fs: remove inode_add_to_list/__inode_add_to_list

Split up inode_add_to_list/__inode_add_to_list.  Locking for the two
lists will be split soon so these helpers really don't buy us much
anymore.

The __ prefixes for the sb list helpers will go away soon, but until
inode_lock is gone we'll need them to distinguish between the locked
and unlocked variants.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 32 insertions, 38 deletions

diff --git a/fs/inode.c b/fs/inode.c
index 78c41c626cdc..430d70f2abe7 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -336,6 +336,28 @@ static void inode_lru_list_del(struct inode *inode)
         }
 }
 
+static inline void __inode_sb_list_add(struct inode *inode)
+{
+        list_add(&inode->i_sb_list, &inode->i_sb->s_inodes);
+}
+
+/**
+ * inode_sb_list_add - add inode to the superblock list of inodes
+ * @inode: inode to add
+ */
+void inode_sb_list_add(struct inode *inode)
+{
+        spin_lock(&inode_lock);
+        __inode_sb_list_add(inode);
+        spin_unlock(&inode_lock);
+}
+EXPORT_SYMBOL_GPL(inode_sb_list_add);
+
+static inline void __inode_sb_list_del(struct inode *inode)
+{
+        list_del_init(&inode->i_sb_list);
+}
+
 static unsigned long hash(struct super_block *sb, unsigned long hashval)
 {
         unsigned long tmp;
@@ -356,9 +378,10 @@ static unsigned long hash(struct super_block *sb, unsigned long hashval)
  */
 void __insert_inode_hash(struct inode *inode, unsigned long hashval)
 {
-        struct hlist_head *head = inode_hashtable + hash(inode->i_sb, hashval);
+        struct hlist_head *b = inode_hashtable + hash(inode->i_sb, hashval);
+
         spin_lock(&inode_lock);
-        hlist_add_head(&inode->i_hash, head);
+        hlist_add_head(&inode->i_hash, b);
         spin_unlock(&inode_lock);
 }
 EXPORT_SYMBOL(__insert_inode_hash);
@@ -436,7 +459,7 @@ static void dispose_list(struct list_head *head)
 
                 spin_lock(&inode_lock);
                 __remove_inode_hash(inode);
-                list_del_init(&inode->i_sb_list);
+                __inode_sb_list_del(inode);
                 spin_unlock(&inode_lock);
 
                 wake_up_inode(inode);
@@ -685,37 +708,6 @@ repeat:
         return NULL;
 }
 
-static inline void
-__inode_add_to_lists(struct super_block *sb, struct hlist_head *head,
-                        struct inode *inode)
-{
-        list_add(&inode->i_sb_list, &sb->s_inodes);
-        if (head)
-                hlist_add_head(&inode->i_hash, head);
-}
-
-/**
- * inode_add_to_lists - add a new inode to relevant lists
- * @sb: superblock inode belongs to
- * @inode: inode to mark in use
- *
- * When an inode is allocated it needs to be accounted for, added to the in use
- * list, the owning superblock and the inode hash. This needs to be done under
- * the inode_lock, so export a function to do this rather than the inode lock
- * itself. We calculate the hash list to add to here so it is all internal
- * which requires the caller to have already set up the inode number in the
- * inode to add.
- */
-void inode_add_to_lists(struct super_block *sb, struct inode *inode)
-{
-        struct hlist_head *head = inode_hashtable + hash(sb, inode->i_ino);
-
-        spin_lock(&inode_lock);
-        __inode_add_to_lists(sb, head, inode);
-        spin_unlock(&inode_lock);
-}
-EXPORT_SYMBOL_GPL(inode_add_to_lists);
-
 /**
  *      new_inode       - obtain an inode
  *      @sb: superblock
@@ -743,7 +735,7 @@ struct inode *new_inode(struct super_block *sb)
         inode = alloc_inode(sb);
         if (inode) {
                 spin_lock(&inode_lock);
-                __inode_add_to_lists(sb, NULL, inode);
+                __inode_sb_list_add(inode);
                 inode->i_ino = ++last_ino;
                 inode->i_state = 0;
                 spin_unlock(&inode_lock);
@@ -812,7 +804,8 @@ static struct inode *get_new_inode(struct super_block *sb,
                         if (set(inode, data))
                                 goto set_failed;
 
-                        __inode_add_to_lists(sb, head, inode);
+                        hlist_add_head(&inode->i_hash, head);
+                        __inode_sb_list_add(inode);
                         inode->i_state = I_NEW;
                         spin_unlock(&inode_lock);
 
@@ -858,7 +851,8 @@ static struct inode *get_new_inode_fast(struct super_block *sb,
                 old = find_inode_fast(sb, head, ino);
                 if (!old) {
                         inode->i_ino = ino;
-                        __inode_add_to_lists(sb, head, inode);
+                        hlist_add_head(&inode->i_hash, head);
+                        __inode_sb_list_add(inode);
                         inode->i_state = I_NEW;
                         spin_unlock(&inode_lock);
 
@@ -1318,7 +1312,7 @@ static void iput_final(struct inode *inode)
          */
         inode_lru_list_del(inode);
 
-        list_del_init(&inode->i_sb_list);
+        __inode_sb_list_del(inode);
         spin_unlock(&inode_lock);
         evict(inode);
         remove_inode_hash(inode);