linux-kernel - Re: [PATCH v3] mm: Fix mremap not considering huge pmd devmap

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Message-ID: <1591384476-31924-1-git-send-email-akaher@vmware.com>
Date:   Sat, 6 Jun 2020 00:44:36 +0530
From:   Ajay Kaher <akaher@...are.com>
To:     <fan_yang@...u.edu.cn>
CC:     <dan.j.williams@...el.com>, <kirill.shutemov@...ux.intel.com>,
        <linux-kernel@...r.kernel.org>, <torvalds@...ux-foundation.org>,
        <gregkh@...uxfoundation.org>, <srivatsab@...are.com>,
        <srivatsa@...il.mit.edu>, <akaher@...are.com>
Subject: Re: [PATCH v3] mm: Fix mremap not considering huge pmd devmap

Thanks Fan, this scenario works to reproduce on v4.9.

And following fix works for v4.9:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?h=linux-4.9.y&id=44cb51d5b4a736446b728bbde8407844d71843ef

-Ajay