linux-kernel - Re: [PATCH] libnvdimm/pmem: Bypass CONFIG_HARDENED

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Message-ID: <CAPcyv4iSeUPWFeSZW-dmYz9TnWhqVCx1Y1VjtUv+125_ZSQaYg@mail.gmail.com>
Date:   Sat, 18 May 2019 21:46:03 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     Jan Kara <jack@...e.cz>, linux-nvdimm <linux-nvdimm@...ts.01.org>,
        stable <stable@...r.kernel.org>, Jeff Moyer <jmoyer@...hat.com>,
        Ingo Molnar <mingo@...hat.com>, Christoph Hellwig <hch@....de>,
        Al Viro <viro@...iv.linux.org.uk>,
        Thomas Gleixner <tglx@...utronix.de>,
        Matthew Wilcox <willy@...radead.org>,
        Jeff Smits <jeff.smits@...el.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] libnvdimm/pmem: Bypass CONFIG_HARDENED_USERCOPY overhead

On Fri, May 17, 2019 at 12:25 PM Kees Cook <keescook@...omium.org> wrote:
> On Fri, May 17, 2019 at 10:28:48AM -0700, Dan Williams wrote:
> > It seems dax_iomap_actor() is not a path where we'd be worried about
> > needing hardened user copy checks.
>
> I would agree: I think the proposed patch makes sense. :)

Sounds like an acked-by to me.