diff options
Diffstat (limited to 'malloc/arena.c')
| -rw-r--r-- | malloc/arena.c | 7 |
1 files changed, 4 insertions, 3 deletions
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). */ |