perf record: Rename perf.data to perf.data.old if --force/-f is used
Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260828571-3613-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -421,10 +421,19 @@ static int __cmd_record(int argc, const char **argv)
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signal(SIGINT, sig_handler);
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if (!stat(output_name, &st) && st.st_size) {
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if (!force && !append_file) {
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fprintf(stderr, "Error, output file %s exists, use -A to append or -f to overwrite.\n",
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output_name);
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exit(-1);
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if (!force) {
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if (!append_file) {
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pr_err("Error, output file %s exists, use -A "
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"to append or -f to overwrite.\n",
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output_name);
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exit(-1);
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}
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} else {
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char oldname[PATH_MAX];
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snprintf(oldname, sizeof(oldname), "%s.old",
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output_name);
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unlink(oldname);
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rename(output_name, oldname);
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}
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} else {
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append_file = 0;
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