Commit fc560a26acce ("cpuset: replace cpuset->stack_list with
cpuset_for_each_descendant_pre()") removed the local list (q)
that was used to perform a top-down scan of all cpusets;
however, comments mentioning it were not updated.
Update comments to reflect current implementation.
Signed-off-by: Juri Lelli <juri.lelli@xxxxxxxxxx>
---
kernel/cgroup/cpuset.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index f0decd8165e7..f0822a730879 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -725,11 +725,10 @@ static inline int nr_cpusets(void)
* Must be called with cpuset_mutex held.
*
* The three key local variables below are:
- * q - a linked-list queue of cpuset pointers, used to implement a
- * top-down scan of all cpusets. This scan loads a pointer
- * to each cpuset marked is_sched_load_balance into the
- * array 'csa'. For our purposes, rebuilding the schedulers
- * sched domains, we can ignore !is_sched_load_balance cpusets.
+ * cp - cpuset pointer, used (together with pos_css) to perform a
+ * top-down scan of all cpusets. For our purposes, rebuilding
+ * the schedulers sched domains, we can ignore !is_sched_load_
+ * balance cpusets.
* csa - (for CpuSet Array) Array of pointers to all the cpusets
* that need to be load balanced, for convenient iterative
* access by the subsequent code that finds the best partition,
@@ -760,7 +759,7 @@ static inline int nr_cpusets(void)
static int generate_sched_domains(cpumask_var_t **domains,
struct sched_domain_attr **attributes)
{
- struct cpuset *cp; /* scans q */
+ struct cpuset *cp; /* top-down scan of cpusets */
struct cpuset **csa; /* array of all cpuset ptrs */
int csn; /* how many cpuset ptrs in csa so far */
int i, j, k; /* indices for partition finding loops */
--
2.17.2
