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powerpc/smp: Add __ro_after_init attribute

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There are some variables that are only updated at boot time.
So add __ro_after_init attribute to such variables

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231214180720.310852-4-srikar@linux.vnet.ibm.com
This commit is contained in:
Srikar Dronamraju 2023-12-14 23:37:13 +05:30 • committed by Michael Ellerman
parent 0e1c1986e0
commit fd535a858e
1 changed files with 5 additions and 5 deletions
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10
arch/powerpc/kernel/smp.c
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@ -77,10 +77,10 @@ static DEFINE_PER_CPU(int, cpu_state) = { 0 };
#endif
struct task_struct *secondary_current;
bool has_big_cores;
bool coregroup_enabled;
bool thread_group_shares_l2;
bool thread_group_shares_l3;
bool has_big_cores __ro_after_init;
bool coregroup_enabled __ro_after_init;
bool thread_group_shares_l2 __ro_after_init;
bool thread_group_shares_l3 __ro_after_init;
DEFINE_PER_CPU(cpumask_var_t, cpu_sibling_map);
DEFINE_PER_CPU(cpumask_var_t, cpu_smallcore_map);
@ -987,7 +987,7 @@ static int __init init_thread_group_cache_map(int cpu, int cache_property)
return 0;
}
static bool shared_caches;
static bool shared_caches __ro_after_init;
#ifdef CONFIG_SCHED_SMT
/* cpumask of CPUs with asymmetric SMT dependency */