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.
*/
static void *find_pmu_context(int ctxn)
{
--
1.8.5.2
--
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