Re: [PATCH 2/3] userfaultfd: UFFDIO_REMAP uABI

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To: Suren Baghdasaryan <surenb@xxxxxxxxxx>, akpm@xxxxxxxxxxxxxxxxxxxx
Subject: Re: [PATCH 2/3] userfaultfd: UFFDIO_REMAP uABI
From: David Hildenbrand <david@xxxxxxxxxx>
Date: Thu, 14 Sep 2023 20:47:25 +0200
Cc: viro@xxxxxxxxxxxxxxxxxx, brauner@xxxxxxxxxx, shuah@xxxxxxxxxx, aarcange@xxxxxxxxxx, lokeshgidra@xxxxxxxxxx, peterx@xxxxxxxxxx, hughd@xxxxxxxxxx, mhocko@xxxxxxxx, axelrasmussen@xxxxxxxxxx, rppt@xxxxxxxxxx, willy@xxxxxxxxxxxxx, Liam.Howlett@xxxxxxxxxx, jannh@xxxxxxxxxx, zhangpeng362@xxxxxxxxxx, bgeffon@xxxxxxxxxx, kaleshsingh@xxxxxxxxxx, ngeoffray@xxxxxxxxxx, jdduke@xxxxxxxxxx, linux-mm@xxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, kernel-team@xxxxxxxxxxx
In-reply-to: <20230914152620.2743033-3-surenb@google.com>
Organization: Red Hat
References: <20230914152620.2743033-1-surenb@google.com> <20230914152620.2743033-3-surenb@google.com>
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On 14.09.23 17:26, Suren Baghdasaryan wrote:

From: Andrea Arcangeli <aarcange@xxxxxxxxxx>

This implements the uABI of UFFDIO_REMAP.

Notably one mode bitflag is also forwarded (and in turn known) by the
lowlevel remap_pages method.

Sorry to say, but these functions are unacceptably long. Please findways to structure the code in a better way.


--
Cheers,

David / dhildenb

Follow-Ups:
- Re: [PATCH 2/3] userfaultfd: UFFDIO_REMAP uABI
  - From: Suren Baghdasaryan

References:
- [PATCH 0/3] userfaultfd remap option
  - From: Suren Baghdasaryan
- [PATCH 2/3] userfaultfd: UFFDIO_REMAP uABI
  - From: Suren Baghdasaryan

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