linux-kernel - Re: [PATCH] VMCI: Avoid extra check for access

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Message-ID: <20200624091043.GE1731290@kroah.com>
Date:   Wed, 24 Jun 2020 11:10:43 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Souptick Joarder <jrdr.linux@...il.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Jason Gunthorpe <jgg@...pe.ca>,
        Mike Marshall <hubcap@...ibond.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>, dvhart@...radead.org,
        sgarzare@...hat.com, Thomas Gleixner <tglx@...utronix.de>,
        Ira Weiny <ira.weiny@...el.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] VMCI: Avoid extra check for access_ok()

On Wed, Jun 24, 2020 at 07:11:54AM +0530, Souptick Joarder wrote:
> Hi Greg,
> 
> On Wed, May 6, 2020 at 1:40 AM Souptick Joarder <jrdr.linux@...il.com> wrote:
> >
> > get_user_pages_fast() is already having a check for the same. This
> > double check can be removed.
> >
> > Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
> 
> Does this need to be marked as stable ?

You tell me, why would it?  Does it meet the requirements for stable
kernels?  If so, which one?

thanks,
greg k-h