From 21d71f513b6221f482ed6ad45e05f073ae67f319 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 10 Jul 2006 04:45:32 -0700
Subject: [PATCH] uninline init_waitqueue_head()

allyesconfig vmlinux size delta:

  text            data    bss     dec          filename
  20736884        6073834 3075176 29885894     vmlinux.before
  20721009        6073966 3075176 29870151     vmlinux.after

~18 bytes per callsite, 15K of text size (~0.1%) saved.

(as an added bonus this also removes a lockdep annotation.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/wait.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'kernel')

diff --git a/kernel/wait.c b/kernel/wait.c
index a1d57aeb7f7..59a82f63275 100644
--- a/kernel/wait.c
+++ b/kernel/wait.c
@@ -10,9 +10,13 @@
 #include <linux/wait.h>
 #include <linux/hash.h>
 
-struct lock_class_key waitqueue_lock_key;
+void init_waitqueue_head(wait_queue_head_t *q)
+{
+	spin_lock_init(&q->lock);
+	INIT_LIST_HEAD(&q->task_list);
+}
 
-EXPORT_SYMBOL(waitqueue_lock_key);
+EXPORT_SYMBOL(init_waitqueue_head);
 
 void fastcall add_wait_queue(wait_queue_head_t *q, wait_queue_t *wait)
 {
-- 
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