Re: [PATCH v5 04/12] ext4: introduce new callback for IOMAP_REPORT

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On 10/22/19 7:25 AM, Matthew Bobrowski wrote:
On Mon, Oct 21, 2019 at 03:37:15PM +0200, Jan Kara wrote:
On Mon 21-10-19 20:18:09, Matthew Bobrowski wrote:
One nit below.
+	ext4_es_find_extent_range(inode, &ext4_es_is_delayed,
+				  map->m_lblk, end, &es);
+
+	if (!es.es_len || es.es_lblk > end)
+		return false;
+
+	if (es.es_lblk > map->m_lblk) {
+		map->m_len = es.es_lblk - map->m_lblk;
+		return false;
+	}
+
+	if (es.es_lblk <= map->m_lblk)

This condition must be always true AFAICT.

That would make sense. I will remove this condition in v6.

+		offset = map->m_lblk - es.es_lblk;
+
+	map->m_lblk = es.es_lblk + offset;

And so, this above line will also be redundant.



+	map->m_len = es.es_len - offset;
+
+	return true;
+}

--<M>--





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