Eric Lee / smarc-fsl-linux-kernel

01 Dec, 2012

1 commit

  • 91d1aa43d   context_tracking: New context tracking susbsystem ... Browse Code ยป

    Create a new subsystem that probes on kernel boundaries
    to keep track of the transitions between level contexts
    with two basic initial contexts: user or kernel.

    This is an abstraction of some RCU code that use such tracking
    to implement its userspace extended quiescent state.

    We need to pull this up from RCU into this new level of indirection
    because this tracking is also going to be used to implement an "on
    demand" generic virtual cputime accounting. A necessary step to
    shutdown the tick while still accounting the cputime.

    Signed-off-by: Frederic Weisbecker
    Cc: Andrew Morton
    Cc: H. Peter Anvin
    Cc: Ingo Molnar
    Cc: Paul E. McKenney
    Cc: Peter Zijlstra
    Cc: Steven Rostedt
    Cc: Thomas Gleixner
    Cc: Li Zhong
    Cc: Gilad Ben-Yossef
    Reviewed-by: Steven Rostedt
    [ paulmck: fix whitespace error and email address. ]
    Signed-off-by: Paul E. McKenney

    Frederic Weisbecker