
> 
> It may be just a matter of duplicating the arguments, but I really know SFA
> about this stuff, and am loath to touch it least it turn to mush in my
> fingers.
> 

I vaguely seem to recall having done that once.

It wasn't very pretty:

	int gfp_flags = in_interrupt() ? GFP_ATOMIC : GFP_KERNEL; 

Patch against 2.4.0-test13 is at http://www.zip.com.au/~akpm/linux/1.txt