[PATCH V3] sort: Introduce generic list_sort function

[Christoph Hellwig]

On Tue, Jan 05, 2010 at 01:52:35PM +0100, Andi Kleen wrote:
> > > Also it would seem cleaner to have it in a own file.
> > 
> > That might make sense if we had a large number of generic sort
> > functions and it was difficult to tell the code apart, but we've
> > only got 2 right now....
> 
> I was more thinking of the case that it can be easily made a lib-y
> and then eliminated by the linker on non modular kernels if not needed
> (unfortunately that would require putting the EXPORT_SYMBOL somewhere else)

lib-y doesn't work together with EXPORT_SYMBOL, having the export
outside would also always pull it in.  These days the whole lib-y mess
doesn't make sense anymore - if we really need an optional library
symbol we can just pull it in through a Kconfig variable.