Hi Tejun,
On Tue, Aug 18, 2026 at 07:21:37AM -1000, Tejun Heo wrote:
Hello,
On Mon, Aug 17, 2026 at 02:42:04PM -0700, Ziyang Men wrote:
+/**
+ * bpf_blkcg_flush_stats - Flush a block cgroup's io statistics
+ * @cgrp: cgroup to flush
+ *
+ * Propagate I/O statistics up the cgroup tree. Root statistics come from
+ * block devices and include all cgroups' I/O.
+ */
+__bpf_kfunc void bpf_blkcg_flush_stats(struct cgroup *cgrp)
Either @css or @blkcg, probably the latter so that each operation doesn't
have to verify subsys again. I'd make this and the cpu ppatches into a
single series. Add blkcg cast there too.
Ok I will add the casts bpf_get_blkcg() and bpf_put_blkcg(), and remove the
check of css->ss in above functoins.
Next submission of this series will be together with the cpu one.
Thanks.
--
tejun
Thanks for your review!
Best,
Ziyang
