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SubjectRe: [PATCH v15 13/15] pvqspinlock: Only kick CPU at unlock time
On 04/09/2015 03:57 PM, Peter Zijlstra wrote:
> On Mon, Apr 06, 2015 at 10:55:48PM -0400, Waiman Long wrote:
>
>> @@ -219,24 +236,30 @@ static void pv_wait_node(struct mcs_spinlock *node)
>> }
>>
>> /*
>> + * Called after setting next->locked = 1& lock acquired.
>> + * Check if the the CPU has been halted. If so, set the _Q_SLOW_VAL flag
>> + * and put an entry into the lock hash table to be waken up at unlock time.
>> */
>> -static void pv_kick_node(struct mcs_spinlock *node)
>> +static void pv_scan_next(struct qspinlock *lock, struct mcs_spinlock *node)
> I'm not too sure about that name change..

It is because the function will no longer kick the cpu. So I change the
name to reflect that. I am not good at naming. Please let me know if you
have a better name.

Cheers,
Longman



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