ght be improved. FatFs can manage this function by setting <tt><a href="config.html#use_trim">_USE_TRIM</a></tt> to 1. Note that this is an expectation of internal process of the storage device and not that always effective. Most applications will not need this function. Also <tt>f_unlink</tt> function can take a time when remove a large file.</p>
</div>

<div class="para doc" id="critical">
<h3>Critical Section</h3>
<p>If a write operation to the FAT volume is interrupted due to an accidental failure, such