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/probe-file.h | 82 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 tools/perf/util/probe-file.h (limited to 'tools/perf/util/probe-file.h') diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h new file mode 100644 index 000000000..c2bb6a5b9 --- /dev/null +++ b/tools/perf/util/probe-file.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PROBE_FILE_H +#define __PROBE_FILE_H + +#include "probe-event.h" + +struct strlist; +struct strfilter; + +/* Cache of probe definitions */ +struct probe_cache_entry { + struct list_head node; + bool sdt; + struct perf_probe_event pev; + char *spev; + struct strlist *tevlist; +}; + +struct probe_cache { + int fd; + struct list_head entries; +}; + +enum probe_type { + PROBE_TYPE_U = 0, + PROBE_TYPE_S, + PROBE_TYPE_X, + PROBE_TYPE_STRING, + PROBE_TYPE_BITFIELD, + PROBE_TYPE_END, +}; + +#define PF_FL_UPROBE 1 +#define PF_FL_RW 2 +#define for_each_probe_cache_entry(entry, pcache) \ + list_for_each_entry(entry, &pcache->entries, node) + +/* probe-file.c depends on libelf */ +#ifdef HAVE_LIBELF_SUPPORT +int open_trace_file(const char *trace_file, bool readwrite); +int probe_file__open(int flag); +int probe_file__open_both(int *kfd, int *ufd, int flag); +struct strlist *probe_file__get_namelist(int fd); +struct strlist *probe_file__get_rawlist(int fd); +int probe_file__add_event(int fd, struct probe_trace_event *tev); + +int probe_file__get_events(int fd, struct strfilter *filter, + struct strlist *plist); +int probe_file__del_strlist(int fd, struct strlist *namelist); + +int probe_cache_entry__get_event(struct probe_cache_entry *entry, + struct probe_trace_event **tevs); + +struct probe_cache *probe_cache__new(const char *target, struct nsinfo *nsi); +int probe_cache__add_entry(struct probe_cache *pcache, + struct perf_probe_event *pev, + struct probe_trace_event *tevs, int ntevs); +int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname); +int probe_cache__commit(struct probe_cache *pcache); +void probe_cache__purge(struct probe_cache *pcache); +void probe_cache__delete(struct probe_cache *pcache); +int probe_cache__filter_purge(struct probe_cache *pcache, + struct strfilter *filter); +struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache, + struct perf_probe_event *pev); +struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache, + const char *group, const char *event); +int probe_cache__show_all_caches(struct strfilter *filter); +bool probe_type_is_available(enum probe_type type); +bool kretprobe_offset_is_supported(void); +bool uprobe_ref_ctr_is_supported(void); +bool user_access_is_supported(void); +bool multiprobe_event_is_supported(void); +bool immediate_value_is_supported(void); +#else /* ! HAVE_LIBELF_SUPPORT */ +static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused, struct nsinfo *nsi __maybe_unused) +{ + return NULL; +} +#define probe_cache__delete(pcache) do {} while (0) +#endif +#endif -- cgit v1.3.1