Jens Axboe wrote:
quoted text > On Fri, Mar 14 2008, Jeremy Fitzhardinge wrote:
>
>> Jens Axboe wrote:
>>
>>> rom: Nick Piggin <npiggin@suse.de>
>>>
>>>
>> Why is this necessary? How is smp_call_function_single slow?
>>
>
> Because it's completely serialized by the call_lock spinlock.
>
Hm, yes. Would it be possible to implement smp_call_function_mask in a
generic way to avoid that? Turn the static structure into a per-cpu
request list?
J
--
unsubscribe notice 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/
Messages in current thread:
Re: [PATCH 1/7] x86-64: introduce fast variant of smp_call_f... , Jeremy Fitzhardinge , (Sun Mar 16, 6:58 pm)