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From: David Howells <dhowells@redhat.com>
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Cc: Linus Torvalds <torvalds@osdl.org>, James Morris <jmorris@redhat.com>,
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Subject: [PATCH] implement in-kernel keys & keyring management [try #5]
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Date: Tue, 10 Aug 2004 18:59:58 +0100
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I've modified my patch to avoid a locking error that Al Viro pointed out. If
you have two keyrings A and B, if one process tries to link A to B, whilst in
parallel another process tries to link B to A, it could end up creating a
cycle in the graph. I've added code to serialise link calls with respect to
one another to obviate that problem.

It can be found at:

	http://people.redhat.com/~dhowells/keys/keys-268rc2-5.diff.bz2

David.