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| author | Lin Shengwang <linshengwang1@huawei.com> | 2022-10-08 10:27:09 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-03 23:59:15 +0900 |
| commit | 739eac37ff9cf5d5d416153e562970800afd67dd (patch) | |
| tree | 5241b3be14f333fa2119e46d8e7b17237ac9ab1a /kernel | |
| parent | ca7b0a10287e2733bdafb01ef0d4038536625fe3 (diff) | |
sched/core: Fix comparison in sched_group_cookie_match()
[ Upstream commit e705968dd687574b6ca3ebe772683d5642759132 ]
In commit 97886d9dcd86 ("sched: Migration changes for core scheduling"),
sched_group_cookie_match() was added to help determine if a cookie
matches the core state.
However, while it iterates the SMT group, it fails to actually use the
RQ for each of the CPUs iterated, use cpu_rq(cpu) instead of rq to fix
things.
Fixes: 97886d9dcd86 ("sched: Migration changes for core scheduling")
Signed-off-by: Lin Shengwang <linshengwang1@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221008022709.642-1-linshengwang1@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/sched.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index e49902898253..7a3fcd70aa86 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1148,6 +1148,14 @@ static inline bool is_migration_disabled(struct task_struct *p) #endif } +DECLARE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); + +#define cpu_rq(cpu) (&per_cpu(runqueues, (cpu))) +#define this_rq() this_cpu_ptr(&runqueues) +#define task_rq(p) cpu_rq(task_cpu(p)) +#define cpu_curr(cpu) (cpu_rq(cpu)->curr) +#define raw_rq() raw_cpu_ptr(&runqueues) + struct sched_group; #ifdef CONFIG_SCHED_CORE static inline struct cpumask *sched_group_span(struct sched_group *sg); @@ -1235,7 +1243,7 @@ static inline bool sched_group_cookie_match(struct rq *rq, return true; for_each_cpu_and(cpu, sched_group_span(group), p->cpus_ptr) { - if (sched_core_cookie_match(rq, p)) + if (sched_core_cookie_match(cpu_rq(cpu), p)) return true; } return false; @@ -1361,14 +1369,6 @@ static inline void update_idle_core(struct rq *rq) static inline void update_idle_core(struct rq *rq) { } #endif -DECLARE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); - -#define cpu_rq(cpu) (&per_cpu(runqueues, (cpu))) -#define this_rq() this_cpu_ptr(&runqueues) -#define task_rq(p) cpu_rq(task_cpu(p)) -#define cpu_curr(cpu) (cpu_rq(cpu)->curr) -#define raw_rq() raw_cpu_ptr(&runqueues) - #ifdef CONFIG_FAIR_GROUP_SCHED static inline struct task_struct *task_of(struct sched_entity *se) { |