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IDR: Note that the IDR API is deprecated

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Some people read the documentation, perhaps.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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Matthew Wilcox (Oracle) 2022-07-06 17:39:21 -04:00
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Documentation/core-api/idr.rst
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@ -17,6 +17,9 @@ solution to the problem to avoid everybody inventing their own. The IDR
provides the ability to map an ID to a pointer, while the IDA provides provides the ability to map an ID to a pointer, while the IDA provides
only ID allocation, and as a result is much more memory-efficient. only ID allocation, and as a result is much more memory-efficient.
The IDR interface is deprecated; please use the :doc:`XArray <xarray>`
instead.
IDR usage IDR usage
========= =========