diff options
| author | Ben Gainey <ben.gainey@arm.com> | 2024-07-30 09:44:14 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-08-02 11:30:29 +0200 |
| commit | 79bd233010859463e46a0a4b3926eaaba25a6110 (patch) | |
| tree | 111e7bea5d07d174ae48e4049fd8405623bf7252 /include/linux/perf_event.h | |
| parent | 52c3fb1a0f822fd64529ca64f3792095524de450 (diff) | |
perf: Rename perf_event_context.nr_pending to nr_no_switch_fast.
nr_pending counts the number of events in the context that
either pending_sigtrap or pending_work, but it is used
to prevent taking the fast path in perf_event_context_sched_out.
Renamed to reflect what it is used for, rather than what it
counts. This change allows using the field to track other
event properties that also require skipping the fast path
without possible confusion over the name.
Signed-off-by: Ben Gainey <ben.gainey@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20240730084417.7693-2-ben.gainey@arm.com
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 6bb0c21d6335..655f66b18418 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -966,12 +966,13 @@ struct perf_event_context { struct rcu_head rcu_head; /* - * Sum (event->pending_work + event->pending_work) + * The count of events for which using the switch-out fast path + * should be avoided. * * The SIGTRAP is targeted at ctx->task, as such it won't do changing * that until the signal is delivered. */ - local_t nr_pending; + local_t nr_no_switch_fast; }; struct perf_cpu_pmu_context { |