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authorMark Brown <broonie@kernel.org>2021-10-18 15:50:42 +0300
committerMark Brown <broonie@kernel.org>2021-10-18 15:50:42 +0300
commitb8f3b564937c1f3529bc4897cc41c5d95d2cdbe9 (patch)
treeb71ed4906bbe2ca96d68dbf1d6d6f0fe2676f1de /include/linux/perf_event.h
parent4e52cb9e2c22c9d860910794c82461064baadd9f (diff)
parent519d81956ee277b4419c723adfb154603c2565ba (diff)
downloadlinux-b8f3b564937c1f3529bc4897cc41c5d95d2cdbe9.tar.xz
Merge tag 'v5.15-rc6' into asoc-5.16
Linux 5.15-rc6
Diffstat (limited to 'include/linux/perf_event.h')
-rw-r--r--include/linux/perf_event.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index fe156a8170aa..9b60bb89d86a 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -683,7 +683,9 @@ struct perf_event {
/*
* timestamp shadows the actual context timing but it can
* be safely used in NMI interrupt context. It reflects the
- * context time as it was when the event was last scheduled in.
+ * context time as it was when the event was last scheduled in,
+ * or when ctx_sched_in failed to schedule the event because we
+ * run out of PMC.
*
* ctx_time already accounts for ctx->timestamp. Therefore to
* compute ctx_time for a sample, simply add perf_clock().