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Subject[PATCH] sched: core: Optimize the structure of 'tg_cfs_schedulable_down' function
Date
Optimize if branches and define  in the branch statement
block parent_quota variable.

Signed-off-by: Li kunyu <kunyu@nfschina.com>
---
kernel/sched/core.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 488655f2319f..7e8535d2e36d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -10915,15 +10915,12 @@ static int tg_cfs_schedulable_down(struct task_group *tg, void *data)
{
struct cfs_schedulable_data *d = data;
struct cfs_bandwidth *cfs_b = &tg->cfs_bandwidth;
- s64 quota = 0, parent_quota = -1;
+ s64 quota = RUNTIME_INF;

- if (!tg->parent) {
- quota = RUNTIME_INF;
- } else {
+ if (tg->parent) {
struct cfs_bandwidth *parent_b = &tg->parent->cfs_bandwidth;
-
+ s64 parent_quota = parent_b->hierarchical_quota;
quota = normalize_cfs_quota(tg, d);
- parent_quota = parent_b->hierarchical_quota;

/*
* Ensure max(child_quota) <= parent_quota. On cgroup2,
--
2.18.2
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