+static int record__mmap_evlist(struct record *rec,
+ struct perf_evlist *evlist)
+{
+ struct record_opts *opts = &rec->opts;
+ char msg[512];
+
+ if (perf_evlist__mmap_ex(evlist, opts->mmap_pages, false,
+ opts->auxtrace_mmap_pages,
+ opts->auxtrace_snapshot_mode) < 0) {
+ if (errno == EPERM) {
+ pr_err("Permission error mapping pages.\n"
+ "Consider increasing "
+ "/proc/sys/kernel/perf_event_mlock_kb,\n"
+ "or try again with a smaller value of -m/--mmap_pages.\n"
+ "(current value: %u,%u)\n",
+ opts->mmap_pages, opts->auxtrace_mmap_pages);
+ return -errno;
+ } else {
+ pr_err("failed to mmap with %d (%s)\n", errno,
+ strerror_r(errno, msg, sizeof(msg)));
+ if (errno)
+ return -errno;
+ else
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static int record__mmap(struct record *rec)
+{
+ return record__mmap_evlist(rec, rec->evlist);
+}
+