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From: Paul E. McKenney on 3 Mar 2010 21:00
Hello!

This patch fixes three RCU lockdep issues:

1. Makes rcu_read_lock_sched_held() correctly handle !PREEMPT
kernels.

2. Suppresses __mpol_dup() false positive.

3. Converts a pair of rcu_dereference() calls in
ftrace_perf_buf_prepare() to rcu_dereference_sched().

There are probably more where these came from. ;-)

Thanx, Paul

------------------------------------------------------------------------

include/linux/rcupdate.h | 15 ++++++++++++++-
include/trace/ftrace.h | 4 ++--
kernel/trace/trace_event_profile.c | 5 ++---
mm/mempolicy.c | 3 ++-
4 files changed, 20 insertions(+), 7 deletions(-)
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