From: Roland Dreier <rdreier@cisco.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Jason Baron <jbaron@redhat.com>,
linux-kernel@vger.kernel.org, arjan@infradead.org
Subject: Re: locking hierarchy based on lockdep
Date: Mon, 06 Nov 2006 12:21:50 -0800 [thread overview]
Message-ID: <adapsc0l40x.fsf@cisco.com> (raw)
In-Reply-To: <20061106200529.GA15370@elte.hu> (Ingo Molnar's message of "Mon, 6 Nov 2006 21:05:29 +0100")
> i like your idea of using lockdep to document locking hierarchies.
Yes, it's definitely a cool idea. I think the current implementation
is not that useful, since it jams all the unrelated kernel locks into
a single ordered list, when in fact many locks simply have no ordering
relationship at all because they're never both taken. This makes the
list hard to read and in fact loses the information of which locks
have been taken together.
- R.
next prev parent reply other threads:[~2006-11-06 20:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-06 18:32 locking hierarchy based on lockdep Jason Baron
2006-11-06 20:05 ` Ingo Molnar
2006-11-06 20:21 ` Roland Dreier [this message]
2006-11-06 20:22 ` Jason Baron
2006-11-06 20:37 ` Roland Dreier
2006-11-06 20:40 ` Jason Baron
2006-11-07 23:39 ` Jason Baron
2006-11-07 23:53 ` Ingo Molnar
2006-11-08 18:04 ` Jason Baron
2006-11-09 9:15 ` Ingo Molnar
2006-11-09 18:58 ` Jason Baron
2006-11-10 9:27 ` Ingo Molnar
2006-11-08 13:08 ` Pavel Machek
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