From: Alexey Bayduraev <alexey.v.bayduraev@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>,
linux-kernel <linux-kernel@vger.kernel.org>,
Andi Kleen <ak@linux.intel.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Alexander Antonov <alexander.antonov@linux.intel.com>,
Alexei Budankov <abudankov@huawei.com>,
Riccardo Mancini <rickyman7@gmail.com>
Subject: [PATCH v9 04/24] perf record: Introduce function to propagate control commands
Date: Fri, 2 Jul 2021 15:32:12 +0300 [thread overview]
Message-ID: <260a6766bbed13b530060e8231ba8ddfecc8f795.1625227739.git.alexey.v.bayduraev@linux.intel.com> (raw)
In-Reply-To: <cover.1625227739.git.alexey.v.bayduraev@linux.intel.com>
Introduce evlist__ctlfd_update() function to propagate external control
commands to global evlist object.
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
---
tools/perf/util/evlist.c | 16 ++++++++++++++++
tools/perf/util/evlist.h | 1 +
2 files changed, 17 insertions(+)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 6ba9664089bd..3d555a98c037 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -2132,6 +2132,22 @@ int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd)
return err;
}
+int evlist__ctlfd_update(struct evlist *evlist, struct pollfd *update)
+{
+ int ctlfd_pos = evlist->ctl_fd.pos;
+ struct pollfd *entries = evlist->core.pollfd.entries;
+
+ if (!evlist__ctlfd_initialized(evlist))
+ return 0;
+
+ if (entries[ctlfd_pos].fd != update->fd ||
+ entries[ctlfd_pos].events != update->events)
+ return -1;
+
+ entries[ctlfd_pos].revents = update->revents;
+ return 0;
+}
+
struct evsel *evlist__find_evsel(struct evlist *evlist, int idx)
{
struct evsel *evsel;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 2073cfa79f79..b7aa719c638d 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -358,6 +358,7 @@ void evlist__close_control(int ctl_fd, int ctl_fd_ack, bool *ctl_fd_close);
int evlist__initialize_ctlfd(struct evlist *evlist, int ctl_fd, int ctl_fd_ack);
int evlist__finalize_ctlfd(struct evlist *evlist);
bool evlist__ctlfd_initialized(struct evlist *evlist);
+int evlist__ctlfd_update(struct evlist *evlist, struct pollfd *update);
int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd);
int evlist__ctlfd_ack(struct evlist *evlist);
--
2.19.0
next prev parent reply other threads:[~2021-07-02 12:32 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-02 12:32 [PATCH v9 00/24] Introduce threaded trace streaming for basic perf record operation Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 01/24] perf record: Introduce thread affinity and mmap masks Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 02/24] tools lib: Introduce fdarray clone function Alexey Bayduraev
2021-07-02 18:15 ` Arnaldo Carvalho de Melo
2021-07-02 12:32 ` [PATCH v9 03/24] perf record: Introduce thread specific data array Alexey Bayduraev
2021-07-02 12:32 ` Alexey Bayduraev [this message]
2021-07-02 12:32 ` [PATCH v9 05/24] perf record: Introduce thread local variable Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 06/24] perf record: Stop threads in the end of trace streaming Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 07/24] perf record: Start threads in the beginning " Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 08/24] perf record: Introduce data file at mmap buffer object Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 09/24] perf record: Introduce bytes written stats to support --max-size option Alexey Bayduraev
2021-07-09 5:38 ` Namhyung Kim
2021-07-02 12:32 ` [PATCH v9 10/24] perf record: Introduce data transferred and compressed stats Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 11/24] perf record: Init data file at mmap buffer object Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 12/24] perf record: Introduce --threads command line option Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 13/24] perf record: Extend " Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 14/24] perf record: Implement compatibility checks Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 15/24] perf report: Output non-zero offset for decompressed records Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 16/24] perf report: Output data file name in raw trace dump Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 17/24] perf session: Move reader structure to the top Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 18/24] perf session: Introduce reader_state in reader object Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 19/24] perf session: Introduce reader objects in session object Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 20/24] perf session: Introduce decompressor into trace reader object Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 21/24] perf session: Move init into reader__init function Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 22/24] perf session: Move map/unmap into reader__mmap function Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 23/24] perf session: Load single file for analysis Alexey Bayduraev
2021-07-02 12:32 ` [PATCH v9 24/24] perf session: Load data directory files " Alexey Bayduraev
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