On Tue, Feb 06, 2024 at 10:33:22AM +0100, Geert Uytterhoeven wrote: > If all of this is true, is there any reason to keep REGCACHE_RBTREE > around? If not, perhaps REGCACHE_RBTREE should be treated as > REGCACHE_MAPLE in the regmap core code first, followed by a single > tree-wide patch to replace REGCACHE_RBTREE? There is a very small niche for devices where cache syncs are a particularly important part of the workload where rbtree's choices might give better performance, especially on systems with low end CPUs.
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