Peter Xu <[email protected]> wrote:
> On Thu, Mar 23, 2017 at 09:45:23PM +0100, Juan Quintela wrote:
>> This are the last postcopy fields still at MigrationState. Once there
>
> s/This/These/
>
>> Move MigrationSrcPageRequest to ram.c and remove MigrationState
>> parameters where appropiate.
>>
>> Signed-off-by: Juan Quintela <[email protected]>
>
> Reviewed-by: Peter Xu <[email protected]>
>
> One question below though...
>
> [...]
>
>> @@ -1191,19 +1204,18 @@ static bool get_queued_page(RAMState *rs,
>> MigrationState *ms,
>> *
>> * It should be empty at the end anyway, but in error cases there may
>> * xbe some left.
>> - *
>> - * @ms: current migration state
>> */
>> -void flush_page_queue(MigrationState *ms)
>> +void flush_page_queue(void)
>> {
>> - struct MigrationSrcPageRequest *mspr, *next_mspr;
>> + struct RAMSrcPageRequest *mspr, *next_mspr;
>> + RAMState *rs = &ram_state;
>> /* This queue generally should be empty - but in the case of a failed
>> * migration might have some droppings in.
>> */
>> rcu_read_lock();
>
> Could I ask why we are taking the RCU read lock rather than the mutex
> here?
I will let this one for dave.
>
>> - QSIMPLEQ_FOREACH_SAFE(mspr, &ms->src_page_requests, next_req,
>> next_mspr) {
>> + QSIMPLEQ_FOREACH_SAFE(mspr, &rs->src_page_requests, next_req,
>> next_mspr) {
>> memory_region_unref(mspr->rb->mr);
>> - QSIMPLEQ_REMOVE_HEAD(&ms->src_page_requests, next_req);
>> + QSIMPLEQ_REMOVE_HEAD(&rs->src_page_requests, next_req);
>> g_free(mspr);
>> }
>> rcu_read_unlock();
>
> Thanks,
>
> -- peterx
