Messages in this thread | | | Date | Tue, 20 Oct 2009 09:11:38 +0200 | From | Eric Dumazet <> | Subject | Re: Commit 34d76c41 causes linker errors on ia64 with NR_CPUS=4096 |
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Ingo Molnar a écrit :
> Still looks like a bug if it causes a breakage (linker error) on IA64, > and if the 'fix' (i'd call it a workaround) causes a (small but nonzero) > performance regression on other architectures. >
True, but this also save some amount of ram for some distro kernels.
If we keep this static NR_CPUS thing, we might be able to free the end of table, for other per_cpu users ?
if (nr_cpus_ids < NR_CPUS) { per_cpu_free_static_zone(&update_shares_data[nr_cpus_ids], sizeof(long)*(NR_CPUS - nr_cpus_ids)); }
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