diff options
| author | Shrikanth Hegde <sshegde@linux.ibm.com> | 2026-05-15 22:54:56 +0530 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-05-19 12:17:37 +0200 |
| commit | acbdbab75ff4b1b87ab3c3d2b6ca86948f472189 (patch) | |
| tree | 878bc0061b17345ddd345b3809300b4ea22933da /kernel | |
| parent | 3dbb362f90f3a8300ed9209d3278e30f8dbfb780 (diff) | |
sched: Unify SMT active check via sched_smt_active()
There is a use of sched_smt_active() and explicit use of sched_smt_present.
Remove the explicit usage for better code maintenance and readability.
Note that this differs slightly for update_idle_core. It used to call
static_branch_unlikely earlier and now it will call static_branch_likely.
Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Link: https://patch.msgid.link/20260515172456.542799-5-sshegde@linux.ibm.com
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/core_sched.c | 2 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 2 | ||||
| -rw-r--r-- | kernel/sched/sched.h | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/kernel/sched/core_sched.c b/kernel/sched/core_sched.c index 73b6b2426911..43e0bde3038e 100644 --- a/kernel/sched/core_sched.c +++ b/kernel/sched/core_sched.c @@ -136,7 +136,7 @@ int sched_core_share_pid(unsigned int cmd, pid_t pid, enum pid_type type, struct pid *grp; int err = 0; - if (!static_branch_likely(&sched_smt_present)) + if (!sched_smt_active()) return -ENODEV; BUILD_BUG_ON(PR_SCHED_CORE_SCOPE_THREAD != PIDTYPE_PID); diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 14bd31b17c71..bcaadddf8624 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2247,7 +2247,7 @@ numa_type numa_classify(unsigned int imbalance_pct, static inline bool test_idle_cores(int cpu); static inline int numa_idle_core(int idle_core, int cpu) { - if (!static_branch_likely(&sched_smt_present) || + if (!sched_smt_active() || idle_core >= 0 || !test_idle_cores(cpu)) return idle_core; diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index e476623a0c2a..ffe77b2b6296 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1671,7 +1671,7 @@ extern void __update_idle_core(struct rq *rq); static inline void update_idle_core(struct rq *rq) { - if (static_branch_unlikely(&sched_smt_present)) + if (sched_smt_active()) __update_idle_core(rq); } |