From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 5 Aug 2026 07:52:36 -0700 Subject: workqueue: skip the node_nr_active update for non-unbound workqueues apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao Signed-off-by: Tejun Heo --- include/trace/events/napi.h | 77 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 include/trace/events/napi.h (limited to 'include/trace/events/napi.h') diff --git a/include/trace/events/napi.h b/include/trace/events/napi.h new file mode 100644 index 000000000..b567b9ffe --- /dev/null +++ b/include/trace/events/napi.h @@ -0,0 +1,77 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM napi + +#if !defined(_TRACE_NAPI_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_NAPI_H + +#include +#include +#include + +#define NO_DEV "(no_device)" + +TRACE_EVENT(napi_poll, + + TP_PROTO(struct napi_struct *napi, int work, int budget), + + TP_ARGS(napi, work, budget), + + TP_STRUCT__entry( + __field( struct napi_struct *, napi) + __string( dev_name, napi->dev ? napi->dev->name : NO_DEV) + __field( int, work) + __field( int, budget) + ), + + TP_fast_assign( + __entry->napi = napi; + __assign_str(dev_name); + __entry->work = work; + __entry->budget = budget; + ), + + TP_printk("napi poll on napi struct %p for device %s work %d budget %d", + __entry->napi, __get_str(dev_name), + __entry->work, __entry->budget) +); + +TRACE_EVENT(dql_stall_detected, + + TP_PROTO(unsigned short thrs, unsigned int len, + unsigned long last_reap, unsigned long hist_head, + unsigned long now, unsigned long *hist), + + TP_ARGS(thrs, len, last_reap, hist_head, now, hist), + + TP_STRUCT__entry( + __field( unsigned short, thrs) + __field( unsigned int, len) + __field( unsigned long, last_reap) + __field( unsigned long, hist_head) + __field( unsigned long, now) + __array( unsigned long, hist, 4) + ), + + TP_fast_assign( + __entry->thrs = thrs; + __entry->len = len; + __entry->last_reap = last_reap; + __entry->hist_head = hist_head * BITS_PER_LONG; + __entry->now = now; + memcpy(__entry->hist, hist, sizeof(entry->hist)); + ), + + TP_printk("thrs %u len %u last_reap %lu hist_head %lu now %lu hist %016lx %016lx %016lx %016lx", + __entry->thrs, __entry->len, + __entry->last_reap, __entry->hist_head, __entry->now, + __entry->hist[0], __entry->hist[1], + __entry->hist[2], __entry->hist[3]) +); + +#undef NO_DEV + +#endif /* _TRACE_NAPI_H */ + +/* This part must be outside protection */ +#include -- cgit v1.3.1