Hello,
On Thu, Jun 15, 2017 at 11:17:19AM -0700, Shaohua Li wrote:
> From: Shaohua Li <shli@xxxxxx>
>
> By default we output cgroup id in blktrace. This adds an option to
> display cgroup path. Since get cgroup path is a relativly heavy
> operation, we don't enable it by default.
>
> with the option enabled, blktrace will output something like this:
> dd-1353 [007] d..2 293.015252: 8,0 /test/level D R 24 + 8 [dd]
>
> Signed-off-by: Shaohua Li <shli@xxxxxx>
> @@ -613,6 +613,9 @@ static inline struct kernfs_node_id *cgroup_get_node_id(struct cgroup *cgrp)
> {
> return &cgrp->kn->id;
> }
> +
> +void cgroup_path_from_node_id(const struct kernfs_node_id *id,
> + char *buf, size_t buflen);
Maybe cgroup_path_from_kernfs_id()? We eventually can replace
cgrp->id w/ kernfs id and drop the kernfs qualifier.
Thanks.
--
tejun
