linux-kernel - Re: PATCH [1/1]: audit: acquire creds selectively to reduce atomic op overhead

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Message-ID: <21526.1300219877@redhat.com>
Date:	Tue, 15 Mar 2011 20:11:17 +0000
From:	David Howells <dhowells@...hat.com>
To:	Eric Paris <eparis@...hat.com>
Cc:	dhowells@...hat.com, Tony Jones <tonyj@...e.de>,
	linux-kernel@...r.kernel.org, linux-audit@...hat.com,
	Al Viro <viro@...iv.linux.org.uk>
Subject: Re: PATCH [1/1]: audit: acquire creds selectively to reduce atomic op overhead

Eric Paris <eparis@...hat.com> wrote:

> WARN_ON(cred != current->cred && cred->refcnt != 1)

'tsk->parent == current' perhaps?  Or audit_alloc() could pass a flag
indicating the state, or just look to see if tsk->audit_context is still NULL.

David
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