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Date: Fri, 9 Apr 2021 06:28:44 +1000 (AEST)
From: James Morris <>
To: Mickaël Salaün <>
cc: Jann Horn <>, "Serge E . Hallyn" <>, 
    Al Viro <>, 
    Andrew Morton <>, 
    Andy Lutomirski <>, 
    Anton Ivanov <>, 
    Arnd Bergmann <>, Casey Schaufler <>, 
    David Howells <>, Jeff Dike <>, 
    Jonathan Corbet <>, Kees Cook <>, 
    Michael Kerrisk <>, 
    Richard Weinberger <>, Shuah Khan <>, 
    Vincent Dagonneau <>,,,,,,,,,, 
    Mickaël Salaün <>
Subject: Re: [PATCH v33 07/12] landlock: Support filesystem access-control

On Wed, 7 Apr 2021, Mickaël Salaün wrote:

> Changes since v31:
> * Gracefully forbid reparenting by returning EXDEV in hook_path_link()
>   and hook_path_rename() (hinted by Al Viro).
> * Replace excessive WARN_ON_ONCE() with unlikely() in
>   hook_path_rename() and use ENOENT instead of EACCES.
> * Improve comment in unmask_layers() (pointed out by Al Viro).  Also use
>   filesystem "topology" instead of "layout", which seems more
>   appropriate.
> * Add access(2) to the documented list of unsupported syscall families.
> * Replace "option" with "flag" in hook_sb_mount() comment.

Good to see these changes.

Al: any further comments now on this patch?

James Morris

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