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From:   David Howells <dhowells@redhat.com>
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To:     Joe Perches <joe@perches.com>
Cc:     dhowells@redhat.com, Waiman Long <longman@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
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        "Serge E. Hallyn" <serge@hallyn.com>, linux-mm@kvack.org,
        keyrings@vger.kernel.org, linux-kernel@vger.kernel.org,
        Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH] mm: Add kvfree_sensitive() for freeing sensitive data objects
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Date:   Mon, 06 Apr 2020 17:26:29 +0100
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Joe Perches <joe@perches.com> wrote:

> While I agree with Linus about the __ prefix,
> the z is pretty common and symmetric to all
> the <foo>zalloc uses.
> 
> And if _sensitive is actually used, it'd be
> good to do a s/kzfree/kfree_sensitive/ one day
> sooner than later.

How much overhead would it be to always use kvfree_sensitive() and never have
a kfree_sensitive()?

David