diff options
| -rw-r--r-- | include/net/af_unix.h | 3 | ||||
| -rw-r--r-- | net/unix/garbage.c | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/net/af_unix.h b/include/net/af_unix.h index 16d6936baa2f..e7d71a516bd4 100644 --- a/include/net/af_unix.h +++ b/include/net/af_unix.h @@ -79,6 +79,9 @@ enum unix_socket_lock_class { U_LOCK_NORMAL, U_LOCK_SECOND, /* for double locking, see unix_state_double_lock(). */ U_LOCK_DIAG, /* used while dumping icons, see sk_diag_dump_icons(). */ + U_LOCK_GC_LISTENER, /* used for listening socket while determining gc + * candidates to close a small race window. + */ }; static inline void unix_state_lock_nested(struct sock *sk, diff --git a/net/unix/garbage.c b/net/unix/garbage.c index 85c6f05c0fa3..d2fc795394a5 100644 --- a/net/unix/garbage.c +++ b/net/unix/garbage.c @@ -260,7 +260,7 @@ void unix_gc(void) __set_bit(UNIX_GC_MAYBE_CYCLE, &u->gc_flags); if (sk->sk_state == TCP_LISTEN) { - unix_state_lock(sk); + unix_state_lock_nested(sk, U_LOCK_GC_LISTENER); unix_state_unlock(sk); } } |