Re: Commit 34d76c41 causes linker errors on ia64 with NR_CPUS=4096

[Tejun Heo]

Tejun Heo wrote:
> Jiri Kosina wrote:
>> So how about something along the lines below? (completely untested as 
>> well)
>>
>> From: Jiri Kosina <jkosina@xxxxxxx>
>> Subject: sched: move rq_weight data array out of .percpu
>>
>> Commit 34d76c41 introduced percpu array update_shares_data, size of which
>> being proportional to NR_CPUS. Unfortunately this blows up ia64 for large
>> NR_CPUS configuration, as ia64 allows only 64k for .percpu section.
>>
>> Fix this by allocating this array dynamically and keep only pointer to it
>> percpu.
> 
> Looks good to me from percpu POV.

Oh... one thing.  If you're doing dynamic allocation you can use
nr_cpu_ids instead of NR_CPUS.

-- 
tejun
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