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/mem-info.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 tools/perf/util/mem-info.c (limited to 'tools/perf/util/mem-info.c') diff --git a/tools/perf/util/mem-info.c b/tools/perf/util/mem-info.c new file mode 100644 index 000000000..d3efa9c13 --- /dev/null +++ b/tools/perf/util/mem-info.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include "mem-info.h" + +struct mem_info *mem_info__get(struct mem_info *mi) +{ + struct mem_info *result; + + if (RC_CHK_GET(result, mi)) + refcount_inc(mem_info__refcnt(mi)); + + return result; +} + +void mem_info__put(struct mem_info *mi) +{ + if (mi && refcount_dec_and_test(mem_info__refcnt(mi))) { + addr_map_symbol__exit(mem_info__iaddr(mi)); + addr_map_symbol__exit(mem_info__daddr(mi)); + RC_CHK_FREE(mi); + } else { + RC_CHK_PUT(mi); + } +} + +struct mem_info *mem_info__new(void) +{ + struct mem_info *result = NULL; + RC_STRUCT(mem_info) *mi = zalloc(sizeof(*mi)); + + if (ADD_RC_CHK(result, mi)) + refcount_set(mem_info__refcnt(result), 1); + + return result; +} + +struct mem_info *mem_info__clone(struct mem_info *mi) +{ + struct mem_info *result = mem_info__new(); + + if (result) { + addr_map_symbol__copy(mem_info__iaddr(result), mem_info__iaddr(mi)); + addr_map_symbol__copy(mem_info__daddr(result), mem_info__daddr(mi)); + mem_info__data_src(result)->val = mem_info__data_src(mi)->val; + } + + return result; +} -- cgit v1.3.1