Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/drivers/char/pty.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff -puN drivers/char/pty.c~pty_write-latency-fix drivers/char/pty.c
--- 25/drivers/char/pty.c~pty_write-latency-fix 2004-07-13 23:54:55.891614544 -0700
+++ 25-akpm/drivers/char/pty.c 2004-07-13 23:55:35.539587136 -0700
@@ -126,7 +126,8 @@ static int pty_write(struct tty_struct *
n = to->ldisc.receive_room(to);
if (n > count)
n = count;
- if (!n) break;
+ if (!n)
+ break;
n = min(n, PTY_BUF_SIZE);
n -= copy_from_user(temp_buffer, buf, n);
@@ -140,11 +141,13 @@ static int pty_write(struct tty_struct *
room = to->ldisc.receive_room(to);
if (n > room)
n = room;
- if (!n) break;
+ if (!n)
+ break;
buf += n;
c += n;
count -= n;
to->ldisc.receive_buf(to, temp_buffer, NULL, n);
+ cond_resched();
}
up(&tty->flip.pty_sem);
} else {
_