[PATCH v2 1/2] bcache: writeback rate shouldn't artifically clamp [PATCH v2 2/2] bcache: rearrange writeback main thread ratelimit
This is a reroll of the previous "don't clamp" patch. It corrects type issues where negative numbers were handled badly (mostly for display in writeback_rate_debug). Additionally, a new, related patch-- during scanning for dirty blocks, don't reset the ratelimiting counter. This can prevent undershoots/overshoots of the target rate relating to scanning. Mike
