Messages in this thread | | | Date | Fri, 30 Apr 2010 17:25:48 -0700 | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/urgent 0/10] v2: Fix RCU lockdep splats |
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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(-)
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