mm: Convert __do_page_cache_readahead to XArray
This one is trivial. Signed-off-by: Matthew Wilcox <willy@infradead.org>
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@ -176,9 +176,7 @@ unsigned int __do_page_cache_readahead(struct address_space *mapping,
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if (page_offset > end_index)
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if (page_offset > end_index)
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break;
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break;
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rcu_read_lock();
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page = xa_load(&mapping->i_pages, page_offset);
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page = radix_tree_lookup(&mapping->i_pages, page_offset);
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rcu_read_unlock();
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if (page && !xa_is_value(page)) {
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if (page && !xa_is_value(page)) {
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/*
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/*
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* Page already present? Kick off the current batch of
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* Page already present? Kick off the current batch of
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