diff options
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | malloc/arena.c | 7 |
2 files changed, 8 insertions, 3 deletions
@@ -1,3 +1,7 @@ +2015-12-23 Florian Weimer <fweimer@redhat.com> + + * malloc/arena.c (list_lock): Update comment. + 2015-12-22 Carlos Eduardo Seo <cseo@linux.vnet.ibm.com> * sysdeps/powerpc/hwcapinfo.c: Export symbol diff --git a/malloc/arena.c b/malloc/arena.c index 85f119474b..665be5ec35 100644 --- a/malloc/arena.c +++ b/malloc/arena.c @@ -85,9 +85,10 @@ static mstate free_list; _int_new_arena. This suffers from data races; see the FIXME comments in _int_new_arena and reused_arena. - list_lock also prevents concurrent forks. When list_lock is - acquired, no arena lock must be acquired, but it is permitted to - acquire arena locks after list_lock. */ + list_lock also prevents concurrent forks. At the time list_lock is + acquired, no arena lock must have been acquired, but it is + permitted to acquire arena locks subsequently, while list_lock is + acquired. */ static mutex_t list_lock = _LIBC_LOCK_INITIALIZER; /* Mapped memory in non-main arenas (reliable only for NO_THREADS). */ |