tools lib fs: Adopt debugfs open strerrno method
As this is not specific to an evlist and may be used with other tools.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-a9up9mivx1pzdf5tqrqsx62d@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/include/asm/hash.h
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 258f655..2f82dd7 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2062,8 +2062,15 @@
perf_evlist__add_vfs_getname(evlist);
if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
- perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ))
+ perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) {
+ /*
+ * FIXME: This one needs better error handling, as by now we
+ * already checked that debugfs is mounted and that we have access to it,
+ * so probably the case is that something is busted wrt this specific
+ * software event, ditto for the next gotos to out_error_tp...
+ */
goto out_error_tp;
+ }
if ((trace->trace_pgfaults & TRACE_PFMIN) &&
perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN))
@@ -2203,7 +2210,7 @@
char errbuf[BUFSIZ];
out_error_tp:
- perf_evlist__strerror_tp(evlist, errno, errbuf, sizeof(errbuf));
+ debugfs__strerror_open(errno, errbuf, sizeof(errbuf));
goto out_error;
out_error_mmap: