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19 .Nd add spans to a vmem arena
34 The vmem arena to which the span should be added.
36 The base address of the span to add.
38 The size of the span to add.
40 Flags affecting the allocation of the span to add.
49 to a vmem arena from which future calls to
58 and indicate whether the addition may block.
60 This function can be called from either user or kernel context.
63 flag is specified, it may also be called from interrupt context.