port_posix: use posix_memalign() for aligned_alloc

Summary: to workaround issue of http://tracker.ceph.com/issues/21422 . and in tcmalloc aligned_alloc and posix_memalign() are basically the same thing. the same applies to GNU glibc. fixes facebook#3175 Signed-off-by: Kefu Chai <[email protected]> Closes facebook#3862 Differential Revision: D8147930 Pulled By: yiwu-arbug fbshipit-source-id: 355afe93c4dd0a96a0d711ef190e8b86fbe8d11d
xunnanxu · May 24, 2018 · c465509 · c465509
1 parent 7a99c04
commit c465509
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/port/port_posix.cc b/port/port_posix.cc
@@ -188,8 +188,6 @@ int GetMaxOpenFiles() {
 void *cacheline_aligned_alloc(size_t size) {
 #if __GNUC__ < 5 && defined(__SANITIZE_ADDRESS__)
   return malloc(size);
-#elif defined(_ISOC11_SOURCE)
-  return aligned_alloc(CACHE_LINE_SIZE, size);
 #elif ( _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600 || defined(__APPLE__))
   void *m;
   errno = posix_memalign(&m, CACHE_LINE_SIZE, size);