linux-kernel - Re: [RFC PATCH 3/3] mm, proc: report PR_SET_THP

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Message-Id: <0ACDD94B-75AD-4DD0-B2E3-32C0EDFBAA5E@oracle.com>
Date:   Mon, 26 Nov 2018 17:33:32 -0700
From:   William Kucharski <william.kucharski@...cle.com>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     linux-api@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexey Dobriyan <adobriyan@...il.com>, linux-mm@...ck.org,
        LKML <linux-kernel@...r.kernel.org>,
        Michal Hocko <mhocko@...e.com>
Subject: Re: [RFC PATCH 3/3] mm, proc: report PR_SET_THP_DISABLE in proc

This determines whether the page can theoretically be THP-mapped , but is the intention to also check for proper alignment and/or preexisting PAGESIZE page cache mappings for the address range?

I'm having to deal with both these issues in the text page THP prototype I've been working on for some time now.

    Thanks,
         William Kucharski