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author | 2022-09-08 10:11:39 +0800 | |
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committer | 2022-10-04 08:55:21 -0300 | |
commit | 0f405f878bc15674e38648121e124a93d0cef9c3 (patch) | |
tree | d7f001eed52690e6503754d94116a09c548aecc5 /tools | |
parent | perf trace: Use zalloc() to save initialization of syscall_stats (diff) | |
download | linux-0f405f878bc15674e38648121e124a93d0cef9c3.tar.gz linux-0f405f878bc15674e38648121e124a93d0cef9c3.tar.bz2 linux-0f405f878bc15674e38648121e124a93d0cef9c3.zip |
perf lock: Add get_key_by_aggr_mode helper
Wrap repeated code in helper functions get_key_by_aggr_mode and
get_key_by_aggr_mode_simple, which assign the value to key based on
aggregation mode. Note that for the conditions not support
LOCK_AGGR_CALLER, should call get_key_by_aggr_mode_simple directly.
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220908021141.27134-3-shangxiaojing@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r-- | tools/perf/builtin-lock.c | 129 |
1 files changed, 53 insertions, 76 deletions
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c index e79ef614105c..52a6a10a610c 100644 --- a/tools/perf/builtin-lock.c +++ b/tools/perf/builtin-lock.c @@ -560,29 +560,50 @@ enum acquire_flags { READ_LOCK = 2, }; -static int report_lock_acquire_event(struct evsel *evsel, - struct perf_sample *sample) +static int get_key_by_aggr_mode_simple(u64 *key, u64 addr, u32 tid) { - struct lock_stat *ls; - struct thread_stat *ts; - struct lock_seq_stat *seq; - const char *name = evsel__strval(evsel, sample, "name"); - u64 addr = evsel__intval(evsel, sample, "lockdep_addr"); - int flag = evsel__intval(evsel, sample, "flags"); - u64 key; - switch (aggr_mode) { case LOCK_AGGR_ADDR: - key = addr; + *key = addr; break; case LOCK_AGGR_TASK: - key = sample->tid; + *key = tid; break; case LOCK_AGGR_CALLER: default: pr_err("Invalid aggregation mode: %d\n", aggr_mode); return -EINVAL; } + return 0; +} + +static u64 callchain_id(struct evsel *evsel, struct perf_sample *sample); + +static int get_key_by_aggr_mode(u64 *key, u64 addr, struct evsel *evsel, + struct perf_sample *sample) +{ + if (aggr_mode == LOCK_AGGR_CALLER) { + *key = callchain_id(evsel, sample); + return 0; + } + return get_key_by_aggr_mode_simple(key, addr, sample->tid); +} + +static int report_lock_acquire_event(struct evsel *evsel, + struct perf_sample *sample) +{ + struct lock_stat *ls; + struct thread_stat *ts; + struct lock_seq_stat *seq; + const char *name = evsel__strval(evsel, sample, "name"); + u64 addr = evsel__intval(evsel, sample, "lockdep_addr"); + int flag = evsel__intval(evsel, sample, "flags"); + u64 key; + int ret; + + ret = get_key_by_aggr_mode_simple(&key, addr, sample->tid); + if (ret < 0) + return ret; ls = lock_stat_findnew(key, name, 0); if (!ls) @@ -653,19 +674,11 @@ static int report_lock_acquired_event(struct evsel *evsel, const char *name = evsel__strval(evsel, sample, "name"); u64 addr = evsel__intval(evsel, sample, "lockdep_addr"); u64 key; + int ret; - switch (aggr_mode) { - case LOCK_AGGR_ADDR: - key = addr; - break; - case LOCK_AGGR_TASK: - key = sample->tid; - break; - case LOCK_AGGR_CALLER: - default: - pr_err("Invalid aggregation mode: %d\n", aggr_mode); - return -EINVAL; - } + ret = get_key_by_aggr_mode_simple(&key, addr, sample->tid); + if (ret < 0) + return ret; ls = lock_stat_findnew(key, name, 0); if (!ls) @@ -726,19 +739,11 @@ static int report_lock_contended_event(struct evsel *evsel, const char *name = evsel__strval(evsel, sample, "name"); u64 addr = evsel__intval(evsel, sample, "lockdep_addr"); u64 key; + int ret; - switch (aggr_mode) { - case LOCK_AGGR_ADDR: - key = addr; - break; - case LOCK_AGGR_TASK: - key = sample->tid; - break; - case LOCK_AGGR_CALLER: - default: - pr_err("Invalid aggregation mode: %d\n", aggr_mode); - return -EINVAL; - } + ret = get_key_by_aggr_mode_simple(&key, addr, sample->tid); + if (ret < 0) + return ret; ls = lock_stat_findnew(key, name, 0); if (!ls) @@ -792,19 +797,11 @@ static int report_lock_release_event(struct evsel *evsel, const char *name = evsel__strval(evsel, sample, "name"); u64 addr = evsel__intval(evsel, sample, "lockdep_addr"); u64 key; + int ret; - switch (aggr_mode) { - case LOCK_AGGR_ADDR: - key = addr; - break; - case LOCK_AGGR_TASK: - key = sample->tid; - break; - case LOCK_AGGR_CALLER: - default: - pr_err("Invalid aggregation mode: %d\n", aggr_mode); - return -EINVAL; - } + ret = get_key_by_aggr_mode_simple(&key, addr, sample->tid); + if (ret < 0) + return ret; ls = lock_stat_findnew(key, name, 0); if (!ls) @@ -1015,21 +1012,11 @@ static int report_lock_contention_begin_event(struct evsel *evsel, struct lock_seq_stat *seq; u64 addr = evsel__intval(evsel, sample, "lock_addr"); u64 key; + int ret; - switch (aggr_mode) { - case LOCK_AGGR_ADDR: - key = addr; - break; - case LOCK_AGGR_TASK: - key = sample->tid; - break; - case LOCK_AGGR_CALLER: - key = callchain_id(evsel, sample); - break; - default: - pr_err("Invalid aggregation mode: %d\n", aggr_mode); - return -EINVAL; - } + ret = get_key_by_aggr_mode(&key, addr, evsel, sample); + if (ret < 0) + return ret; ls = lock_stat_find(key); if (!ls) { @@ -1098,21 +1085,11 @@ static int report_lock_contention_end_event(struct evsel *evsel, u64 contended_term; u64 addr = evsel__intval(evsel, sample, "lock_addr"); u64 key; + int ret; - switch (aggr_mode) { - case LOCK_AGGR_ADDR: - key = addr; - break; - case LOCK_AGGR_TASK: - key = sample->tid; - break; - case LOCK_AGGR_CALLER: - key = callchain_id(evsel, sample); - break; - default: - pr_err("Invalid aggregation mode: %d\n", aggr_mode); - return -EINVAL; - } + ret = get_key_by_aggr_mode(&key, addr, evsel, sample); + if (ret < 0) + return ret; ls = lock_stat_find(key); if (!ls) |