X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fchar%2Ftty_io.c;h=b1f9a1582dd7d4be0ef363eeda933c7416bfd369;hb=9453a5adaf32aa0b31d1491819a083d403f645c1;hp=811dadb9ce3ed1204437126742a3b170cabfcaa9;hpb=9ae21d1bb376436285cd5346d3e4b3655d6dd1b9;p=karo-tx-linux.git

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 811dadb9ce3e..b1f9a1582dd7 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -351,10 +351,10 @@ int tty_buffer_request_room(struct tty_struct *tty, size_t size)
 	spin_unlock_irqrestore(&tty->buf.lock, flags);
 	return size;
 }
-
 EXPORT_SYMBOL_GPL(tty_buffer_request_room);
 
-int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size)
+int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars,
+				size_t size)
 {
 	int copied = 0;
 	do {
@@ -368,17 +368,16 @@ int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, s
 		tb->used += space;
 		copied += space;
 		chars += space;
-/* 		printk("Flip insert %d.\n", space); */
 	}
 	/* There is a small chance that we need to split the data over
 	   several buffers. If this is the case we must loop */
 	while (unlikely(size > copied));
 	return copied;
 }
+EXPORT_SYMBOL(tty_insert_flip_string);
 
-EXPORT_SYMBOL_GPL(tty_insert_flip_string);
-
-int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size)
+int tty_insert_flip_string_flags(struct tty_struct *tty,
+		const unsigned char *chars, const char *flags, size_t size)
 {
 	int copied = 0;
 	do {
@@ -399,9 +398,20 @@ int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *ch
 	while (unlikely(size > copied));
 	return copied;
 }
-
 EXPORT_SYMBOL_GPL(tty_insert_flip_string_flags);
 
+void tty_schedule_flip(struct tty_struct *tty)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&tty->buf.lock, flags);
+	if (tty->buf.tail != NULL) {
+		tty->buf.tail->active = 0;
+		tty->buf.tail->commit = tty->buf.tail->used;
+	}
+	spin_unlock_irqrestore(&tty->buf.lock, flags);
+	schedule_delayed_work(&tty->buf.work, 1);
+}
+EXPORT_SYMBOL(tty_schedule_flip);
 
 /*
  *	Prepare a block of space in the buffer for data. Returns the length
@@ -1094,8 +1104,8 @@ static void do_tty_hangup(void *data)
 				p->signal->tty = NULL;
 			if (!p->signal->leader)
 				continue;
-			send_group_sig_info(SIGHUP, SEND_SIG_PRIV, p);
-			send_group_sig_info(SIGCONT, SEND_SIG_PRIV, p);
+			group_send_sig_info(SIGHUP, SEND_SIG_PRIV, p);
+			group_send_sig_info(SIGCONT, SEND_SIG_PRIV, p);
 			if (tty->pgrp > 0)
 				p->signal->tty_old_pgrp = tty->pgrp;
 		} while_each_task_pid(tty->session, PIDTYPE_SID, p);
@@ -2185,6 +2195,7 @@ static int ptmx_open(struct inode * inode, struct file * filp)
 		return 0;
 out1:
 	release_dev(filp);
+	return retval;
 out:
 	down(&allocated_ptys_lock);
 	idr_remove(&allocated_ptys, index);
@@ -2672,7 +2683,7 @@ static void __do_SAK(void *arg)
 	tty_hangup(tty);
 #else
 	struct tty_struct *tty = arg;
-	struct task_struct *p;
+	struct task_struct *g, *p;
 	int session;
 	int		i;
 	struct file	*filp;
@@ -2693,8 +2704,18 @@ static void __do_SAK(void *arg)
 		tty->driver->flush_buffer(tty);
 	
 	read_lock(&tasklist_lock);
+	/* Kill the entire session */
 	do_each_task_pid(session, PIDTYPE_SID, p) {
-		if (p->signal->tty == tty || session > 0) {
+		printk(KERN_NOTICE "SAK: killed process %d"
+			" (%s): p->signal->session==tty->session\n",
+			p->pid, p->comm);
+		send_sig(SIGKILL, p, 1);
+	} while_each_task_pid(session, PIDTYPE_SID, p);
+	/* Now kill any processes that happen to have the
+	 * tty open.
+	 */
+	do_each_thread(g, p) {
+		if (p->signal->tty == tty) {
 			printk(KERN_NOTICE "SAK: killed process %d"
 			    " (%s): p->signal->session==tty->session\n",
 			    p->pid, p->comm);
@@ -2721,7 +2742,7 @@ static void __do_SAK(void *arg)
 			rcu_read_unlock();
 		}
 		task_unlock(p);
-	} while_each_task_pid(session, PIDTYPE_SID, p);
+	} while_each_thread(g, p);
 	read_unlock(&tasklist_lock);
 #endif
 }