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Matthew Wilcox (Oracle) authored
1. If we xa_cmpxchg() an entry in, it marks the index as not free. 2. If we xa_cmpxchg() NULL in, it marks the index as free. Signed-off-by:Matthew Wilcox (Oracle) <willy@infradead.org>
062b7359
1. If we xa_cmpxchg() an entry in, it marks the index as not free.
2. If we xa_cmpxchg() NULL in, it marks the index as free.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>