X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=fs%2Finode.c;h=ed35383d0b6c4f9b53fcc536da045cacfaf6c123;hb=73b0c0b0c1fa06acc3a02a58f301b0db0818d3d0;hp=29f5068f819b604b61a8a5b542ff3acbe70cc200;hpb=939ab20152390c8ccccfa6fac0830405ca91d903;p=linux-2.6-omap-h63xx.git

diff --git a/fs/inode.c b/fs/inode.c
index 29f5068f819..ed35383d0b6 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -99,6 +99,15 @@ struct inodes_stat_t inodes_stat;
 
 static struct kmem_cache * inode_cachep __read_mostly;
 
+static void wake_up_inode(struct inode *inode)
+{
+	/*
+	 * Prevent speculative execution through spin_unlock(&inode_lock);
+	 */
+	smp_mb();
+	wake_up_bit(&inode->i_state, __I_LOCK);
+}
+
 static struct inode *alloc_inode(struct super_block *sb)
 {
 	static const struct address_space_operations empty_aops;
@@ -142,6 +151,15 @@ static struct inode *alloc_inode(struct super_block *sb)
 			return NULL;
 		}
 
+		spin_lock_init(&inode->i_lock);
+		lockdep_set_class(&inode->i_lock, &sb->s_type->i_lock_key);
+
+		mutex_init(&inode->i_mutex);
+		lockdep_set_class(&inode->i_mutex, &sb->s_type->i_mutex_key);
+
+		init_rwsem(&inode->i_alloc_sem);
+		lockdep_set_class(&inode->i_alloc_sem, &sb->s_type->i_alloc_sem_key);
+
 		mapping->a_ops = &empty_aops;
  		mapping->host = inode;
 		mapping->flags = 0;
@@ -190,8 +208,6 @@ void inode_init_once(struct inode *inode)
 	INIT_HLIST_NODE(&inode->i_hash);
 	INIT_LIST_HEAD(&inode->i_dentry);
 	INIT_LIST_HEAD(&inode->i_devices);
-	mutex_init(&inode->i_mutex);
-	init_rwsem(&inode->i_alloc_sem);
 	INIT_RADIX_TREE(&inode->i_data.page_tree, GFP_ATOMIC);
 	rwlock_init(&inode->i_data.tree_lock);
 	spin_lock_init(&inode->i_data.i_mmap_lock);
@@ -199,7 +215,6 @@ void inode_init_once(struct inode *inode)
 	spin_lock_init(&inode->i_data.private_lock);
 	INIT_RAW_PRIO_TREE_ROOT(&inode->i_data.i_mmap);
 	INIT_LIST_HEAD(&inode->i_data.i_mmap_nonlinear);
-	spin_lock_init(&inode->i_lock);
 	i_size_ordered_init(inode);
 #ifdef CONFIG_INOTIFY
 	INIT_LIST_HEAD(&inode->inotify_watches);
@@ -209,7 +224,7 @@ void inode_init_once(struct inode *inode)
 
 EXPORT_SYMBOL(inode_init_once);
 
-static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
+static void init_once(struct kmem_cache * cachep, void *foo)
 {
 	struct inode * inode = (struct inode *) foo;
 
@@ -226,7 +241,7 @@ void __iget(struct inode * inode)
 		return;
 	}
 	atomic_inc(&inode->i_count);
-	if (!(inode->i_state & (I_DIRTY|I_LOCK)))
+	if (!(inode->i_state & (I_DIRTY|I_SYNC)))
 		list_move(&inode->i_list, &inode_in_use);
 	inodes_stat.nr_unused--;
 }
@@ -247,7 +262,7 @@ void clear_inode(struct inode *inode)
 	BUG_ON(inode->i_data.nrpages);
 	BUG_ON(!(inode->i_state & I_FREEING));
 	BUG_ON(inode->i_state & I_CLEAR);
-	wait_on_inode(inode);
+	inode_sync_wait(inode);
 	DQUOT_DROP(inode);
 	if (inode->i_sb->s_op->clear_inode)
 		inode->i_sb->s_op->clear_inode(inode);
@@ -561,6 +576,18 @@ EXPORT_SYMBOL(new_inode);
 
 void unlock_new_inode(struct inode *inode)
 {
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+	if (inode->i_mode & S_IFDIR) {
+		struct file_system_type *type = inode->i_sb->s_type;
+
+		/*
+		 * ensure nobody is actually holding i_mutex
+		 */
+		mutex_destroy(&inode->i_mutex);
+		mutex_init(&inode->i_mutex);
+		lockdep_set_class(&inode->i_mutex, &type->i_mutex_dir_key);
+	}
+#endif
 	/*
 	 * This is special!  We do not need the spinlock
 	 * when clearing I_LOCK, because we're guaranteed
@@ -1053,7 +1080,7 @@ static void generic_forget_inode(struct inode *inode)
 	struct super_block *sb = inode->i_sb;
 
 	if (!hlist_unhashed(&inode->i_hash)) {
-		if (!(inode->i_state & (I_DIRTY|I_LOCK)))
+		if (!(inode->i_state & (I_DIRTY|I_SYNC)))
 			list_move(&inode->i_list, &inode_unused);
 		inodes_stat.nr_unused++;
 		if (sb->s_flags & MS_ACTIVE) {
@@ -1296,15 +1323,6 @@ static void __wait_on_freeing_inode(struct inode *inode)
 	spin_lock(&inode_lock);
 }
 
-void wake_up_inode(struct inode *inode)
-{
-	/*
-	 * Prevent speculative execution through spin_unlock(&inode_lock);
-	 */
-	smp_mb();
-	wake_up_bit(&inode->i_state, __I_LOCK);
-}
-
 /*
  * We rarely want to lock two inodes that do not have a parent/child
  * relationship (such as directory, child inode) simultaneously. The
@@ -1378,7 +1396,7 @@ void __init inode_init_early(void)
 		INIT_HLIST_HEAD(&inode_hashtable[loop]);
 }
 
-void __init inode_init(unsigned long mempages)
+void __init inode_init(void)
 {
 	int loop;