linux-kernel - [PATCH 00/12] various lockdep patches

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Date:	Fri, 28 Sep 2007 09:42:00 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	lkml <linux-kernel@...r.kernel.org>, linux-arch@...r.kernel.org
Cc:	Zach Brown <zach.brown@...cle.com>, Ingo Molnar <mingo@...e.hu>,
	akpm@...ux-foundation.org, Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: [PATCH 00/12] various lockdep patches

The first 3 patches provide a new lockdep check, it verifies we don't hold any
locks when returning to userspace.

	lockdep-sys_exit.patch
	lockdep-i386-sys_exit.patch
	lockdep-x86_64-sys_exit.patch

Could the various arch maintainers that have support for lockdep help out
with placing this hook?

A journal_start annotation:

	jbd-lock.patch

Up until this point stuff should be safe to merge (assuming there are no
objections and bugs.. :-)

The rest of the series annotates lock_page():

  rework lock_page() API:
	trylock_page.patch
	lock_page.patch
	lockdep-page_lock-hooks.patch

  actuall lockdep annotation:
	lockdep-depth.patch
	lockdep-fs-page.patch
	lockdep-page-async.patch
	set_page_mapping.patch
	lockdep-lock_page.patch

Part of that is re-working the lock_page() API a bit. It introduces 
trylock_page(), and removes all the raw *PageLock() usage.

I've compile and boot tested this series on x86_64 (with and without lockdep).
And it completes an LTP run with lockdep enabled.

Andrew, can we start by pusing the lock_page() API rework into -mm?

 [ this series is against -linus, but if you're willing I'll do some 
   patches against -mm ]

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