linux-kernel - [PATCH 0/4] kill-the-bkl/reiserfs: fix some lock dependency inversions

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Date:	Tue, 25 Aug 2009 04:32:46 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Chris Mason <chris.mason@...cle.com>,
	Roland Dreier <rdreier@...co.com>, Ingo Molnar <mingo@...e.hu>,
	Andi Kleen <andi@...stfloor.org>,
	Jeff Mahoney <jeffm@...e.com>,
	Alexander Beregalov <a.beregalov@...il.com>,
	Bron Gondwana <brong@...tmail.fm>,
	Reiserfs <reiserfs-devel@...r.kernel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Andrea Gelmini <andrea.gelmini@...il.com>,
	"Trenton D. Adams" <trenton.d.adams@...il.com>,
	Thomas Meyer <thomas@...3r.de>,
	Alessio Igor Bogani <abogani@...ware.it>,
	Marcel Hilzinger <mhilzinger@...uxnewmedia.de>,
	Edward Shishkin <edward.shishkin@...il.com>,
	Laurent Riffard <laurent.riffard@...e.fr>
Subject: [PATCH 0/4] kill-the-bkl/reiserfs: fix some lock dependency inversions

Hi,

This small set fixes some lock dependency inversions found in reiserfs
xattr and mmap paths.
I guess there are still some of them that I'll have to hunt, especially one
reported by Laurent Riffard and another one introduced by the reiserfs_readdir
path optimization (though I'm not sure about the latter, I have yet to find a
way to reproduce it properly).

As usual, these patches can be found at:

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git \
	reiserfs/kill-bkl

Thanks,
Frederic.

Frederic Weisbecker (4):
  kill-the-bkl/reiserfs: fix "reiserfs lock" / "inode mutex" lock
    inversion dependency
  kill-the-bkl/reiserfs: fix recursive reiserfs lock in
    reiserfs_mkdir()
  kill-the-bkl/reiserfs: fix recursive reiserfs write lock in
    reiserfs_commit_write()
  kill-the-bkl/reiserfs: panic in case of lock imbalance

 fs/reiserfs/inode.c |   11 ++---------
 fs/reiserfs/lock.c  |    7 +++----
 fs/reiserfs/namei.c |    7 ++++---
 fs/reiserfs/xattr.c |    2 +-
 4 files changed, 10 insertions(+), 17 deletions(-)


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