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

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Date:   Thu, 05 Jul 2018 00:55:27 +0800
From:   Huaisheng Ye <yehs2007@...o.com>
To:     "\"Dan Williams\"" <dan.j.williams@...el.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 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.

---
Cheers,
Huaisheng Ye