Messages in this thread Patch in this message | | | From | Cody P Schafer <> | Subject | [PATCH 3/3] perf: clarify comment regarding perf_pmu_contexts | Date | Thu, 9 Jan 2014 15:51:32 -0800 |
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Again, note that the behavior of task_ctx_nr < 0 is an exception.
Signed-off-by: Cody P Schafer <cody@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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