btrfs_dirty_inode

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 57 insertions, 5 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 820d21ee4afd..905b093a85fe 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -242,6 +242,7 @@ static void reada_leaves(struct btrfs_root *root, struct btrfs_path *path)
         }
 
 }
+
 static int btrfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 {
         struct inode *inode = filp->f_path.dentry->d_inode;
@@ -392,6 +393,51 @@ static void fill_inode_item(struct btrfs_inode_item *item,
         btrfs_set_inode_generation(item, inode->i_generation);
 }
 
+static int btrfs_update_inode(struct btrfs_trans_handle *trans,
+                              struct btrfs_root *root,
+                              struct inode *inode)
+{
+        struct btrfs_inode_item *inode_item;
+        struct btrfs_path path;
+        int ret;
+
+        btrfs_init_path(&path);
+
+        ret = btrfs_lookup_inode(trans, root, &path, inode->i_ino, 1);
+        if (ret) {
+                if (ret > 0)
+                        ret = -ENOENT;
+                goto failed;
+        }
+
+        inode_item = btrfs_item_ptr(btrfs_buffer_leaf(path.nodes[0]),
+                                  path.slots[0],
+                                  struct btrfs_inode_item);
+
+        fill_inode_item(inode_item, inode);
+        mark_buffer_dirty(path.nodes[0]);
+failed:
+        btrfs_release_path(root, &path);
+        return 0;
+}
+
+static int btrfs_write_inode(struct inode *inode, int wait)
+{
+        struct btrfs_root *root = btrfs_sb(inode->i_sb);
+        struct btrfs_trans_handle *trans;
+        int ret;
+
+        mutex_lock(&root->fs_info->fs_mutex);
+        trans = btrfs_start_transaction(root, 1);
+        ret = btrfs_update_inode(trans, root, inode);
+        if (wait)
+                btrfs_commit_transaction(trans, root);
+        else
+                btrfs_end_transaction(trans, root);
+        mutex_unlock(&root->fs_info->fs_mutex);
+        return ret;
+}
+
 static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
                                      struct inode *dir, int mode)
 {
@@ -415,9 +461,6 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
         inode->i_ino = objectid;
         inode->i_blocks = 0;
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
-        /* FIXME do this on link */
-        if (mode & S_IFDIR)
-                inode->i_size = 3;
         fill_inode_item(&inode_item, inode);
 
         key.objectid = objectid;
@@ -431,7 +474,6 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
         BUG_ON(ret);
 
         insert_inode_hash(inode);
-        // FIXME mark_inode_dirty(inode)
         return inode;
 }
 
@@ -443,6 +485,12 @@ static int btrfs_add_link(struct btrfs_trans_handle *trans,
                                     dentry->d_name.name, dentry->d_name.len,
                                     dentry->d_parent->d_inode->i_ino,
                                     inode->i_ino, 0);
+        if (ret == 0) {
+                dentry->d_parent->d_inode->i_size += dentry->d_name.len;
+                ret = btrfs_update_inode(trans, btrfs_sb(inode->i_sb),
+                                         dentry->d_parent->d_inode);
+        }
+
         return ret;
 }
 
@@ -502,6 +550,10 @@ static int btrfs_make_empty_dir(struct btrfs_trans_handle *trans,
                 goto error;
         ret = btrfs_insert_dir_item(trans, root, buf, 2, inode->i_ino,
                                     dir->i_ino, 1);
+        if (ret)
+                goto error;
+        inode->i_size = 3;
+        ret = btrfs_update_inode(trans, root, inode);
 error:
         return ret;
 }
@@ -536,7 +588,6 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         if (err)
                 goto out_fail;
         d_instantiate(dentry, inode);
-        mark_inode_dirty(inode);
         drop_on_err = 0;
 
 out_fail:
@@ -600,6 +651,7 @@ static struct super_operations btrfs_super_ops = {
         .read_inode     = btrfs_read_locked_inode,
         .write_super    = btrfs_write_super,
         .sync_fs        = btrfs_sync_fs,
+        .write_inode    = btrfs_write_inode,
 };
 
 static struct inode_operations btrfs_dir_inode_operations = {