From 9c1729db3e6d738f872bcb090212af00473bf666 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@redhat.com>
Date: Sun, 15 Jul 2007 23:39:43 -0700
Subject: [PATCH] Prevent an O_NDELAY writer from blocking when a tty write is
 blocked by the tty atomic writer mutex

Without this a tty write could block if a previous blocking tty write was
in progress on the same tty and blocked by a line discipline or hardware
event.  Originally found and reported by Dave Johnson.

Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Dave Johnson <djohnson+linux-kernel@sw.starentnetworks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
Reading git-format-patch failed