Hi, Tejun! 在 2024/07/13 1:19, Tejun Heo 写道:
Hello, On Fri, Jul 12, 2024 at 08:51:41AM +0000, Xiu Jianfeng wrote:The congestion_count was introduced by commit d09d8df3a294 ("blkcg: add generic throttling mechanism"), but since it is closely related to the blkio subsys, it is not appropriate to put it in the struct cgroup, so move it to struct blkcg. Signed-off-by: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx> --- only compiling testedblkcg is per cgroup and blkg is per cgroup-device pair, so the change isn't just moving the field but updating what it means and how it works. The change needs a lot more thinking, justification and testing
I understand blkcg and blkg, however, maybe I'm being noob, I don't see how this patch is related to blkg, the change is that 'congestion_count' is moved from cgroup to blkcg. This look quite straightforward to me, maybe I'm missing something, can you explain more? Thanks, Kuai
Thanks.
