ext3_change_inode_journal_flag() is only called from one location:
ext3_ioctl(EXT3_IOC_SETFLAGS).  That ioctl case already has a IS_RDONLY()
call in it so this one is superfluous.
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
         */
 
        journal = EXT3_JOURNAL(inode);
-       if (is_journal_aborted(journal) || IS_RDONLY(inode))
+       if (is_journal_aborted(journal))
                return -EROFS;
 
        journal_lock_updates(journal);