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    Subject[PATCH tip/core/rcu 0/11] rcu: suppress GP start to simplify force_quiescent_state()
    Hello!

    This patch series makes a sequence of changes that prevent a new RCU
    grace period from starting while force_quiescent_state() is the the
    process of trying to cause the prior grace period to complete. This
    simplifies the code and eliminates numerous painful race conditions.

    Thanx, Paul

    b/include/linux/rcutiny.h | 12 +++
    b/include/linux/rcutree.h | 3
    b/kernel/rcutorture.c | 80 +++++++++++++++++++++++-
    b/kernel/rcutree.c | 28 +++++---
    b/kernel/rcutree.h | 3
    b/kernel/rcutree_plugin.h | 20 +++++-
    kernel/rcutree.c | 153 +++++++++++++++++++++-------------------------
    kernel/rcutree.h | 15 ++--
    8 files changed, 211 insertions(+), 103 deletions(-)


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