Commit-ID: ce27309f67c347e6e49ebd45042f5362b0ccbdcc Gitweb: http://git.kernel.org/tip/ce27309f67c347e6e49ebd45042f5362b0ccbdcc Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Thu, 11 Dec 2014 13:37:59 -0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Thu, 11 Dec 2014 17:53:04 -0300
perf tools: Use sysctl__read_int instead of ad-hoc copies Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[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/util/record.c | 11 +---------- tools/perf/util/util.c | 9 +-------- 2 files changed, 2 insertions(+), 18 deletions(-) diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c index cf69325..8acd0df 100644 --- a/tools/perf/util/record.c +++ b/tools/perf/util/record.c @@ -137,16 +137,7 @@ void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts) static int get_max_rate(unsigned int *rate) { - char path[PATH_MAX]; - const char *procfs = procfs__mountpoint(); - - if (!procfs) - return -1; - - snprintf(path, PATH_MAX, - "%s/sys/kernel/perf_event_max_sample_rate", procfs); - - return filename__read_int(path, (int *) rate); + return sysctl__read_int("kernel/perf_event_max_sample_rate", (int *)rate); } static int record_opts__config_freq(struct record_opts *opts) diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 41125e5..b86744f 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -506,16 +506,9 @@ const char *get_filename_for_perf_kvm(void) int perf_event_paranoid(void) { - char path[PATH_MAX]; - const char *procfs = procfs__mountpoint(); int value; - if (!procfs) - return INT_MAX; - - scnprintf(path, PATH_MAX, "%s/sys/kernel/perf_event_paranoid", procfs); - - if (filename__read_int(path, &value)) + if (sysctl__read_int("kernel/perf_event_paranoid", &value)) return INT_MAX; return value; -- 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/
