diff options
| author | Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | 2022-11-22 23:39:23 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-12-27 14:52:15 +0300 |
| commit | 14a8644d4f76fb4afdfcc46e9193af867241bd42 (patch) | |
| tree | 276aa4d9882b0da25f234640ab25a5a93da25c99 /include/trace/events/rseq.h | |
| parent | a3798e6ffb37481c47773dd1d785c395c0785af8 (diff) | |
| download | linux-14a8644d4f76fb4afdfcc46e9193af867241bd42.tar.xz | |
tracing/rseq: Add mm_cid field to rseq_update
Add the mm_cid field to the rseq_update event, allowing tracers to
follow which mm_cid is observed by user-space, and whether negative
mm_cid values are visible in case of internal scheduler implementation
issues.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221122203932.231377-22-mathieu.desnoyers@efficios.com
Diffstat (limited to 'include/trace/events/rseq.h')
| -rw-r--r-- | include/trace/events/rseq.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/trace/events/rseq.h b/include/trace/events/rseq.h index dde7a359b4ef..823b47d1ba1e 100644 --- a/include/trace/events/rseq.h +++ b/include/trace/events/rseq.h @@ -17,14 +17,17 @@ TRACE_EVENT(rseq_update, TP_STRUCT__entry( __field(s32, cpu_id) __field(s32, node_id) + __field(s32, mm_cid) ), TP_fast_assign( __entry->cpu_id = raw_smp_processor_id(); __entry->node_id = cpu_to_node(__entry->cpu_id); + __entry->mm_cid = task_mm_cid(t); ), - TP_printk("cpu_id=%d node_id=%d", __entry->cpu_id, __entry->node_id) + TP_printk("cpu_id=%d node_id=%d mm_cid=%d", __entry->cpu_id, + __entry->node_id, __entry->mm_cid) ); TRACE_EVENT(rseq_ip_fixup, |