Re: [PATCH v22 06/12] fs,security: Add sb_delete hook

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On Tue, 27 Oct 2020, Mickaël Salaün wrote:

> From: Mickaël Salaün <mic@xxxxxxxxxxxxxxxxxxx>
> 
> The sb_delete security hook is called when shutting down a superblock,
> which may be useful to release kernel objects tied to the superblock's
> lifetime (e.g. inodes).
> 
> This new hook is needed by Landlock to release (ephemerally) tagged
> struct inodes.  This comes from the unprivileged nature of Landlock
> described in the next commit.
> 
> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
> Cc: James Morris <jmorris@xxxxxxxxx>
> Cc: Jann Horn <jannh@xxxxxxxxxx>
> Cc: Kees Cook <keescook@xxxxxxxxxxxx>
> Cc: Serge E. Hallyn <serge@xxxxxxxxxx>
> Signed-off-by: Mickaël Salaün <mic@xxxxxxxxxxxxxxxxxxx>

Al, Kees, JJ et al, any objections?

-- 
James Morris
<jmorris@xxxxxxxxx>

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