[LTP] [PATCH v3 5/7] docs: Update CGroups API

[Li Wang]

> +static void run(void)
> +{
> +       char buf[BUFSIZ];
> +       size_t mem = 0;
> +
> +       cg_child = tst_cgroup_mk(cg, "child");
> +       SAFE_CGROUP_PRINTF(cg_child, "cgroup.procs", "%d", getpid());
> +
> +       if (SAFE_CGROUP_VER(cg, "memory") != TST_CGROUP_V1)
> +               SAFE_CGROUP_PRINT(cg, "cgroup.subtree_control", "+memory");
> +       if (SAFE_CGROUP_VER(cg, "cpuset") != TST_CGROUP_V1)
> +               SAFE_CGROUP_PRINT(cg, "cgroup.subtree_control", "+cpuset");
>

Kind reminder:

If you decide to add controllers automatically (as I suggested in patch3/7)
in
tst_cgroup_mk(), then these lines should be removed.


> +Another example of an edge case is the following.
> +
> +[source,c]
>
> +-------------------------------------------------------------------------------
> +       if (tst_cgroup_ver(cg, "memory") == TST_CGROUP_V1)
> +               SAFE_CGROUP_PRINTF(cg, "memory.swap.max", "%lu", ~0UL);
> +       else
> +               SAFE_CGROUP_PRINT(cg, "memory.swap.max", "max");
>

typo PRINT --> PRINTF ^.

Btw, these documented works are quite awesome!

-- 
Regards,
Li Wang
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