From 6212e3a388fdda3f19fa660ef5a30edf54d1dcfd Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Thu, 18 Oct 2007 03:04:56 -0700
Subject: Remove struct task_struct::io_wait

Hell knows what happened in commit 63b05203af57e7de4f3bb63b8b81d43bc196d32b
during 2.6.9 development.  Commit introduced io_wait field which remained
write-only than and still remains write-only.

Also garbage collect macros which "use" io_wait.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/fork.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'kernel')

diff --git a/kernel/fork.c b/kernel/fork.c
index 7e455a93a75..125246fc75a 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1084,7 +1084,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	p->security = NULL;
 #endif
 	p->io_context = NULL;
-	p->io_wait = NULL;
 	p->audit_context = NULL;
 	cpuset_fork(p);
 #ifdef CONFIG_NUMA
-- 
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