hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

cpumask: convert c1e_mask in arch/x86/kernel/process.c to cpumask_var_t. 

Impact: reduce kernel size when CONFIG_CPUMASK_OFFSTACK=y

Simple conversion.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2009-03-13 14:49:49 +10:30
parent d3d2e7f243
commit bc9b83dd1f
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/x86/kernel/process.c
View File

@ -474,12 +474,12 @@ static int __cpuinit check_c1e_idle(const struct cpuinfo_x86 *c)
return 1;
}
static cpumask_t c1e_mask = CPU_MASK_NONE;
static cpumask_var_t c1e_mask;
static int c1e_detected;
void c1e_remove_cpu(int cpu)
{
cpu_clear(cpu, c1e_mask);
cpumask_clear_cpu(cpu, c1e_mask);
}
/*
@ -508,8 +508,8 @@ static void c1e_idle(void)
if (c1e_detected) {
int cpu = smp_processor_id();
if (!cpu_isset(cpu, c1e_mask)) {
cpu_set(cpu, c1e_mask);
if (!cpumask_test_cpu(cpu, c1e_mask)) {
cpumask_set_cpu(cpu, c1e_mask);
/*
* Force broadcast so ACPI can not interfere. Needs
* to run with interrupts enabled as it uses
@ -556,6 +556,8 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
pm_idle = mwait_idle;
} else if (check_c1e_idle(c)) {
printk(KERN_INFO "using C1E aware idle routine\n");
alloc_cpumask_var(&c1e_mask, GFP_KERNEL);
cpumask_clear(c1e_mask);
pm_idle = c1e_idle;
} else
pm_idle = default_idle;