On 23/04/15 12:58, Jan Beulich wrote:
>
>> +typedef union {
>> + u32 head_tail;
>> + struct {
>> + u16 head;
>> + u16 tail;
>> + };
>> +} spinlock_tickets_t;
>> +
>> typedef struct spinlock {
>> - raw_spinlock_t raw;
>> + spinlock_tickets_t tickets;
>
> At least for x86 this means a growth of this and hence various
> other structures - did you examine the effects thereof? Of
> course otoh getting the lock size uniform across architectures
> is a good thing.
I've not looked.
Are there any structures whose size you're particularly concerned about?
David
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