debugfs: take mode-dependent parts of debugfs_get_inode() into callers

... and trim the arguments list

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index b765c04..61e9a68 100644 (file)
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -34,37 +34,12 @@ static struct vfsmount *debugfs_mount;
 static int debugfs_mount_count;
 static bool debugfs_registered;
 
-static struct inode *debugfs_get_inode(struct super_block *sb, umode_t mode, dev_t dev,
-                                      void *data, const struct file_operations *fops)
-
+static struct inode *debugfs_get_inode(struct super_block *sb)
 {
        struct inode *inode = new_inode(sb);
-
        if (inode) {
                inode->i_ino = get_next_ino();
-               inode->i_mode = mode;
                inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
-               switch (mode & S_IFMT) {
-               default:
-                       init_special_inode(inode, mode, dev);
-                       break;
-               case S_IFREG:
-                       inode->i_fop = fops ? fops : &debugfs_file_operations;
-                       inode->i_private = data;
-                       break;
-               case S_IFLNK:
-                       inode->i_op = &debugfs_link_operations;
-                       inode->i_private = data;
-                       break;
-               case S_IFDIR:
-                       inode->i_op = &simple_dir_inode_operations;
-                       inode->i_fop = &simple_dir_operations;
-
-                       /* directory inodes start off with i_nlink == 2
-                        * (for "." entry) */
-                       inc_nlink(inode);
-                       break;
-               }
        }
        return inode;
 }
@@ -334,10 +309,13 @@ struct dentry *debugfs_create_file(const char *name, umode_t mode,
        if (IS_ERR(dentry))
                return NULL;
 
-       inode = debugfs_get_inode(dentry->d_sb, mode, 0, data, fops);
+       inode = debugfs_get_inode(dentry->d_sb);
        if (unlikely(!inode))
                return end_creating(dentry, -ENOMEM);
 
+       inode->i_mode = mode;
+       inode->i_fop = fops ? fops : &debugfs_file_operations;
+       inode->i_private = data;
        d_instantiate(dentry, inode);
        dget(dentry);
        fsnotify_create(dentry->d_parent->d_inode, dentry);
@@ -371,12 +349,16 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
        if (IS_ERR(dentry))
                return NULL;
 
-       inode = debugfs_get_inode(dentry->d_sb,
-                                 S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO,
-                                 0, NULL, NULL);
+       inode = debugfs_get_inode(dentry->d_sb);
        if (unlikely(!inode))
                return end_creating(dentry, -ENOMEM);
 
+       inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
+       inode->i_op = &simple_dir_inode_operations;
+       inode->i_fop = &simple_dir_operations;
+
+       /* directory inodes start off with i_nlink == 2 (for "." entry) */
+       inc_nlink(inode);
        d_instantiate(dentry, inode);
        dget(dentry);
        inc_nlink(dentry->d_parent->d_inode);
@@ -423,12 +405,14 @@ struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
                return NULL;
        }
 
-       inode = debugfs_get_inode(dentry->d_sb, S_IFLNK | S_IRWXUGO, 0,
-                                 link, NULL);
+       inode = debugfs_get_inode(dentry->d_sb);
        if (unlikely(!inode)) {
                kfree(link);
                return end_creating(dentry, -ENOMEM);
        }
+       inode->i_mode = S_IFLNK | S_IRWXUGO;
+       inode->i_op = &debugfs_link_operations;
+       inode->i_private = link;
        d_instantiate(dentry, inode);
        dget(dentry);
        return end_creating(dentry, 0);