From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca,
josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com,
tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org,
Valdis.Kletnieks@vt.edu, dhowells@redhat.com,
eric.dumazet@gmail.com
Subject: [PATCH tip/core/urgent 0/10] v2: Fix RCU lockdep splats
Date: Fri, 30 Apr 2010 17:25:48 -0700 [thread overview]
Message-ID: <20100501002548.GA27375@linux.vnet.ibm.com> (raw)
Hello!
This patchset contains ten fixes for various lockdep splats. The first
two sets are repostings/revisions, the rest new. The new patches have
all been posted to LKML, but this is the first time for inclusion.
o rcu: v2: optionally leave lockdep enabled after RCU lockdep splat
This is a repost that makes the one-splat-per-boot the default,
but allows those who want multiple splats to get this behavior
via a new CONFIG_PROVE_RCU_REPEATEDLY configuration parameter.
(Original from Lai Jiangshan.)
o KEYS: Fix an RCU warning
KEYS: Fix an RCU warning in the reading of user keys
Fixes for RCU-lockdep splats from David Howells for
security/keys. Repost of http://lkml.org/lkml/2010/4/22/411.
o cgroup: Fix an RCU warning in cgroup_path()
cgroup: Fix an RCU warning in alloc_css_id()
sched: Fix an RCU warning in print_task()
cgroup: Check task_lock in task_subsys_state()
Fixes for new RCU-lockdep splats in cgroups and sched from
Li Zefan.
o memcg: css_id() must be called under rcu_read_lock()
Fixes for new RCU-lockdep splats in memcg from Kamazawa Hiroyuki.
o blk-cgroup: Fix RCU correctness warning in cfq_init_queue()
Fix for new RCU-lockdep splat in I/O scheduler from Vivek Goyal.
o vfs: fix RCU-lockdep false positive due to /proc access
Fix for new RCU-lockdep splat from fdtable.h, with much
debugging assist from Eric Dumazet.
b/block/cfq-iosched.c | 2 ++
b/include/linux/cgroup.h | 1 +
b/include/linux/fdtable.h | 3 ++-
b/include/linux/rcupdate.h | 15 +++++++++++----
b/kernel/cgroup.c | 12 +++++++++---
b/kernel/lockdep.c | 2 ++
b/kernel/sched_debug.c | 2 ++
b/lib/Kconfig.debug | 12 ++++++++++++
b/mm/memcontrol.c | 21 ++++++++++++++++-----
b/security/keys/request_key.c | 13 ++++++++-----
b/security/keys/user_defined.c | 3 ++-
kernel/cgroup.c | 4 ++--
12 files changed, 69 insertions(+), 21 deletions(-)
next reply other threads:[~2010-05-01 0:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-01 0:25 Paul E. McKenney [this message]
2010-05-01 0:26 ` [PATCH tip/core/urgent 01/10] rcu: v2: optionally leave lockdep enabled after RCU lockdep splat Paul E. McKenney
2010-05-01 0:26 ` [PATCH tip/core/urgent 02/10] KEYS: Fix an RCU warning Paul E. McKenney
2010-05-01 0:26 ` [PATCH tip/core/urgent 03/10] KEYS: Fix an RCU warning in the reading of user keys Paul E. McKenney
2010-05-01 0:26 ` [PATCH tip/core/urgent 04/10] cgroup: Fix an RCU warning in cgroup_path() Paul E. McKenney
2010-05-01 0:26 ` [PATCH tip/core/urgent 05/10] cgroup: Fix an RCU warning in alloc_css_id() Paul E. McKenney
2010-05-01 0:26 ` [PATCH tip/core/urgent 06/10] sched: Fix an RCU warning in print_task() Paul E. McKenney
2010-05-01 0:26 ` [PATCH tip/core/urgent 07/10] cgroup: Check task_lock in task_subsys_state() Paul E. McKenney
2010-05-01 0:26 ` [PATCH tip/core/urgent 08/10] memcg: css_id() must be called under rcu_read_lock() Paul E. McKenney
2010-05-01 0:26 ` [PATCH tip/core/urgent 09/10] blk-cgroup: Fix RCU correctness warning in cfq_init_queue() Paul E. McKenney
2010-05-01 0:26 ` [PATCH tip/core/urgent 10/10] vfs: fix RCU-lockdep false positive due to /proc access Paul E. McKenney
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