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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-08 11:31:24 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-05-12 11:26:58 -0300 |
commit | 7839b9f32e45075d9eb48da8480faef3dbd019f0 (patch) | |
tree | 23da316ea6b21f006b94452c812d7e77ebbee0bf /tools/perf/util/parse-events.c | |
parent | 9a5f3bf332bbd42625b71553ca9ffdffa9fc4785 (diff) |
perf thread_map: Use readdir() instead of deprecated readdir_r()
The readdir() function is thread safe as long as just one thread uses a
DIR, which is the case in thread_map, so, to avoid breaking the build
with glibc-2.23.90 (upcoming 2.24), use it instead of readdir_r().
See: http://man7.org/linux/man-pages/man3/readdir.3.html
"However, in modern implementations (including the glibc implementation),
concurrent calls to readdir() that specify different directory streams
are thread-safe. In cases where multiple threads must read from the
same directory stream, using readdir() with external synchronization is
still preferable to the use of the deprecated readdir_r(3) function."
Noticed while building on a Fedora Rawhide docker container.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-del8h2a0f40z75j4r42l96l0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/parse-events.c')
0 files changed, 0 insertions, 0 deletions