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Date: Tue, 23 Aug 2022 15:09:08 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Darren Hart <dvhart@...radead.org>,
Davidlohr Bueso <dave@...olabs.net>,
"André Almeida" <andrealmeid@...lia.com>,
Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Tom Rix <trix@...hat.com>, Weiguo Li <liwg06@...mail.com>,
Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
Thomas Richter <tmricht@...ux.ibm.com>,
Ravi Bangoria <ravi.bangoria@....com>,
Dario Petrillo <dario.pk1@...il.com>,
Hewenliang <hewenliang4@...wei.com>,
yaowenbin <yaowenbin1@...wei.com>,
Wenyu Liu <liuwenyu7@...wei.com>,
Song Liu <songliubraving@...com>,
Andrii Nakryiko <andrii@...nel.org>,
Dave Marchevsky <davemarchevsky@...com>,
Leo Yan <leo.yan@...aro.org>,
Kim Phillips <kim.phillips@....com>,
Pavithra Gurushankar <gpavithrasha@...il.com>,
Alexandre Truong <alexandre.truong@....com>,
Quentin Monnet <quentin@...valent.com>,
William Cohen <wcohen@...hat.com>,
Andres Freund <andres@...razel.de>,
Adrian Hunter <adrian.hunter@...el.com>,
"Martin Liška" <mliska@...e.cz>,
Colin Ian King <colin.king@...el.com>,
James Clark <james.clark@....com>,
Fangrui Song <maskray@...gle.com>,
Stephane Eranian <eranian@...gle.com>,
Kajol Jain <kjain@...ux.ibm.com>,
Alexey Bayduraev <alexey.v.bayduraev@...ux.intel.com>,
Riccardo Mancini <rickyman7@...il.com>,
Andi Kleen <ak@...ux.intel.com>,
Masami Hiramatsu <mhiramat@...nel.org>,
Zechuan Chen <chenzechuan1@...wei.com>,
Jason Wang <wangborong@...rlc.com>,
Christophe JAILLET <christophe.jaillet@...adoo.fr>,
Remi Bernon <rbernon@...eweavers.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
bpf@...r.kernel.org, llvm@...ts.linux.dev
Cc: Ian Rogers <irogers@...gle.com>
Subject: [PATCH v2 04/18] perf hist: Update use of pthread mutex
Switch to the use of mutex wrappers that provide better error checking.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/builtin-top.c | 8 ++++----
tools/perf/util/hist.c | 6 +++---
tools/perf/util/hist.h | 4 ++--
3 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index fd8fd913c533..14e60f6f219c 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -220,7 +220,7 @@ static void perf_top__record_precise_ip(struct perf_top *top,
* This function is now called with he->hists->lock held.
* Release it before going to sleep.
*/
- pthread_mutex_unlock(&he->hists->lock);
+ mutex_unlock(&he->hists->lock);
if (err == -ERANGE && !he->ms.map->erange_warned)
ui__warn_map_erange(he->ms.map, sym, ip);
@@ -230,7 +230,7 @@ static void perf_top__record_precise_ip(struct perf_top *top,
sleep(1);
}
- pthread_mutex_lock(&he->hists->lock);
+ mutex_lock(&he->hists->lock);
}
}
@@ -836,12 +836,12 @@ static void perf_event__process_sample(struct perf_tool *tool,
else
iter.ops = &hist_iter_normal;
- pthread_mutex_lock(&hists->lock);
+ mutex_lock(&hists->lock);
if (hist_entry_iter__add(&iter, &al, top->max_stack, top) < 0)
pr_err("Problem incrementing symbol period, skipping event\n");
- pthread_mutex_unlock(&hists->lock);
+ mutex_unlock(&hists->lock);
}
addr_location__put(&al);
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 1c085ab56534..bfce88e5eb0d 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1622,13 +1622,13 @@ struct rb_root_cached *hists__get_rotate_entries_in(struct hists *hists)
{
struct rb_root_cached *root;
- pthread_mutex_lock(&hists->lock);
+ mutex_lock(&hists->lock);
root = hists->entries_in;
if (++hists->entries_in > &hists->entries_in_array[1])
hists->entries_in = &hists->entries_in_array[0];
- pthread_mutex_unlock(&hists->lock);
+ mutex_unlock(&hists->lock);
return root;
}
@@ -2805,7 +2805,7 @@ int __hists__init(struct hists *hists, struct perf_hpp_list *hpp_list)
hists->entries_in = &hists->entries_in_array[0];
hists->entries_collapsed = RB_ROOT_CACHED;
hists->entries = RB_ROOT_CACHED;
- pthread_mutex_init(&hists->lock, NULL);
+ mutex_init(&hists->lock, /*pshared=*/false);
hists->socket_filter = -1;
hists->hpp_list = hpp_list;
INIT_LIST_HEAD(&hists->hpp_formats);
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 7ed4648d2fc2..508428b2c1b2 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -4,10 +4,10 @@
#include <linux/rbtree.h>
#include <linux/types.h>
-#include <pthread.h>
#include "evsel.h"
#include "color.h"
#include "events_stats.h"
+#include "mutex.h"
struct hist_entry;
struct hist_entry_ops;
@@ -98,7 +98,7 @@ struct hists {
const struct dso *dso_filter;
const char *uid_filter_str;
const char *symbol_filter_str;
- pthread_mutex_t lock;
+ struct mutex lock;
struct hists_stats stats;
u64 event_stream;
u16 col_len[HISTC_NR_COLS];
--
2.37.2.609.g9ff673ca1a-goog
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