Re: [PATCH 00/13] Rename k[v]free_rcu() single argument to k[v]free_rcu_mightsleep()

From: Paul E. McKenney
Date: Thu Feb 02 2023 - 11:35:27 EST


On Thu, Feb 02, 2023 at 04:54:15PM +0100, Uladzislau Rezki wrote:
> On Wed, Feb 01, 2023 at 11:12:11AM -0800, Paul E. McKenney wrote:
> > On Wed, Feb 01, 2023 at 04:08:06PM +0100, Uladzislau Rezki (Sony) wrote:
> > > This small series is based on Paul's "dev" branch. Head is 6002817348a1c610dc1b1c01ff81654cdec12be4
> > > it renames a single argument of k[v]free_rcu() to its new k[v]free_rcu_mightsleep() name.
> > >
> > > 1.
> > > The problem is that, recently we have run into a precedent when
> > > a user intended to give a second argument to kfree_rcu() API but
> > > forgot to do it in a code so a call became as a single argument
> > > of kfree_rcu() API.
> > >
> > > 2.
> > > Such mistyping can lead to hidden bags where sleeping is forbidden.
> > >
> > > 3.
> > > _mightsleep() prefix gives much more information for which contexts
> > > it can be used for.
> >
> > Thank you!!!
> >
> > I have queued these (aside from 10/13, which is being replaced by a
> > patch from Julian Anastasov) for further testing and review. And with
> > the usual wordsmithing.
> >
> Good. 10/13 will go with two arguments. So it is not needed. Just for
> confirmation.

Got it, thank you!

> BTW, i see two complains from the robot due to 10/13 patch uses an old API
> name.

Thank you for the heads up! I will be careful not to expose the last in
the series to -next before they get something in. Unless they take too
long. ;-)

Thanx, Paul

> > If testing goes well, I might try to get 1/13 into the next merge window,
> > which would simplify things if maintainers want to take their patches
> > separately.
> >
> Thanks!
>
> --
> Uladzislau Rezki