linux-kernel - Re: [PATCH v2 0/4] Assigning NULL to gfn of dax_direct

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Message-ID: <CAPcyv4iDUYMsHzAmuRb1S_fiwCXWEXm90Q=j_fqTeMETwvKFzg@mail.gmail.com>
Date:   Wed, 4 Jul 2018 10:16:09 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     Huaisheng Ye <yehs2007@...o.com>
Cc:     linux-nvdimm <linux-nvdimm@...ts.01.org>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Matthew Wilcox <willy@...radead.org>,
        Vishal L Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Jens Axboe <axboe@...nel.dk>,
        Greg KH <gregkh@...uxfoundation.org>,
        Bart Van Assche <bart.vanassche@....com>,
        Jan Kara <jack@...e.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-s390 <linux-s390@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        colyli <colyli@...e.de>, NingTing Cheng <chengnt@...ovo.com>,
        Huaisheng Ye <yehs1@...ovo.com>
Subject: Re: [PATCH v2 0/4] Assigning NULL to gfn of dax_direct_access if useless

On Wed, Jul 4, 2018 at 9:55 AM, Huaisheng Ye <yehs2007@...o.com> wrote:
>
>
>
>
>  ---- On Thu, 05 Jul 2018 00:48:40 +0800 Dan Williams <dan.j.williams@...el.com> wrote ----
>  > On Wed, Jul 4, 2018 at 9:38 AM, Huaisheng Ye <yehs2007@...o.com> wrote:
>  > > From: Huaisheng Ye <yehs1@...ovo.com>
>  > >
>  > > Changes since v1 [1]:
>  > > * Collect Jan's reviewed-by.
>  > > * According to Dan's suggestion, update the unit test infrastructure
>  > >   tools/testing/nvdimm/pmem-dax.c for checking the validity of gfn.
>  > >
>  > > [1]: https://lkml.org/lkml/2018/7/4/81
>  > >
>  > > ---
>  > >
>  > > Some functions within fs/dax don't need to get gfn from direct_access.
>  >
>  > Any reason you are calling it 'gfn'? I'm assuming that is a typo and
>  > it should be 'pfn'.
>
> Oh, sorry.
> I made a mistake, it is a typo. I will correct it right now.

Don't worry about sending a new version. I'll fix it up when I apply the series.