Re: [PATCH 6.11.y 1/2] rcu/kvfree: Add kvfree_rcu_barrier() API

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Nov 6, 2024 at 12:20 AM Suren Baghdasaryan <surenb@xxxxxxxxxx> wrote:
>
> On Tue, Nov 5, 2024 at 11:09 PM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> >
> > On Mon, Oct 21, 2024 at 10:10:02AM -0700, Suren Baghdasaryan wrote:
> > > From: "Uladzislau Rezki (Sony)" <urezki@xxxxxxxxx>
> > >
> > > From: Uladzislau Rezki <urezki@xxxxxxxxx>
> > >
> > > commit 3c5d61ae919cc377c71118ccc76fa6e8518023f8 upstream.
> > >
> > > Add a kvfree_rcu_barrier() function. It waits until all
> > > in-flight pointers are freed over RCU machinery. It does
> > > not wait any GP completion and it is within its right to
> > > return immediately if there are no outstanding pointers.
> > >
> > > This function is useful when there is a need to guarantee
> > > that a memory is fully freed before destroying memory caches.
> > > For example, during unloading a kernel module.
> > >
> > > Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
> > > Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
> > > ---
> > >  include/linux/rcutiny.h |   5 ++
> > >  include/linux/rcutree.h |   1 +
> > >  kernel/rcu/tree.c       | 109 +++++++++++++++++++++++++++++++++++++---
> > >  3 files changed, 107 insertions(+), 8 deletions(-)
> >
> > We need a signed-off-by line from you, as you did the backport here,
> > please fix that up and resend this series.
>
> Doh! Ok, I'll resend it tomorrow morning. Thanks!

Added SOB in the new series posted at:
https://lore.kernel.org/all/20241106170927.130996-1-surenb@xxxxxxxxxx/

>
> >
> > thanks,
> >
> > greg k-h





[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux