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From: Alexey Budankov <alexey.budankov@linux.intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>, Andi Kleen <ak@linux.intel.com>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH v8 02/13] perf evlist: introduce control file descriptors
Date: Wed, 17 Jun 2020 11:35:56 +0300	[thread overview]
Message-ID: <a26fbe26-081d-b82c-eeeb-b562e3c7a8d3@linux.intel.com> (raw)
In-Reply-To: <0781a077-aa82-5b4a-273e-c17372a72b93@linux.intel.com>


Define and initialize control file descriptors.

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
---
 tools/perf/util/evlist.c | 3 +++
 tools/perf/util/evlist.h | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 173b4f0e0e6e..47541b5cab46 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -63,6 +63,9 @@ void evlist__init(struct evlist *evlist, struct perf_cpu_map *cpus,
 	perf_evlist__set_maps(&evlist->core, cpus, threads);
 	evlist->workload.pid = -1;
 	evlist->bkw_mmap_state = BKW_MMAP_NOTREADY;
+	evlist->ctl_fd.fd = -1;
+	evlist->ctl_fd.ack = -1;
+	evlist->ctl_fd.pos = -1;
 }
 
 struct evlist *evlist__new(void)
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index b6f325dfb4d2..0d8b361f1c8e 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -74,6 +74,11 @@ struct evlist {
 		pthread_t		th;
 		volatile int		done;
 	} thread;
+	struct {
+		int	fd;
+		int	ack;
+		int	pos;
+	} ctl_fd;
 };
 
 struct evsel_str_handler {
-- 
2.24.1



  parent reply	other threads:[~2020-06-17  8:36 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-17  8:30 [PATCH v8 00/13] perf: support enable and disable commands in stat and record modes Alexey Budankov
2020-06-17  8:35 ` [PATCH v8 01/13] tools/libperf: avoid moving of fds at fdarray__filter() call Alexey Budankov
2020-06-24 17:19   ` Alexey Budankov
2020-06-25 17:14     ` Jiri Olsa
2020-06-25 19:32       ` Alexey Budankov
2020-06-26  9:37         ` Jiri Olsa
2020-06-26 10:06           ` Alexey Budankov
2020-06-29 15:11             ` Alexey Budankov
2020-06-29 19:17               ` Jiri Olsa
2020-06-17  8:35 ` Alexey Budankov [this message]
2020-06-17  8:36 ` [PATCH v8 03/13] perf evlist: implement control command handling functions Alexey Budankov
2020-06-23 14:56   ` Jiri Olsa
2020-06-23 15:03     ` Arnaldo Carvalho de Melo
2020-06-23 15:14       ` Jiri Olsa
2020-06-24 13:35         ` Alexey Budankov
2020-06-23 14:56   ` Jiri Olsa
2020-06-24 13:20     ` Alexey Budankov
2020-06-17  8:37 ` [PATCH v8 04/13] perf stat: factor out body of event handling loop for system wide Alexey Budankov
2020-06-23 14:56   ` Jiri Olsa
2020-06-24 14:27     ` Alexey Budankov
2020-06-25 12:17       ` Jiri Olsa
2020-06-25 16:01         ` Alexey Budankov
2020-06-25 17:13           ` Jiri Olsa
2020-06-25 18:43             ` Alexey Budankov
2020-06-17  8:38 ` [PATCH v8 05/13] perf stat: move target check to loop control statement Alexey Budankov
2020-06-17  8:39 ` [PATCH v8 06/13] perf stat: factor out body of event handling loop for fork case Alexey Budankov
2020-06-17  8:40 ` [PATCH v8 07/13] perf stat: factor out event handling loop into dispatch_events() Alexey Budankov
2020-06-23 14:56   ` Jiri Olsa
2020-06-24 13:27     ` Alexey Budankov
2020-06-17  8:40 ` [PATCH v8 08/13] perf stat: extend -D,--delay option with -1 value Alexey Budankov
2020-06-17  8:41 ` [PATCH v8 09/13] perf stat: implement control commands handling Alexey Budankov
2020-06-23 14:54   ` Jiri Olsa
2020-06-24 14:10     ` Alexey Budankov
2020-06-25 12:14       ` Jiri Olsa
2020-06-25 14:58         ` Alexey Budankov
2020-06-23 14:54   ` Jiri Olsa
2020-06-24 13:39     ` Alexey Budankov
2020-06-25 12:12       ` Jiri Olsa
2020-06-25 14:52         ` Alexey Budankov
2020-06-17  8:42 ` [PATCH v8 10/13] perf stat: introduce --control fd:ctl-fd[,ack-fd] options Alexey Budankov
2020-06-17  8:42 ` [PATCH v8 11/13] perf record: extend -D,--delay option with -1 value Alexey Budankov
2020-06-17  8:43 ` [PATCH v8 12/13] perf record: implement control commands handling Alexey Budankov
2020-06-23 14:54   ` Jiri Olsa
2020-06-24 14:00     ` Alexey Budankov
2020-06-24 14:55       ` Alexey Budankov
2020-06-25 17:07         ` Jiri Olsa
2020-06-17  8:44 ` [PATCH v8 13/13] perf record: introduce --control fd:ctl-fd[,ack-fd] options Alexey Budankov
2020-06-22  3:38 ` [PATCH v8 00/13] perf: support enable and disable commands in stat and record modes Alexey Budankov
2020-06-22  8:55   ` Jiri Olsa

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