From 16cad1d3597d32e470a4115f11c5e61cce6cd81b Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Thu, 2 Feb 2023 18:13:23 -0800 Subject: perf lock contention: Use lock_stat_find{,new} This is a preparation work to support complex keys of BPF maps. Now it has single value key according to the aggregation mode like stack_id or pid. But we want to use a combination of those keys. Then lock_contention_read() should still aggregate the result based on the key that was requested by user. The other key info will be used for filtering. So instead of creating a lock_stat entry always, Check if it's already there using lock_stat_find() first. Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Hao Luo Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Juri Lelli Cc: Peter Zijlstra Cc: Song Liu Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20230203021324.143540-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/lock-contention.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'tools/perf/util/lock-contention.h') diff --git a/tools/perf/util/lock-contention.h b/tools/perf/util/lock-contention.h index 17e594d57a61..39d5bfc77f4e 100644 --- a/tools/perf/util/lock-contention.h +++ b/tools/perf/util/lock-contention.h @@ -65,6 +65,9 @@ struct lock_stat { */ #define MAX_LOCK_DEPTH 48 +struct lock_stat *lock_stat_find(u64 addr); +struct lock_stat *lock_stat_findnew(u64 addr, const char *name, int flags); + /* * struct lock_seq_stat: * Place to put on state of one lock sequence -- cgit