--- zzzz-none-000/linux-3.10.107/net/unix/garbage.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/net/unix/garbage.c	2021-02-04 17:41:59.000000000 +0000
@@ -95,31 +95,25 @@
 
 unsigned int unix_tot_inflight;
 
-
 struct sock *unix_get_socket(struct file *filp)
 {
 	struct sock *u_sock = NULL;
 	struct inode *inode = file_inode(filp);
 
-	/*
-	 *	Socket ?
-	 */
+	/* Socket ? */
 	if (S_ISSOCK(inode->i_mode) && !(filp->f_mode & FMODE_PATH)) {
 		struct socket *sock = SOCKET_I(inode);
 		struct sock *s = sock->sk;
 
-		/*
-		 *	PF_UNIX ?
-		 */
+		/* PF_UNIX ? */
 		if (s && sock->ops && sock->ops->family == PF_UNIX)
 			u_sock = s;
 	}
 	return u_sock;
 }
 
-/*
- *	Keep the number of times in flight count for the file
- *	descriptor if it is for an AF_UNIX socket.
+/* Keep the number of times in flight count for the file
+ * descriptor if it is for an AF_UNIX socket.
  */
 
 void unix_inflight(struct user_struct *user, struct file *fp)
@@ -154,6 +148,7 @@
 
 		BUG_ON(!atomic_long_read(&u->inflight));
 		BUG_ON(list_empty(&u->link));
+
 		if (atomic_long_dec_and_test(&u->inflight))
 			list_del_init(&u->link);
 		unix_tot_inflight--;
@@ -170,32 +165,27 @@
 
 	spin_lock(&x->sk_receive_queue.lock);
 	skb_queue_walk_safe(&x->sk_receive_queue, skb, next) {
-		/*
-		 *	Do we have file descriptors ?
-		 */
+		/* Do we have file descriptors ? */
 		if (UNIXCB(skb).fp) {
 			bool hit = false;
-			/*
-			 *	Process the descriptors of this socket
-			 */
+			/* Process the descriptors of this socket */
 			int nfd = UNIXCB(skb).fp->count;
 			struct file **fp = UNIXCB(skb).fp->fp;
+
 			while (nfd--) {
-				/*
-				 *	Get the socket the fd matches
-				 *	if it indeed does so
-				 */
+				/* Get the socket the fd matches if it indeed does so */
 				struct sock *sk = unix_get_socket(*fp++);
+
 				if (sk) {
 					struct unix_sock *u = unix_sk(sk);
 
-					/*
-					 * Ignore non-candidates, they could
+					/* Ignore non-candidates, they could
 					 * have been added to the queues after
 					 * starting the garbage collection
 					 */
 					if (test_bit(UNIX_GC_CANDIDATE, &u->gc_flags)) {
 						hit = true;
+
 						func(u);
 					}
 				}
@@ -212,24 +202,22 @@
 static void scan_children(struct sock *x, void (*func)(struct unix_sock *),
 			  struct sk_buff_head *hitlist)
 {
-	if (x->sk_state != TCP_LISTEN)
+	if (x->sk_state != TCP_LISTEN) {
 		scan_inflight(x, func, hitlist);
-	else {
+	} else {
 		struct sk_buff *skb;
 		struct sk_buff *next;
 		struct unix_sock *u;
 		LIST_HEAD(embryos);
 
-		/*
-		 * For a listening socket collect the queued embryos
+		/* For a listening socket collect the queued embryos
 		 * and perform a scan on them as well.
 		 */
 		spin_lock(&x->sk_receive_queue.lock);
 		skb_queue_walk_safe(&x->sk_receive_queue, skb, next) {
 			u = unix_sk(skb->sk);
 
-			/*
-			 * An embryo cannot be in-flight, so it's safe
+			/* An embryo cannot be in-flight, so it's safe
 			 * to use the list link.
 			 */
 			BUG_ON(!list_empty(&u->link));
@@ -258,8 +246,7 @@
 static void inc_inflight_move_tail(struct unix_sock *u)
 {
 	atomic_long_inc(&u->inflight);
-	/*
-	 * If this still might be part of a cycle, move it to the end
+	/* If this still might be part of a cycle, move it to the end
 	 * of the list, so that it's checked even if it was already
 	 * passed over
 	 */
@@ -267,13 +254,12 @@
 		list_move_tail(&u->link, &gc_candidates);
 }
 
-static bool gc_in_progress = false;
+static bool gc_in_progress;
 #define UNIX_INFLIGHT_TRIGGER_GC 16000
 
 void wait_for_unix_gc(void)
 {
-	/*
-	 * If number of inflight sockets is insane,
+	/* If number of inflight sockets is insane,
 	 * force a garbage collect right now.
 	 */
 	if (unix_tot_inflight > UNIX_INFLIGHT_TRIGGER_GC && !gc_in_progress)
@@ -297,8 +283,7 @@
 		goto out;
 
 	gc_in_progress = true;
-	/*
-	 * First, select candidates for garbage collection.  Only
+	/* First, select candidates for garbage collection.  Only
 	 * in-flight sockets are considered, and from those only ones
 	 * which don't have any external reference.
 	 *
@@ -329,15 +314,13 @@
 		}
 	}
 
-	/*
-	 * Now remove all internal in-flight reference to children of
+	/* Now remove all internal in-flight reference to children of
 	 * the candidates.
 	 */
 	list_for_each_entry(u, &gc_candidates, link)
 		scan_children(&u->sk, dec_inflight, NULL);
 
-	/*
-	 * Restore the references for children of all candidates,
+	/* Restore the references for children of all candidates,
 	 * which have remaining references.  Do this recursively, so
 	 * only those remain, which form cyclic references.
 	 *
@@ -367,8 +350,7 @@
 	list_for_each_entry(u, &gc_candidates, link)
 		scan_children(&u->sk, inc_inflight, &hitlist);
 
-	/*
-	 * not_cycle_list contains those sockets which do not make up a
+	/* not_cycle_list contains those sockets which do not make up a
 	 * cycle.  Restore these to the inflight list.
 	 */
 	while (!list_empty(&not_cycle_list)) {