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>

diff --git a/fs/inode.c b/fs/inode.c
index 78c41c6..430d70f 100644 (file)
--- 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);

diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index ec858e0..71d83c9 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -760,7 +760,9 @@ xfs_setup_inode(
 
        inode->i_ino = ip->i_ino;
        inode->i_state = I_NEW;
-       inode_add_to_lists(ip->i_mount->m_super, inode);
+
+       inode_sb_list_add(inode);
+       insert_inode_hash(inode);
 
        inode->i_mode   = ip->i_d.di_mode;
        inode->i_nlink  = ip->i_d.di_nlink;

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 876275f..d43e8b6 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2171,7 +2171,6 @@ extern loff_t vfs_llseek(struct file *file, loff_t offset, int origin);
 
 extern int inode_init_always(struct super_block *, struct inode *);
 extern void inode_init_once(struct inode *);
-extern void inode_add_to_lists(struct super_block *, struct inode *);
 extern void iput(struct inode *);
 extern struct inode * igrab(struct inode *);
 extern ino_t iunique(struct super_block *, ino_t);
@@ -2202,9 +2201,11 @@ extern int file_remove_suid(struct file *);
 
 extern void __insert_inode_hash(struct inode *, unsigned long hashval);
 extern void remove_inode_hash(struct inode *);
-static inline void insert_inode_hash(struct inode *inode) {
+static inline void insert_inode_hash(struct inode *inode)
+{
        __insert_inode_hash(inode, inode->i_ino);
 }
+extern void inode_sb_list_add(struct inode *inode);
 
 #ifdef CONFIG_BLOCK
 extern void submit_bio(int, struct bio *);