The code in builtin-kvm.c to generate filename for perf-kvm is useful to other command such as builtin-diff.
This patch move the related code form builtin-kvm.c to util/util.c and wrap them in a function named get_filename_for_perf_kvm. Signed-off-by: Dongsheng Yang <[email protected]> --- tools/perf/builtin-kvm.c | 7 +------ tools/perf/util/util.c | 14 ++++++++++++++ tools/perf/util/util.h | 2 ++ 3 files changed, 17 insertions(+), 6 deletions(-) diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index f8bf5f2..143ad99 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -1711,12 +1711,7 @@ int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused) perf_guest = 1; if (!file_name) { - if (perf_host && !perf_guest) - file_name = strdup("perf.data.host"); - else if (!perf_host && perf_guest) - file_name = strdup("perf.data.guest"); - else - file_name = strdup("perf.data.kvm"); + file_name = get_filename_for_perf_kvm(); if (!file_name) { pr_err("Failed to allocate memory for filename\n"); diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index bae8756..4a57609 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -482,3 +482,17 @@ int filename__read_str(const char *filename, char **buf, size_t *sizep) close(fd); return err; } + +const char *get_filename_for_perf_kvm(void) +{ + const char *filename; + + if (perf_host && !perf_guest) + filename = strdup("perf.data.host"); + else if (!perf_host && perf_guest) + filename = strdup("perf.data.guest"); + else + filename = strdup("perf.data.kvm"); + + return filename; +} diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index adb39f2..e6d8796 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -309,4 +309,6 @@ void free_srcline(char *srcline); int filename__read_int(const char *filename, int *value); int filename__read_str(const char *filename, char **buf, size_t *sizep); + +const char *get_filename_for_perf_kvm(void); #endif /* GIT_COMPAT_UTIL_H */ -- 1.8.2.1 -- 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/
