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 --- tools/perf/util/perf-hooks.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tools/perf/util/perf-hooks.h (limited to 'tools/perf/util/perf-hooks.h') diff --git a/tools/perf/util/perf-hooks.h b/tools/perf/util/perf-hooks.h new file mode 100644 index 000000000..27fbec62d --- /dev/null +++ b/tools/perf/util/perf-hooks.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef PERF_UTIL_PERF_HOOKS_H +#define PERF_UTIL_PERF_HOOKS_H + +#ifdef __cplusplus +extern "C" { +#endif + +typedef void (*perf_hook_func_t)(void *ctx); +struct perf_hook_desc { + const char * const hook_name; + perf_hook_func_t * const p_hook_func; + void *hook_ctx; +}; + +extern void perf_hooks__invoke(const struct perf_hook_desc *); +extern void perf_hooks__recover(void); + +#define PERF_HOOK(name) \ +extern struct perf_hook_desc __perf_hook_desc_##name; \ +static inline void perf_hooks__invoke_##name(void) \ +{ \ + perf_hooks__invoke(&__perf_hook_desc_##name); \ +} + +#include "perf-hooks-list.h" +#undef PERF_HOOK + +extern int +perf_hooks__set_hook(const char *hook_name, + perf_hook_func_t hook_func, + void *hook_ctx); + +extern perf_hook_func_t +perf_hooks__get_hook(const char *hook_name); + +#ifdef __cplusplus +} +#endif +#endif -- cgit v1.3.1