UBUNTU: Ubuntu-2.6.38-12.51

[linux-flexiantxendom0-natty.git] / security / inode.c

diff --git a/security/inode.c b/security/inode.c
index f7496c6..c4df2fb 100644 (file)
--- a/security/inode.c
+++ b/security/inode.c
@@ -53,6 +53,7 @@ static const struct file_operations default_file_ops = {
        .read =         default_read_file,
        .write =        default_write_file,
        .open =         default_open,
+       .llseek =       noop_llseek,
 };
 
 static struct inode *get_inode(struct super_block *sb, int mode, dev_t dev)
@@ -60,6 +61,7 @@ static struct inode *get_inode(struct super_block *sb, int mode, dev_t dev)
        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) {
@@ -86,7 +88,7 @@ static int mknod(struct inode *dir, struct dentry *dentry,
                         int mode, dev_t dev)
 {
        struct inode *inode;
-       int error = -EPERM;
+       int error = -ENOMEM;
 
        if (dentry->d_inode)
                return -EEXIST;
@@ -129,17 +131,17 @@ static int fill_super(struct super_block *sb, void *data, int silent)
        return simple_fill_super(sb, SECURITYFS_MAGIC, files);
 }
 
-static int get_sb(struct file_system_type *fs_type,
+static struct dentry *get_sb(struct file_system_type *fs_type,
                  int flags, const char *dev_name,
-                 void *data, struct vfsmount *mnt)
+                 void *data)
 {
-       return get_sb_single(fs_type, flags, data, fill_super, mnt);
+       return mount_single(fs_type, flags, data, fill_super);
 }
 
 static struct file_system_type fs_type = {
        .owner =        THIS_MODULE,
        .name =         "securityfs",
-       .get_sb =       get_sb,
+       .mount =        get_sb,
        .kill_sb =      kill_litter_super,
 };
 
@@ -156,25 +158,20 @@ static int create_by_name(const char *name, mode_t mode,
         * block. A pointer to that is in the struct vfsmount that we
         * have around.
         */
-       if (!parent ) {
-               if (mount && mount->mnt_sb) {
-                       parent = mount->mnt_sb->s_root;
-               }
-       }
-       if (!parent) {
-               pr_debug("securityfs: Ah! can not find a parent!\n");
-               return -EFAULT;
-       }
+       if (!parent)
+               parent = mount->mnt_sb->s_root;
 
        mutex_lock(&parent->d_inode->i_mutex);
        *dentry = lookup_one_len(name, parent, strlen(name));
-       if (!IS_ERR(dentry)) {
+       if (!IS_ERR(*dentry)) {
                if ((mode & S_IFMT) == S_IFDIR)
                        error = mkdir(parent->d_inode, *dentry, mode);
                else
                        error = create(parent->d_inode, *dentry, mode);
+               if (error)
+                       dput(*dentry);
        } else
-               error = PTR_ERR(dentry);
+               error = PTR_ERR(*dentry);
        mutex_unlock(&parent->d_inode->i_mutex);
 
        return error;