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SubjectRe: [PATCH 3/3] ima: use fs method to read integrity data
On Thu, Sep 14, 2017 at 10:50:27PM -0700, Linus Torvalds wrote:
> This is still wrong.
>
> (a) there is no explanation for why we need that exclusive lock in the
> first place
>
> Why should a read need exclusive access? You'd think shared is sufficient.
> But regardless, it needs *explanation*.

Shared is sufficient, and nothing in the patch (except for the
description) actually requires an exclusive lock. It just happens that
ima holds it exclusive for other internal reasons.

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