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From: David Howells <dhowells@redhat.com>
To: Linus Torvalds <torvalds@osdl.org>, akpm@osdl.org
Cc: James Morris <jmorris@redhat.com>,
	linux-kernel@vger.kernel.org, arjanv@redhat.com,
	dwmw2@infradead.org, greg@kroah.com,
	Chris Wright <chrisw@osdl.org>,
	sfrench@samba.org, mike@halcrow.us,
	Trond Myklebust <trond.myklebust@fys.uio.no>,
	Kyle Moffett <mrmacman_g4@mac.com>,
	viro@parcelfarce.linux.theplanet.co.uk
Subject: [PATCH] implement in-kernel keys & keyring management [try #6]
Date: Wed, 11 Aug 2004 13:34:11 +0100	[thread overview]
Message-ID: <16655.1092227651@redhat.com> (raw)
In-Reply-To: <5788.1092160798@redhat.com>


Hi Linus, Andrew,

> 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.

I've fixed another looking bug that that introduced.

Following a reply from Chris Wright, I've also sorted out session keyring
management to what is probably a more sane approach. Processes now start off
without session keyrings being assigned. A process is automatically subscribed
to the user's default session if it doesn't have a session keyring when it
tries to access it. Processes inherit their parents session keyring or lack
thereof at fork time. Processes can still manually join a session.

The patch can be found at:

	http://people.redhat.com/~dhowells/keys/keys-268rc2-6.diff.bz2

David.

  parent reply	other threads:[~2004-08-11 12:36 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-07  0:31 [PATCH] implement in-kernel keys & keyring management David Howells
2004-08-07  8:17 ` Andrew Morton
2004-08-07 16:33   ` [PATCH] implement in-kernel keys & keyring management [try #2] David Howells
2004-08-07 17:48     ` [PATCH] implement in-kernel keys & keyring management [try #3] David Howells
2004-08-08  4:45     ` [PATCH] implement in-kernel keys & keyring management [try #2] James Morris
2004-08-09  9:33       ` David Howells
2004-08-09 14:08         ` James Morris
2004-08-09 14:35           ` David Howells
2004-08-09 15:47             ` James Morris
2004-08-10 18:49               ` David Howells
2004-08-08  2:52   ` [PATCH] implement in-kernel keys & keyring management Greg KH
2004-08-09  9:23     ` David Howells
2004-08-09 20:27       ` Greg KH
2004-08-07  8:59 ` Trond Myklebust
2004-08-07 17:45   ` David Howells
2004-08-08  5:14 ` James Morris
2004-08-08  5:25   ` Linus Torvalds
2004-08-09  1:14     ` James Morris
2004-08-09  4:27       ` Linus Torvalds
2004-08-09  6:32         ` bert hubert
2004-08-09 10:16         ` David Howells
2004-08-09 14:51         ` Alan Cox
2004-08-09 10:01       ` David Howells
2004-08-09  9:45     ` David Howells
2004-08-09 15:24       ` [PATCH] implement in-kernel keys & keyring management [try #4] David Howells
2004-08-09 21:13         ` Kyle Moffett
2004-08-10 17:59       ` [PATCH] implement in-kernel keys & keyring management [try #5] David Howells
2004-08-11  6:37         ` Chris Wright
2004-08-11  9:46           ` David Howells
2004-08-11 12:34         ` David Howells [this message]
2004-08-11 19:10           ` [PATCH] keys & keyring management: key filesystem David Howells
2004-08-09  9:40   ` [PATCH] implement in-kernel keys & keyring management David Howells

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