linux-kernel - Re: [PATCH v2 2/7] mm/gup: introduce pin_user

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Message-ID: <2a0dbe25-f2a6-1aaa-8741-1956d06cde60@nvidia.com>
Date:   Tue, 6 Sep 2022 00:12:29 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Jens Axboe <axboe@...nel.dk>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Miklos Szeredi <miklos@...redi.hu>,
        "Darrick J . Wong" <djwong@...nel.org>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <anna@...nel.org>, Jan Kara <jack@...e.cz>,
        David Hildenbrand <david@...hat.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-xfs@...r.kernel.org, linux-nfs@...r.kernel.org,
        linux-mm@...ck.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/7] mm/gup: introduce pin_user_page()

On 9/5/22 23:37, Christoph Hellwig wrote:
> No need to export this, it really is an internal helper for
> the iov_iter code.

Agreed. I'd fallen into a bit of a habit, for gup APIs. But this
one has a much more limited and special role, yes.


thanks,

-- 
John Hubbard
NVIDIA