tools lib fs: Adopt filename__read_int from tools/perf/

Will be useful for new helpers to read sysctl values.

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: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 0 insertions, 17 deletions

diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index d5eab3f3323f..41125e5b011e 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -442,23 +442,6 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
         return (unsigned long) -1;
 }
 
-int filename__read_int(const char *filename, int *value)
-{
-        char line[64];
-        int fd = open(filename, O_RDONLY), err = -1;
-
-        if (fd < 0)
-                return -1;
-
-        if (read(fd, line, sizeof(line)) > 0) {
-                *value = atoi(line);
-                err = 0;
-        }
-
-        close(fd);
-        return err;
-}
-
 int filename__read_str(const char *filename, char **buf, size_t *sizep)
 {
         size_t size = 0, alloc_size = 0;