From 97e747df2591f082b4a3964ac5ff784f0ff181f1 Mon Sep 17 00:00:00 2001
From: Nick Piggin <npiggin@suse.de>
Date: Fri, 29 Jan 2010 15:38:27 -0800
Subject: fs-inode_lock-scale-2

Add a new lock, inode_hash_lock, to protect the inode hash table lists.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 include/linux/writeback.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/linux/writeback.h')

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 544363be9933..5b9178fbb261 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -11,6 +11,7 @@ struct backing_dev_info;
 
 extern spinlock_t inode_lock;
 extern spinlock_t sb_inode_list_lock;
+extern spinlock_t inode_hash_lock;
 extern struct list_head inode_in_use;
 extern struct list_head inode_unused;
 
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