[PATCH tip/core/urgent 0/10] v2: Fix RCU lockdep splats
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From: Paul E. McKenney on 30 Apr 2010 20:30 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(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |