1. 01 May, 2012 1 commit
  2. 26 Apr, 2012 1 commit
    • Paul E. McKenney's avatar
      rcu: Add warning for RCU_FAST_NO_HZ timer firing · 79b9a75f
      Paul E. McKenney authored
      RCU_FAST_NO_HZ uses a timer to limit the time that a CPU with callbacks
      can remain in dyntick-idle mode.  This timer is cancelled when the CPU
      exits idle, and therefore should never fire.  However, if the timer
      were migrated to some other CPU for whatever reason (1) the timer could
      actually fire and (2) firing on some other CPU would fail to wake up the
      CPU with callbacks, possibly resulting in sluggishness or a system hang.
      
      This commit therfore adds a WARN_ON_ONCE() to the timer handler in order
      to detect this condition.
      Signed-off-by: default avatarPaul E. McKenney <paul.mckenney@linaro.org>
      Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
      79b9a75f
  3. 25 Apr, 2012 3 commits
  4. 21 Apr, 2012 23 commits
  5. 20 Apr, 2012 12 commits