Commit-ID: a090c4f2cd2cfeb54eaf8ad1e726a6c485f3abc3
Gitweb: http://git.kernel.org/tip/a090c4f2cd2cfeb54eaf8ad1e726a6c485f3abc3
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Mon, 21 Aug 2017 15:42:52 +0200
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Fri, 25 Aug 2017 11:12:19 +0200
sched/topology: Improve comments
Mike provided a better comment for destroy_sched_domain() ...
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
kernel/sched/topology.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 4197f13..179b90b 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -344,8 +344,9 @@ static void free_sched_groups(struct sched_group *sg, int free_sgc)
static void destroy_sched_domain(struct sched_domain *sd)
{
/*
- * A sched domain has many groups' reference, and an overlapping
- * domain has private groups, iterate and nuke them all.
+ * A normal sched domain may have multiple group references, an
+ * overlapping domain, having private groups, only one. Iterate,
+ * dropping group/capacity references, freeing where none remain.
*/
free_sched_groups(sd->groups, 1);
--
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