On 09/27/2017 12:03 PM, Jan Kara wrote:

+unsigned pagevec_lookup_range_nr_tag(struct pagevec *pvec,
+		struct address_space *mapping, pgoff_t *index, pgoff_t end,
+		int tag, unsigned max_pages)
+{
+	pvec->nr = find_get_pages_range_tag(mapping, index, end, tag,
+		min_t(unsigned int, max_pages, PAGEVEC_SIZE), pvec->pages);
+	return pagevec_count(pvec);
+}
+EXPORT_SYMBOL(pagevec_lookup_range_tag);

The EXPORT_SYMBOL should be pagevec_lookup_range_nr_tag instead of 
pagevec_lookup_range_tag.

Daniel


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