Re: [PATCH v5] locking/rwsem: Make handoff bit handling more consistent

[Waiman Long]

On 4/14/22 11:42, Greg KH wrote:
> On Thu, Apr 14, 2022 at 11:18:23AM -0400, Waiman Long wrote:
> > On 4/14/22 06:48, Greg KH wrote:
> > > On Tue, Apr 12, 2022 at 01:04:05PM -0400, Waiman Long wrote:
> > > > The patch has already been in the tip tree. It may not be easy to add a
> > > > Fixes tag to it. Anyway, I will encourage stable tree maintainer to take it
> > > > as it does fix a problem as shown in your test.
> > > I have no idea what you want me to do here.  Please be explicit...
> > I would like the stable trees to include commit 1ee326196c66
> > ("locking/rwsem: Always try to wake waiters in out_nolock path") after it is
> > merged into the mainline in the v5.19 merge window. It should be applied to
> > the stable trees that have incorporated the backport of commit d257cc8cb8d5
> > ("locking/rwsem: Make handoff bit handling more consistent") since this
> > commit seems to make the missed wakeup problem easier to show up.
> Please let us know when this is merged into Linus's tree.  Nothing we
> can do until then and I'm not going to remember this in a few months
> anyway.

Sure, I will remind you again after the merge happens.

Cheers,
Longman