Re: [PATCH 3/3] mm: gup: pack has_pinned in MMF_HAS_PINNED

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To: John Hubbard <jhubbard@xxxxxxxxxx>
Subject: Re: [PATCH 3/3] mm: gup: pack has_pinned in MMF_HAS_PINNED
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Date: Fri, 7 May 2021 12:14:00 +0100
Cc: Peter Xu <peterx@xxxxxxxxxx>, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Hugh Dickins <hughd@xxxxxxxxxx>, Jan Kara <jack@xxxxxxx>, Kirill Shutemov <kirill@xxxxxxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>, Michal Hocko <mhocko@xxxxxxxx>, Oleg Nesterov <oleg@xxxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Andrea Arcangeli <aarcange@xxxxxxxxxx>
In-reply-to: <69055843-185d-20ea-213b-10494a2f7246@nvidia.com>
References: <20210506232537.165788-1-peterx@redhat.com> <20210506232537.165788-4-peterx@redhat.com> <69055843-185d-20ea-213b-10494a2f7246@nvidia.com>

On Thu, May 06, 2021 at 11:42:59PM -0700, John Hubbard wrote:
> +static void set_mm_has_pinned_flag(unsigned long *mm_flags)

mm_set_has_pinned_flag(struct mm_struct *mm), please.

References:
- [PATCH 0/3] mm/gup: Fix pin page write cache bouncing on has_pinned
  - From: Peter Xu
- [PATCH 3/3] mm: gup: pack has_pinned in MMF_HAS_PINNED
  - From: Peter Xu
- Re: [PATCH 3/3] mm: gup: pack has_pinned in MMF_HAS_PINNED
  - From: John Hubbard

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