Hi Waiman,
On Wed, 5 Jun 2019 at 00:00, Waiman Long wrote:
> With my patchset applied, the reader-writer ordering is still supposed
> to be preserved. Of course, there can be exceptions depending on the
> exact timing, but we can't rely on that to prevent deadlock.
This is exactly what I want
On 6/4/19 5:12 AM, Boqun Feng wrote:
> On Tue, Jun 04, 2019 at 11:26:30AM +0800, Yuyang Du wrote:
>> On Tue, 4 Jun 2019 at 11:03, Yuyang Du wrote:
>>> Hi Waiman,
>>>
>>> On Tue, 21 May 2019 at 05:01, Waiman Long wrote:
Because of writer lock stealing, it is possible that a constant
On 6/3/19 11:26 PM, Yuyang Du wrote:
> On Tue, 4 Jun 2019 at 11:03, Yuyang Du wrote:
>> Hi Waiman,
>>
>> On Tue, 21 May 2019 at 05:01, Waiman Long wrote:
>>> Because of writer lock stealing, it is possible that a constant
>>> stream of incoming writers will cause a waiting writer or reader to
On Tue, Jun 04, 2019 at 11:26:30AM +0800, Yuyang Du wrote:
> On Tue, 4 Jun 2019 at 11:03, Yuyang Du wrote:
> >
> > Hi Waiman,
> >
> > On Tue, 21 May 2019 at 05:01, Waiman Long wrote:
> > >
> > > Because of writer lock stealing, it is possible that a constant
> > > stream of incoming writers will
On Tue, 4 Jun 2019 at 11:03, Yuyang Du wrote:
>
> Hi Waiman,
>
> On Tue, 21 May 2019 at 05:01, Waiman Long wrote:
> >
> > Because of writer lock stealing, it is possible that a constant
> > stream of incoming writers will cause a waiting writer or reader to
> > wait indefinitely leading to lock
Hi Waiman,
On Tue, 21 May 2019 at 05:01, Waiman Long wrote:
>
> Because of writer lock stealing, it is possible that a constant
> stream of incoming writers will cause a waiting writer or reader to
> wait indefinitely leading to lock starvation.
>
> This patch implements a lock handoff mechanism
Because of writer lock stealing, it is possible that a constant
stream of incoming writers will cause a waiting writer or reader to
wait indefinitely leading to lock starvation.
This patch implements a lock handoff mechanism to disable lock stealing
and force lock handoff to the first waiter or
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