| Message ID | 1470813559-2917-4-git-send-email-jszhang@marvell.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c index c7cfb8f..c1e4802 100644 --- a/arch/arm64/kernel/cpu_ops.c +++ b/arch/arm64/kernel/cpu_ops.c @@ -28,7 +28,7 @@ extern const struct cpu_operations smp_spin_table_ops; extern const struct cpu_operations acpi_parking_protocol_ops; extern const struct cpu_operations cpu_psci_ops; -const struct cpu_operations *cpu_ops[NR_CPUS]; +const struct cpu_operations *cpu_ops[NR_CPUS] __read_mostly; static const struct cpu_operations *dt_supported_cpu_ops[] __initconst = { &smp_spin_table_ops,
cpu_ops is initialized once by cpu_read_ops(), and thereafter is mostly read in hot path, such as arm_cpuidle_suspend(). The fact that it is mostly read and not written to makes it candidates for __read_mostly declarations. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> --- arch/arm64/kernel/cpu_ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)