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Diffstat (limited to 'arch/s390/kernel/vdso.c')
-rw-r--r--arch/s390/kernel/vdso.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 59eddb0e1a3e..94495cac8be3 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -80,7 +80,7 @@ struct vdso_data *vdso_data = &vdso_data_store.data;
/*
* Setup vdso data page.
*/
-static void vdso_init_data(struct vdso_data *vd)
+static void __init vdso_init_data(struct vdso_data *vd)
{
vd->ectg_available = test_facility(31);
}
@@ -90,9 +90,10 @@ static void vdso_init_data(struct vdso_data *vd)
*/
#define SEGMENT_ORDER 2
-int vdso_alloc_per_cpu(struct _lowcore *lowcore)
+int vdso_alloc_per_cpu(struct lowcore *lowcore)
{
unsigned long segment_table, page_table, page_frame;
+ struct vdso_per_cpu_data *vd;
u32 *psal, *aste;
int i;
@@ -107,6 +108,12 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore)
if (!segment_table || !page_table || !page_frame)
goto out;
+ /* Initialize per-cpu vdso data page */
+ vd = (struct vdso_per_cpu_data *) page_frame;
+ vd->cpu_nr = lowcore->cpu_nr;
+ vd->node_id = cpu_to_node(vd->cpu_nr);
+
+ /* Set up access register mode page table */
clear_table((unsigned long *) segment_table, _SEGMENT_ENTRY_EMPTY,
PAGE_SIZE << SEGMENT_ORDER);
clear_table((unsigned long *) page_table, _PAGE_INVALID,
@@ -138,7 +145,7 @@ out:
return -ENOMEM;
}
-void vdso_free_per_cpu(struct _lowcore *lowcore)
+void vdso_free_per_cpu(struct lowcore *lowcore)
{
unsigned long segment_table, page_table, page_frame;
u32 *psal, *aste;
@@ -163,7 +170,7 @@ static void vdso_init_cr5(void)
if (!vdso_enabled)
return;
- cr5 = offsetof(struct _lowcore, paste);
+ cr5 = offsetof(struct lowcore, paste);
__ctl_load(cr5, 5, 5);
}
@@ -299,8 +306,6 @@ static int __init vdso_init(void)
get_page(virt_to_page(vdso_data));
- smp_mb();
-
return 0;
}
early_initcall(vdso_init);