perf record: Rename --no-delay to --no-buffering

That is how the option summary describes it and so that we can free
--delay to replace --initial-delay and then be consistent with stat's
--delay equivalent option.

Suggested-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-f8hd2010uhjl2zzb34hepbmi@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

7 files changed, 12 insertions, 13 deletions

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 82bffac036e1..3a35a8523e6d 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -68,8 +68,7 @@ OPTIONS
 --realtime=::
         Collect data with this RT SCHED_FIFO priority.
 
--D::
---no-delay::
+--no-buffering::
         Collect data without buffering.
 
 -c::
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 07d4cf8d3fd3..78e790f4c54f 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -838,7 +838,7 @@ const struct option record_options[] = {
                     "record events on existing thread id"),
         OPT_INTEGER('r', "realtime", &record.realtime_prio,
                     "collect data with this RT SCHED_FIFO priority"),
-        OPT_BOOLEAN('D', "no-delay", &record.opts.no_delay,
+        OPT_BOOLEAN(0, "no-buffering", &record.opts.no_buffering,
                     "collect data without buffering"),
         OPT_BOOLEAN('R', "raw-samples", &record.opts.raw_samples,
                     "collect raw sample records from all opened counters"),
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 4bd44aba343e..896f27047ed6 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2258,7 +2258,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
                         },
                         .user_freq     = UINT_MAX,
                         .user_interval = ULLONG_MAX,
-                        .no_delay      = true,
+                        .no_buffering  = true,
                         .mmap_pages    = 1024,
                 },
                 .output = stdout,
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index af1ce6e14a93..3c2f213e979d 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -252,7 +252,7 @@ struct record_opts {
         int          call_graph;
         bool         group;
         bool         inherit_stat;
-        bool         no_delay;
+        bool         no_buffering;
         bool         no_inherit;
         bool         no_inherit_set;
         bool         no_samples;
diff --git a/tools/perf/tests/open-syscall-tp-fields.c b/tools/perf/tests/open-syscall-tp-fields.c
index 5a016f66f5d2..c505ef2af245 100644
--- a/tools/perf/tests/open-syscall-tp-fields.c
+++ b/tools/perf/tests/open-syscall-tp-fields.c
@@ -11,10 +11,10 @@ int test__syscall_open_tp_fields(void)
                         .uid = UINT_MAX,
                         .uses_mmap = true,
                 },
-                .no_delay   = true,
-                .freq       = 1,
-                .mmap_pages = 256,
-                .raw_samples = true,
+                .no_buffering = true,
+                .freq         = 1,
+                .mmap_pages   = 256,
+                .raw_samples  = true,
         };
         const char *filename = "/etc/passwd";
         int flags = O_RDONLY | O_DIRECTORY;
diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index 39cc7c3c0d0c..aca1a83dd13a 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -39,9 +39,9 @@ int test__PERF_RECORD(void)
                         .uid = UINT_MAX,
                         .uses_mmap = true,
                 },
-                .no_delay   = true,
-                .freq       = 10,
-                .mmap_pages = 256,
+                .no_buffering = true,
+                .freq         = 10,
+                .mmap_pages   = 256,
         };
         cpu_set_t cpu_mask;
         size_t cpu_mask_size = sizeof(cpu_mask);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index cd4630abfa43..22e18a26b7e6 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -627,7 +627,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
         if (opts->sample_address)
                 perf_evsel__set_sample_bit(evsel, DATA_SRC);
 
-        if (opts->no_delay) {
+        if (opts->no_buffering) {
                 attr->watermark = 0;
                 attr->wakeup_events = 1;
         }