On Thu, Jan 09, 2014 at 03:51:32PM -0800, Cody P Schafer wrote: > Again, note that the behavior of task_ctx_nr < 0 is an exception. > > Signed-off-by: Cody P Schafer <c...@linux.vnet.ibm.com> > --- > kernel/events/core.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/kernel/events/core.c b/kernel/events/core.c > index e9f60d0..159ef12 100644 > --- a/kernel/events/core.c > +++ b/kernel/events/core.c > @@ -6276,8 +6276,9 @@ static int perf_event_idx_default(struct perf_event > *event) > } > > /* > - * Ensures all contexts with the same task_ctx_nr have the same > - * pmu_cpu_context too. > + * Ensures all contexts with the same task_ctx_nr (where that task_ctx_nr > + * is >=0) have the same pmu_cpu_context too. Contexts with with negative > (<0) > + * task_ctx_nr do not share pmu_cpu_contexts. > */
Please stay within the enum name space; the <0 really is an implementation detail, mostly done because testing for sign is often cheaper than an immediate comparison. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
