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| author | Thomas Gleixner <tglx@linutronix.de> | 2024-09-10 13:49:53 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-09-10 13:49:53 +0200 |
| commit | 2f7eedca6cecbfad52d5b52c1550066d9252c947 (patch) | |
| tree | ffce8be3ceee2c845a951d11b99578ca468639a4 /kernel/cpu.c | |
| parent | bd7c8ff9fef4b21a97f9b30a7364845ee6eaaf23 (diff) | |
| parent | da3ea35007d0af457a0afc87e84fddaebc4e0b63 (diff) | |
Merge branch 'linus' into timers/core
To update with the latest fixes.
Diffstat (limited to 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 031a2c15481b..5bfc2fdd7da0 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -2689,6 +2689,16 @@ int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval) return ret; } +/** + * Check if the core a CPU belongs to is online + */ +#if !defined(topology_is_core_online) +static inline bool topology_is_core_online(unsigned int cpu) +{ + return true; +} +#endif + int cpuhp_smt_enable(void) { int cpu, ret = 0; @@ -2699,7 +2709,7 @@ int cpuhp_smt_enable(void) /* Skip online CPUs and CPUs on offline nodes */ if (cpu_online(cpu) || !node_online(cpu_to_node(cpu))) continue; - if (!cpu_smt_thread_allowed(cpu)) + if (!cpu_smt_thread_allowed(cpu) || !topology_is_core_online(cpu)) continue; ret = _cpu_up(cpu, 0, CPUHP_ONLINE); if (ret) |