/* * Builtin evlist command: Show the list of event selectors present * in a perf.data file. */ #include "builtin.h" #include "util/util.h" #include #include "perf.h" #include "util/evlist.h" #include "util/evsel.h" #include "util/parse-events.h" #include #include "util/session.h" #include "util/data.h" #include "util/debug.h" static int __cmd_evlist(const char *file_name, struct perf_attr_details *details) { struct perf_session *session; struct perf_evsel *pos; struct perf_data_file file = { .path = file_name, .mode = PERF_DATA_MODE_READ, .force = details->force, }; bool has_tracepoint = false; session = perf_session__new(&file, 0, NULL); if (session == NULL) return -1; evlist__for_each_entry(session->evlist, pos) { perf_evsel__fprintf(pos, details, stdout); if (pos->attr.type == PERF_TYPE_TRACEPOINT) has_tracepoint = true; } if (has_tracepoint && !details->trace_fields) printf("# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events\n"); perf_session__delete(session); return 0; } int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused) { struct perf_attr_details details = { .verbose = false, }; const struct option options[] = { OPT_STRING('i', "input", &input_name, "file", "Input file name"), OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"), OPT_BOOLEAN('v', "verbose", &details.verbose, "Show all event attr details"), OPT_BOOLEAN('g', "group", &details.event_group, "Show event group information"), OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"), OPT_BOOLEAN(0, "trace-fields", &details.trace_fields, "Show tracepoint fields"), OPT_END() }; const char * const evlist_usage[] = { "perf evlist []", NULL }; argc = parse_options(argc, argv, options, evlist_usage, 0); if (argc) usage_with_options(evlist_usage, options); if (details.event_group && (details.verbose || details.freq)) { usage_with_options_msg(evlist_usage, options, "--group option is not compatible with other options\n"); } return __cmd_evlist(input_name, &details); } ='hidden' name='id' value='4205e4786d0b9fc3b4fec7b1910cf645a0468307'/>
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authorThomas Gleixner <tglx@linutronix.de>2017-01-10 14:01:05 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-16 13:20:05 +0100
commit4205e4786d0b9fc3b4fec7b1910cf645a0468307 (patch)
tree685ccb486409197b936c785eb9d173c3edff45a1 /sound/oss
parent7e164ce4e8ecd7e9a58a83750bd3ee03125df154 (diff)
cpu/hotplug: Provide dynamic range for prepare stage
Mathieu reported that the LTTNG modules are broken as of 4.10-rc1 due to the removal of the cpu hotplug notifiers. Usually I don't care much about out of tree modules, but LTTNG is widely used in distros. There are two ways to solve that: 1) Reserve a hotplug state for LTTNG 2) Add a dynamic range for the prepare states. While #1 is the simplest solution, #2 is the proper one as we can convert in tree users, which do not care about ordering, to the dynamic range as well. Add a dynamic range which allows LTTNG to request states in the prepare stage. Reported-and-tested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Sewior <bigeasy@linutronix.de> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701101353010.3401@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'sound/oss')