vfs: split generic_forget_inode() so that hugetlbfs does not have to copy it

[net-next-2.6.git] / fs / hugetlbfs / inode.c

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index eba6d552d9c901668d7803c5f3a3569bbaab081b..478a169a262dbc28f285d3e7f3bf0358044cd2a7 100644 (file)
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -380,36 +380,11 @@ static void hugetlbfs_delete_inode(struct inode *inode)
 
 static void hugetlbfs_forget_inode(struct inode *inode) __releases(inode_lock)
 {
-       struct super_block *sb = inode->i_sb;
-
-       if (!hlist_unhashed(&inode->i_hash)) {
-               if (!(inode->i_state & (I_DIRTY|I_SYNC)))
-                       list_move(&inode->i_list, &inode_unused);
-               inodes_stat.nr_unused++;
-               if (!sb || (sb->s_flags & MS_ACTIVE)) {
-                       spin_unlock(&inode_lock);
-                       return;
-               }
-               inode->i_state |= I_WILL_FREE;
-               spin_unlock(&inode_lock);
-               /*
-                * write_inode_now is a noop as we set BDI_CAP_NO_WRITEBACK
-                * in our backing_dev_info.
-                */
-               write_inode_now(inode, 1);
-               spin_lock(&inode_lock);
-               inode->i_state &= ~I_WILL_FREE;
-               inodes_stat.nr_unused--;
-               hlist_del_init(&inode->i_hash);
+       if (generic_detach_inode(inode)) {
+               truncate_hugepages(inode, 0);
+               clear_inode(inode);
+               destroy_inode(inode);
        }
-       list_del_init(&inode->i_list);
-       list_del_init(&inode->i_sb_list);
-       inode->i_state |= I_FREEING;
-       inodes_stat.nr_inodes--;
-       spin_unlock(&inode_lock);
-       truncate_hugepages(inode, 0);
-       clear_inode(inode);
-       destroy_inode(inode);
 }
 
 static void hugetlbfs_drop_inode(struct inode *inode)