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xen: use this_cpu_xxx replace percpu_xxx funcs

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percpu_xxx funcs are duplicated with this_cpu_xxx funcs, so replace them
for further code clean up.

I don't know much of xen code. But, since the code is in x86 architecture,
the percpu_xxx is exactly same as this_cpu_xxx serials functions. So, the
change is safe.

Signed-off-by: Alex Shi <alex.shi@intel.com>
Acked-by: Christoph Lameter <cl@gentwo.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Alex Shi
2012-01-13 23:53:35 +08:00
committed by Konrad Rzeszutek Wilk
parent cd9db80e52
commit 2113f46916
5 changed files with 19 additions and 19 deletions
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20
arch/x86/xen/mmu.c
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@@ -1071,14 +1071,14 @@ static void drop_other_mm_ref(void *info)
struct mm_struct *mm = info;
struct mm_struct *active_mm;
active_mm = percpu_read(cpu_tlbstate.active_mm);
active_mm = this_cpu_read(cpu_tlbstate.active_mm);
if (active_mm == mm && percpu_read(cpu_tlbstate.state) != TLBSTATE_OK)
if (active_mm == mm && this_cpu_read(cpu_tlbstate.state) != TLBSTATE_OK)
leave_mm(smp_processor_id());
/* If this cpu still has a stale cr3 reference, then make sure
it has been flushed. */
if (percpu_read(xen_current_cr3) == __pa(mm->pgd))
if (this_cpu_read(xen_current_cr3) == __pa(mm->pgd))
load_cr3(swapper_pg_dir);
}
@@ -1185,17 +1185,17 @@ static void __init xen_pagetable_setup_done(pgd_t *base)
static void xen_write_cr2(unsigned long cr2)
{
percpu_read(xen_vcpu)->arch.cr2 = cr2;
this_cpu_read(xen_vcpu)->arch.cr2 = cr2;
}
static unsigned long xen_read_cr2(void)
{
return percpu_read(xen_vcpu)->arch.cr2;
return this_cpu_read(xen_vcpu)->arch.cr2;
}
unsigned long xen_read_cr2_direct(void)
{
return percpu_read(xen_vcpu_info.arch.cr2);
return this_cpu_read(xen_vcpu_info.arch.cr2);
}
static void xen_flush_tlb(void)
@@ -1278,12 +1278,12 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
static unsigned long xen_read_cr3(void)
{
return percpu_read(xen_cr3);
return this_cpu_read(xen_cr3);
}
static void set_current_cr3(void *v)
{
percpu_write(xen_current_cr3, (unsigned long)v);
this_cpu_write(xen_current_cr3, (unsigned long)v);
}
static void __xen_write_cr3(bool kernel, unsigned long cr3)
@@ -1306,7 +1306,7 @@ static void __xen_write_cr3(bool kernel, unsigned long cr3)
xen_extend_mmuext_op(&op);
if (kernel) {
percpu_write(xen_cr3, cr3);
this_cpu_write(xen_cr3, cr3);
/* Update xen_current_cr3 once the batch has actually
been submitted. */
@@ -1322,7 +1322,7 @@ static void xen_write_cr3(unsigned long cr3)
/* Update while interrupts are disabled, so its atomic with
respect to ipis */
percpu_write(xen_cr3, cr3);
this_cpu_write(xen_cr3, cr3);
__xen_write_cr3(true, cr3);