Re: use persistent allocation for cursor blinking.

[Roland Dreier]

 > Every time the console cursor blinks, we do a kmalloc/kfree pair.
 > This patch turns that into a single allocation.

A naive question from someone who knows nothing about this subsystem:
is there any possibility of concurrent calls into this function, for
example if there are multiple cursors on a multiheaded system?

 - R.
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