Re: [RFC PATCH 2/8] blk-iocost: define iocost_model_ops cost model interface

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From: Tejun Heo

Date: Tue Sep 08 2026 - 18:06:32 EST

Hello, Tao.

On Tue, 08 Sep 2026 18:01:37 +0800, Tao Cui wrote:

> +config BLK_CGROUP_IOCOST_BPF
> + bool "Enable BPF pluggable cost model support for the cost IO controller"
> + depends on BLK_CGROUP_IOCOST && BPF_SYSCALL && BPF_JIT

This also needs a dependency on DEBUG_INFO_BTF. Otherwise the option can be
enabled without the BTF required to register iocost_model_ops.

Thanks.

--
tejun