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Date:   Thu, 7 Mar 2019 00:32:09 +0100
From:   Dominique Martinet <>
To:     Andrew Morton <>
Cc:     Jiri Kosina <>, Vlastimil Babka <>,
        Linus Torvalds <>,,,, Peter Zijlstra <>,
        Greg KH <>,
        Jann Horn <>,
        Andy Lutomirski <>,
        Cyril Hrubis <>, Daniel Gruss <>,
        Dave Chinner <>,
        Kevin Easton <>,
        "Kirill A. Shutemov" <>,
        Matthew Wilcox <>, Tejun Heo <>
Subject: Re: [PATCH 0/3] mincore() and IOCB_NOWAIT adjustments

Andrew Morton wrote on Wed, Mar 06, 2019:
> On Wed, 6 Mar 2019 23:48:03 +0100 (CET) Jiri Kosina <> wrote:
> > 3/3 is actually waiting for your decision, see
> > 
> >
> I pity anyone who tried to understand this code by reading this code. 
> Can we please get some careful commentary in there explaining what is
> going on, and why things are thus?
> I guess the [3/3] change makes sense, although it's unclear whether
> anyone really needs it?  5.0 was released with 574823bfab8 ("Change
> mincore() to count "mapped" pages rather than "cached" pages") so we'll
> have a release cycle to somewhat determine how much impact 574823bfab8
> has on users.  How about I queue up [3/3] and we reevaluate its
> desirability in a couple of months?


574823bfab8 has been reverted in 30bac164aca750, included in 5.0-rc4, so
the controversial change has only been there from 5.0-rc1 to 5.0-rc3


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