Matthew Wilcox 4a5c8d8989 XArray: Fix xa_reserve for 2-byte aligned entries ...

If we reserve index 0, the next entry to be stored there might be 2-byte
aligned.  That means we have to create the root xa_node at the time of
reserving the initial entry.

Signed-off-by: Matthew Wilcox <willy@infradead.org>

2019-02-21 17:54:44 -05:00

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