Commit-ID: 08c987763ad3bc1aef133bcac073198ff86efa85 Gitweb: http://git.kernel.org/tip/08c987763ad3bc1aef133bcac073198ff86efa85 Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Tue, 4 Aug 2015 17:01:04 -0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Wed, 5 Aug 2015 10:52:32 -0300
perf trace: Remember if the vfs_getname tracepoint/kprobe is in place So that we can later decide if we will store where to expand the pathname once we are handling vfs_getname or if we should instead just go on and straight away print the pointer. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Milian Wolff <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/builtin-trace.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 3cfca93..aa1e288 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1312,6 +1312,7 @@ struct trace { bool show_tool_stats; bool trace_syscalls; bool force; + bool vfs_getname; int trace_pgfaults; }; @@ -2188,19 +2189,20 @@ static int trace__record(struct trace *trace, int argc, const char **argv) static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); -static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist) +static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist) { struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname"); if (evsel == NULL) - return; + return false; if (perf_evsel__field(evsel, "pathname") == NULL) { perf_evsel__delete(evsel); - return; + return false; } evsel->handler = trace__vfs_getname; perf_evlist__add(evlist, evsel); + return true; } static int perf_evlist__add_pgfault(struct perf_evlist *evlist, @@ -2330,7 +2332,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv) goto out_error_raw_syscalls; if (trace->trace_syscalls) - perf_evlist__add_vfs_getname(evlist); + trace->vfs_getname = perf_evlist__add_vfs_getname(evlist); if ((trace->trace_pgfaults & TRACE_PFMAJ) && perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
