From: Arnaldo Carvalho de Melo <[email protected]> Will be useful for new helpers to read sysctl values.
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]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/lib/api/fs/fs.c | 21 +++++++++++++++++++++ tools/lib/api/fs/fs.h | 2 ++ tools/perf/util/util.c | 17 ----------------- tools/perf/util/util.h | 1 - 4 files changed, 23 insertions(+), 18 deletions(-) diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c index c1b49c36a951..b8d0df8878d1 100644 --- a/tools/lib/api/fs/fs.c +++ b/tools/lib/api/fs/fs.c @@ -7,6 +7,10 @@ #include <stdlib.h> #include <string.h> #include <sys/vfs.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> #include "debugfs.h" #include "fs.h" @@ -163,3 +167,20 @@ const char *name##__mountpoint(void) \ FS__MOUNTPOINT(sysfs, FS__SYSFS); FS__MOUNTPOINT(procfs, FS__PROCFS); + +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; +} diff --git a/tools/lib/api/fs/fs.h b/tools/lib/api/fs/fs.h index cb7049551f33..4d0aef6e7163 100644 --- a/tools/lib/api/fs/fs.h +++ b/tools/lib/api/fs/fs.h @@ -11,4 +11,6 @@ const char *sysfs__mountpoint(void); const char *procfs__mountpoint(void); + +int filename__read_int(const char *filename, int *value); #endif /* __API_FS__ */ 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; diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index abc445ee4f60..008b361b1758 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -343,7 +343,6 @@ char *get_srcline(struct dso *dso, unsigned long addr, struct symbol *sym, bool show_sym); 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); int perf_event_paranoid(void); -- 1.9.3 -- 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/
