• Paul E. McKenney's avatar
    rcu: Add expedited grace-period support for preemptible RCU · d9a3da06
    Paul E. McKenney authored
    Implement an synchronize_rcu_expedited() for preemptible RCU
    that actually is expedited.  This uses
    synchronize_sched_expedited() to force all threads currently
    running in a preemptible-RCU read-side critical section onto the
    appropriate ->blocked_tasks[] list, then takes a snapshot of all
    of these lists and waits for them to drain.
    Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
    Cc: laijs@cn.fujitsu.com
    Cc: dipankar@in.ibm.com
    Cc: mathieu.desnoyers@polymtl.ca
    Cc: josh@joshtriplett.org
    Cc: dvhltc@us.ibm.com
    Cc: niv@us.ibm.com
    Cc: peterz@infradead.org
    Cc: rostedt@goodmis.org
    Cc: Valdis.Kletnieks@vt.edu
    Cc: dhowells@redhat.com
    LKML-Reference: <1259784616158-git-send-email->
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    d9a3da06
rcutree_trace.c 9.41 KB