4 files changed, 13 insertions, 19 deletions

diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 210339784b56..b00ee9f05a06 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -59,8 +59,14 @@ struct inode *jfs_iget(struct super_block *sb, unsigned long ino)
 		if (inode->i_size >= IDATASIZE) {
 			inode->i_op = &page_symlink_inode_operations;
 			inode->i_mapping->a_ops = &jfs_aops;
-		} else
+		} else {
 			inode->i_op = &jfs_symlink_inode_operations;
+			/*
+			 * The inline data should be null-terminated, but
+			 * don't let on-disk corruption crash the kernel
+			 */
+			JFS_IP(inode)->i_inline[inode->i_size] = '\0';
+		}
 	} else {
 		inode->i_op = &jfs_file_inode_operations;
 		init_special_inode(inode, inode->i_mode, inode->i_rdev);
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index ed6574bee51a..70022fd1c539 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -93,13 +93,13 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
 		return ERR_PTR(rc);
 	}
 
-	inode->i_uid = current->fsuid;
+	inode->i_uid = current_fsuid();
 	if (parent->i_mode & S_ISGID) {
 		inode->i_gid = parent->i_gid;
 		if (S_ISDIR(mode))
 			mode |= S_ISGID;
 	} else
-		inode->i_gid = current->fsgid;
+		inode->i_gid = current_fsgid();
 
 	/*
 	 * New inodes need to save sane values on disk when
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index cd2ec2988b59..335c4de6552d 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1168,7 +1168,7 @@ journal_found:
 	bd_release(bdev);
 
       close:		/* close external log device */
-	blkdev_put(bdev);
+	blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
 
       free:		/* free log descriptor */
 	mutex_unlock(&jfs_log_mutex);
@@ -1514,7 +1514,7 @@ int lmLogClose(struct super_block *sb)
 	rc = lmLogShutdown(log);
 
 	bd_release(bdev);
-	blkdev_put(bdev);
+	blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
 
 	kfree(log);
 
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 2aba82386810..cc3cedffbfa1 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1511,25 +1511,12 @@ struct dentry *jfs_fh_to_parent(struct super_block *sb, struct fid *fid,
 
 struct dentry *jfs_get_parent(struct dentry *dentry)
 {
-	struct super_block *sb = dentry->d_inode->i_sb;
-	struct dentry *parent = ERR_PTR(-ENOENT);
-	struct inode *inode;
 	unsigned long parent_ino;
 
 	parent_ino =
 		le32_to_cpu(JFS_IP(dentry->d_inode)->i_dtroot.header.idotdot);
-	inode = jfs_iget(sb, parent_ino);
-	if (IS_ERR(inode)) {
-		parent = ERR_CAST(inode);
-	} else {
-		parent = d_alloc_anon(inode);
-		if (!parent) {
-			parent = ERR_PTR(-ENOMEM);
-			iput(inode);
-		}
-	}
 
-	return parent;
+	return d_obtain_alias(jfs_iget(dentry->d_inode->i_sb, parent_ino));
 }
 
 const struct inode_operations jfs_dir_inode_operations = {
@@ -1560,6 +1547,7 @@ const struct file_operations jfs_dir_operations = {
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= jfs_compat_ioctl,
 #endif
+	.llseek		= generic_file_llseek,
 };
 
 static int jfs_ci_hash(struct dentry *dir, struct qstr *this)