Messages in this thread | | | Date | Fri, 27 Apr 2001 09:14:46 -0400 | From | Brian Gerst <> | Subject | Re: Suggestion for module .init.{text,data} sections |
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Ingo Oeser wrote: > > On Thu, Apr 26, 2001 at 09:49:05PM -0700, Adam J. Richter wrote: > > A while ago, on linux-kernel, we had a discussion about > > adding support for __initdata and __init in modules. Somebody > > (whose name escapes me) had implemented it by essentially adding > > a vmrealloc() facility in the kernel. I think I've thought of a > > simpler way, that would require almost no kernel changes. > > > [implementation details snipped] > > While you are at this, you could make the .exit.{text,data} > sections swappable for modules (by allocating swappable pages fro > them?) and only mark them unswappable, while the module is > exiting. > > Rationale: A device needed for swaping will never call exit > stuff, because it is still in use. So I see no obvious race here. > > Regards
__exit functions and data are usually too small to make the effort worth it. __init functions and data on the other hand could be quite large, if they contain firmware data for example.
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