From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Jiri Olsa <jolsa@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>, David Ahern <dsahern@gmail.com>,
Namhyung Kim <namhyung@kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 19/27] perf: Update PERF_RECORD_MISC_* comment for perf_event_header::misc bit 13
Date: Wed, 10 Jan 2018 18:28:36 -0300 [thread overview]
Message-ID: <20180110212844.12441-20-acme@kernel.org> (raw)
In-Reply-To: <20180110212844.12441-1-acme@kernel.org>
From: Jiri Olsa <jolsa@kernel.org>
The perf_event_header::misc bit 13 is shared on different events and
next patch is adding yet another bit 13 user. Updating the comment to
make it more structured and clear which events use bit 13.
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20180107160356.28203-8-jolsa@kernel.org
[ Update the tools/include/uapi/linux copy ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
include/uapi/linux/perf_event.h | 9 ++++++---
tools/include/uapi/linux/perf_event.h | 9 ++++++---
2 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 8bb66e8da945..c77c9a2ebbbb 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -612,9 +612,12 @@ struct perf_event_mmap_page {
*/
#define PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT (1 << 12)
/*
- * PERF_RECORD_MISC_MMAP_DATA and PERF_RECORD_MISC_COMM_EXEC are used on
- * different events so can reuse the same bit position.
- * Ditto PERF_RECORD_MISC_SWITCH_OUT.
+ * Following PERF_RECORD_MISC_* are used on different
+ * events, so can reuse the same bit position:
+ *
+ * PERF_RECORD_MISC_MMAP_DATA - PERF_RECORD_MMAP* events
+ * PERF_RECORD_MISC_COMM_EXEC - PERF_RECORD_COMM event
+ * PERF_RECORD_MISC_SWITCH_OUT - PERF_RECORD_SWITCH* events
*/
#define PERF_RECORD_MISC_MMAP_DATA (1 << 13)
#define PERF_RECORD_MISC_COMM_EXEC (1 << 13)
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 8bb66e8da945..c77c9a2ebbbb 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -612,9 +612,12 @@ struct perf_event_mmap_page {
*/
#define PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT (1 << 12)
/*
- * PERF_RECORD_MISC_MMAP_DATA and PERF_RECORD_MISC_COMM_EXEC are used on
- * different events so can reuse the same bit position.
- * Ditto PERF_RECORD_MISC_SWITCH_OUT.
+ * Following PERF_RECORD_MISC_* are used on different
+ * events, so can reuse the same bit position:
+ *
+ * PERF_RECORD_MISC_MMAP_DATA - PERF_RECORD_MMAP* events
+ * PERF_RECORD_MISC_COMM_EXEC - PERF_RECORD_COMM event
+ * PERF_RECORD_MISC_SWITCH_OUT - PERF_RECORD_SWITCH* events
*/
#define PERF_RECORD_MISC_MMAP_DATA (1 << 13)
#define PERF_RECORD_MISC_COMM_EXEC (1 << 13)
--
2.14.3
next prev parent reply other threads:[~2018-01-10 21:28 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-10 21:28 [GIT PULL 00/27] perf/core improvements and fixes Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 01/27] perf test bpf: Improve message about expected samples Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 02/27] perf test bpf: Use designated struct field initializers Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 03/27] perf test bpf: Hook on epoll_pwait() Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 04/27] perf tools: Fix compile error with libunwind x86 Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 05/27] perf report: Fix a wrong offset issue when using /proc/kcore Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 06/27] perf report: Fix a no annotate browser displayed issue Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 07/27] perf header: Add infrastructure to record first and last sample time Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 08/27] perf record: Record the first and last sample time in the header Arnaldo Carvalho de Melo
2018-01-11 13:29 ` Paul Clarke
2018-01-11 14:46 ` Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 09/27] perf tools: Create function to parse time percent Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 10/27] perf tools: Create function to perform multiple time range checking Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 11/27] perf report: Support time percent and multiple time ranges Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 12/27] perf script: " Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 13/27] perf tools: Enable LIBBABELTRACE by default Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 14/27] perf tools: Display perf_event_attr::namespaces debug info Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 15/27] perf: Allocate context task_ctx_data for child event Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 16/27] perf: Add sample_id to PERF_RECORD_ITRACE_START event comment Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 17/27] perf: Make perf_callchain function static Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 18/27] perf: Return empty callchain instead of NULL Arnaldo Carvalho de Melo
2018-01-10 21:28 ` Arnaldo Carvalho de Melo [this message]
2018-01-10 21:28 ` [PATCH 20/27] perf script: Add support to display sample misc field Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 21/27] perf script: Add support to display lost events Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 22/27] perf tools: Make the tool's warning messages optional Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 23/27] perf report: Add --stats option to display quick data statistics Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 24/27] perf trace: Beautify 'gettid' syscall result Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 25/27] perf report: Add --tasks option to display monitored tasks Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 26/27] perf report: Introduce --mmaps Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 27/27] tools headers: Synchronize kernel <-> tooling headers Arnaldo Carvalho de Melo
2018-01-11 5:54 ` [GIT PULL 00/27] perf/core improvements and fixes Ingo Molnar
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