On Wed, Jul 17, 2019 at 12:51:56PM +0200, Lucas Stach wrote: > The regmap is only ever used to access MMIO registers, so it's fair > to say that register access is fast. Are you sure there's no caches that try to do allocations at runtime? The main thing fast_io does is change the locking to spinlocks which means we shouldn't do any allocations under lock, such as when updating the cache.
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