Messages in this thread | | | From | Mike Frysinger <> | Date | Wed, 23 Mar 2011 20:31:42 -0400 | Subject | Re: [PATCH] NOMMU: support SMP dynamic percpu_alloc |
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On Wed, Mar 23, 2011 at 8:20 PM, David Howells wrote: > Mike Frysinger wrote: >> The percpu code requires more functions to be implemented in the mm core >> which nommu currently does not provide. So add inline implementations >> since these are largely meaningless on nommu systems. > > Under what conditions are these required? > > I've seen one percpu compilation bug that I've made a patch for (see > attached), but none of these. Is SMP required to trigger them?
yes, it only occurs in SMP builds.
i havent seen the build error you mention below, but i think that's because in a past discussion we determined that NOMMU ports should be setting VMALLOC_START to 0 and VMALLOC_END to -1. is that no longer the case ?
there are bunch more places where things would fail if VMALLOC_{START,END} werent defined ... -mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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