linux-kernel - Re: [PATCH v9 4/4] uprobe: use FOLL_SPLIT_PMD instead of FOLL

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Message-Id: <20190726165226.7068704eb54a0104aaead703@linux-foundation.org>
Date:   Fri, 26 Jul 2019 16:52:26 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Song Liu <songliubraving@...com>
Cc:     lkml <linux-kernel@...r.kernel.org>, Linux-MM <linux-mm@...ck.org>,
        "matthew.wilcox@...cle.com" <matthew.wilcox@...cle.com>,
        "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "oleg@...hat.com" <oleg@...hat.com>,
        "rostedt@...dmis.org" <rostedt@...dmis.org>,
        Kernel Team <Kernel-team@...com>,
        "william.kucharski@...cle.com" <william.kucharski@...cle.com>,
        "srikar@...ux.vnet.ibm.com" <srikar@...ux.vnet.ibm.com>
Subject: Re: [PATCH v9 4/4] uprobe: use FOLL_SPLIT_PMD instead of FOLL_SPLIT

On Fri, 26 Jul 2019 23:44:34 +0000 Song Liu <songliubraving@...com> wrote:

> 
> 
> > On Jul 26, 2019, at 4:02 PM, Andrew Morton <akpm@...ux-foundation.org> wrote:
> > 
> > On Thu, 25 Jul 2019 22:46:54 -0700 Song Liu <songliubraving@...com> wrote:
> > 
> >> This patches uses newly added FOLL_SPLIT_PMD in uprobe. This enables easy
> >> regroup of huge pmd after the uprobe is disabled (in next patch).
> > 
> > Confused.  There is no "next patch".
> 
> That was the patch 5, which was in earlier versions. I am working on 
> addressing Kirill's feedback for it. 
> 
> Do I need to resubmit 4/4 with modified change log? 

Please just send new changelog text now.  I assume this [4/4] patch is
useful without patch #5, but a description of why it is useful is
appropriate.

I trust the fifth patch is to be sent soon?