On Mon, Oct 19, 2009 at 05:02:51PM +0200, Carmelo Amoroso wrote: > 2009/10/19 Greg KH <greg@xxxxxxxxx>: > > On Mon, Oct 19, 2009 at 01:45:20PM +0200, Carmelo Amoroso wrote: > >> Just a few other notes. The current implementation I did based on SysV > >> has a drawback that is not backward compatible, so you cannot use old > >> modules with a kernel with the option enabled due to changes on struct > >> kernel_symbol. > > > > Why would this be a problem? ?Whenever making a kernel config change, > > you should be able to rebuild everything, as lots of other configuration > > options are that way. > > > > This is not always true... there could be cases in which you cannot > recompile old modules (e.g vendors that provide non GPL modules) But we do not care at all about that kind of thing, sorry. > >> Anyway I've just figured out how to change it to remove this limitation. > >> I need some time to review these patches. ?Further, the newer > >> implementation based on GNU hash which we are working on right now, > >> will not require the extra .undef.hash ELF sections because hash > >> values are already embedded into the GNU hash table, with a reduction > >> in terms of footprint. > > > > Footprint in the memory for the loaded module, or just in the footprint > > for the module on the disk? > > > > both Why would the already-loaded module size increase? I guess I'll just wait to see the code before worrying about this :) thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
