linux-kernel - Re: [PATCH] include/linux/hmm.h: Convert to use vm_fault

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Date:   Wed, 9 Jan 2019 08:23:32 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     Souptick Joarder <jrdr.linux@...il.com>
Cc:     akpm@...ux-foundation.org, jglisse@...hat.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, dan.j.williams@...el.com
Subject: Re: [PATCH] include/linux/hmm.h: Convert to use vm_fault_t

On Wed, Jan 09, 2019 at 09:49:17PM +0530, Souptick Joarder wrote:
> convert to use vm_fault_t type as return type for
> fault handler.

I think you'll also need to convert hmm_devmem_fault().  And that's
going to lead to some more spots.

(It's important to note that this is the patch working as designed.  It's
throwing up warnings where code *hasn't* been converted to vm_fault_t yet
but should have been).