Re: [RFC 2/2] ima: Fix detection of read/write violations on stacked filesystems

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On Fri, 12 Apr 2024 at 21:09, Stefan Berger <stefanb@xxxxxxxxxxxxx> wrote:

> I was hoping that this would be sufficiently generic to work with
> potential future stacked filesystems as well that would need to also
> provide support for D_REAL_FILEDATA.

I also have very bad feelings from IMA digging in the internals of overlayfs.

We should strive to get rid of remaining d_real() instances, not add more.

On a related note, D_REAL_METADATA was apparently added for IMA
(commit 11b3f8ae7081 ("fs: remove the inode argument to ->d_real()
method")), but there's no current user.  What's up with this?


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