linux-kernel - Re: [PATCH 4/9] drivers: Switch to kvfree

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Date:   Mon, 29 Nov 2021 16:18:24 +0100
From:   Uladzislau Rezki <urezki@...il.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, RCU <rcu@...r.kernel.org>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Michal Hocko <mhocko@...e.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Daniel Axtens <dja@...ens.net>,
        Frederic Weisbecker <frederic@...nel.org>,
        Neeraj Upadhyay <neeraju@...eaurora.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Theodore Y . Ts'o" <tytso@....edu>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Oleksiy Avramchenko <oleksiy.avramchenko@...ymobile.com>,
        Philipp Reisner <philipp.reisner@...bit.com>,
        "Md. Haris Iqbal" <haris.iqbal@...os.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Mike Marciniszyn <mike.marciniszyn@...nelisnetworks.com>,
        Samuel Iglesias Gonsalvez <siglesias@...lia.com>,
        Jorgen Hansen <jhansen@...are.com>,
        Raju Rangoju <rajur@...lsio.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Boris Pismenny <borisp@...dia.com>,
        Jiri Pirko <jiri@...dia.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 4/9] drivers: Switch to kvfree_rcu() API

On Mon, Nov 29, 2021 at 1:58 PM Lee Jones <lee.jones@...aro.org> wrote:
>
> On Wed, 24 Nov 2021, Uladzislau Rezki (Sony) wrote:
>
> > Instead of invoking a synchronize_rcu() to free a pointer
> > after a grace period we can directly make use of new API
> > that does the same but in more efficient way.
> >
> > CC: Philipp Reisner <philipp.reisner@...bit.com>
> > CC: "Md. Haris Iqbal" <haris.iqbal@...os.com>
> > CC: Herbert Xu <herbert@...dor.apana.org.au>
> > CC: Mike Marciniszyn <mike.marciniszyn@...nelisnetworks.com>
> > CC: Samuel Iglesias Gonsalvez <siglesias@...lia.com>
> > CC: Lee Jones <lee.jones@...aro.org>
> > CC: Jorgen Hansen <jhansen@...are.com>
> > CC: Raju Rangoju <rajur@...lsio.com>
> > CC: Saeed Mahameed <saeedm@...dia.com>
> > CC: Boris Pismenny <borisp@...dia.com>
> > CC: Jiri Pirko <jiri@...dia.com>
> > CC: "James E.J. Bottomley" <jejb@...ux.ibm.com>
> > CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Signed-off-by: Uladzislau Rezki (Sony) <urezki@...il.com>
> > ---
> >  drivers/block/drbd/drbd_nl.c                       | 9 +++------
> >  drivers/block/drbd/drbd_receiver.c                 | 6 ++----
> >  drivers/block/drbd/drbd_state.c                    | 3 +--
> >  drivers/block/rnbd/rnbd-srv.c                      | 3 +--
> >  drivers/crypto/nx/nx-common-pseries.c              | 3 +--
> >  drivers/infiniband/hw/hfi1/sdma.c                  | 3 +--
> >  drivers/ipack/carriers/tpci200.c                   | 3 +--
>
> >  drivers/mfd/dln2.c                                 | 6 ++----
>
> I'm not an expert in this API, but the premise and changes to MFD seem
> fine at first glance:
>
> Acked-by: Lee Jones <lee.jones@...aro.org>
>
Thanks!

--
Uladzislau Rezki