• Paul E. McKenney's avatar
    debugobjects: Make debug_object_activate() return status · b778ae25
    Paul E. McKenney authored
    In order to better respond to things like duplicate invocations
    of call_rcu(), RCU needs to see the status of a call to
    debug_object_activate().  This would allow RCU to leak the callback in
    order to avoid adding freelist-reuse mischief to the duplicate invoations.
    This commit therefore makes debug_object_activate() return status,
    zero for success and -EINVAL for failure.
    Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
    Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
    Cc: Sedat Dilek <sedat.dilek@gmail.com>
    Cc: Davidlohr Bueso <davidlohr.bueso@hp.com>
    Cc: Rik van Riel <riel@surriel.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Tested-by: default avatarSedat Dilek <sedat.dilek@gmail.com>
    Reviewed-by: default avatarJosh Triplett <josh@joshtriplett.org>