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authorMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>2014-08-14 02:22:36 +0000
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-08-15 10:58:35 -0300
commit6e81c74cbf4b64620170da14844f1dc8a9a5950f (patch)
treece4d4d23f34959965a4cae5e48355de1b40f4063 /tools/perf/util/data.c
parent5f03cba41590b5e7db5b66d2b2aa3e146ff8a84f (diff)
perf util: Replace strerror with strerror_r for thread-safety
Replaces all strerror with strerror_r in util for making the perf lib thread-safe. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naohiro Aota <naota@elisp.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20140814022236.3545.3367.stgit@kbuild-fedora.novalocal Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/data.c')
-rw-r--r--tools/perf/util/data.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index 29d720cf5844..1921942fc2e0 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -50,12 +50,14 @@ static int open_file_read(struct perf_data_file *file)
{
struct stat st;
int fd;
+ char sbuf[STRERR_BUFSIZE];
fd = open(file->path, O_RDONLY);
if (fd < 0) {
int err = errno;
- pr_err("failed to open %s: %s", file->path, strerror(err));
+ pr_err("failed to open %s: %s", file->path,
+ strerror_r(err, sbuf, sizeof(sbuf)));
if (err == ENOENT && !strcmp(file->path, "perf.data"))
pr_err(" (try 'perf record' first)");
pr_err("\n");
@@ -88,6 +90,7 @@ static int open_file_read(struct perf_data_file *file)
static int open_file_write(struct perf_data_file *file)
{
int fd;
+ char sbuf[STRERR_BUFSIZE];
if (check_backup(file))
return -1;
@@ -95,7 +98,8 @@ static int open_file_write(struct perf_data_file *file)
fd = open(file->path, O_CREAT|O_RDWR|O_TRUNC, S_IRUSR|S_IWUSR);
if (fd < 0)
- pr_err("failed to open %s : %s\n", file->path, strerror(errno));
+ pr_err("failed to open %s : %s\n", file->path,
+ strerror_r(errno, sbuf, sizeof(sbuf)));
return fd;
}