diff options
Diffstat (limited to 'tools/perf')
-rw-r--r-- | tools/perf/util/bpf_skel/lock_contention.bpf.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/tools/perf/util/bpf_skel/lock_contention.bpf.c b/tools/perf/util/bpf_skel/lock_contention.bpf.c index 23f6e63544ed..8911e2a077d8 100644 --- a/tools/perf/util/bpf_skel/lock_contention.bpf.c +++ b/tools/perf/util/bpf_skel/lock_contention.bpf.c @@ -418,6 +418,14 @@ int contention_end(u64 *ctx) extern struct rq runqueues __ksym; +struct rq__old { + raw_spinlock_t lock; +} __attribute__((preserve_access_index)); + +struct rq__new { + raw_spinlock_t __lock; +} __attribute__((preserve_access_index)); + SEC("raw_tp/bpf_test_finish") int BPF_PROG(collect_lock_syms) { @@ -426,11 +434,16 @@ int BPF_PROG(collect_lock_syms) for (int i = 0; i < MAX_CPUS; i++) { struct rq *rq = bpf_per_cpu_ptr(&runqueues, i); + struct rq__new *rq_new = (void *)rq; + struct rq__old *rq_old = (void *)rq; if (rq == NULL) break; - lock_addr = (__u64)&rq->__lock; + if (bpf_core_field_exists(rq_new->__lock)) + lock_addr = (__u64)&rq_new->__lock; + else + lock_addr = (__u64)&rq_old->lock; lock_flag = LOCK_CLASS_RQLOCK; bpf_map_update_elem(&lock_syms, &lock_addr, &lock_flag, BPF_ANY); } |