Hello, Generally looks fine to me. On Thu, Jun 03, 2021 at 05:24:13PM -0400, Waiman Long wrote: > @@ -1984,12 +1987,31 @@ static int update_prstate(struct cpuset *cs, int val) > goto out; > > err = update_parent_subparts_cpumask(cs, partcmd_enable, > - NULL, &tmp); > + NULL, &tmpmask); > + > if (err) { > update_flag(CS_CPU_EXCLUSIVE, cs, 0); > goto out; > + } else if (new_prs == PRS_ENABLED_NOLB) { > + /* > + * Disable the load balance flag should not return an ^ing and "else if" after "if (err) goto out" block is weird. The two conditions don't need to be tied together. > @@ -2518,6 +2547,9 @@ static int sched_partition_show(struct seq_file *seq, void *v) > case PRS_ENABLED: > seq_puts(seq, "root\n"); > break; > + case PRS_ENABLED_NOLB: > + seq_puts(seq, "root-nolb\n"); > + break; > case PRS_DISABLED: > seq_puts(seq, "member\n"); > break; > @@ -2544,6 +2576,8 @@ static ssize_t sched_partition_write(struct kernfs_open_file *of, char *buf, > val = PRS_ENABLED; > else if (!strcmp(buf, "member")) > val = PRS_DISABLED; > + else if (!strcmp(buf, "root-nolb")) > + val = PRS_ENABLED_NOLB; > else > return -EINVAL; I wonder whether there's a better name than "root-nolb" because nolb isn't the most readable and we are using space as the delimiter for other names. Would something like "isolated" work? Thanks. -- tejun