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-rw-r--r--arch/s390/lib/uaccess_pt.c3
-rw-r--r--arch/s390/lib/uaccess_std.c3
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index 633249c3ba91..49c3e46b4065 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -8,6 +8,7 @@
*/
#include <linux/errno.h>
+#include <linux/hardirq.h>
#include <linux/mm.h>
#include <asm/uaccess.h>
#include <asm/futex.h>
@@ -18,6 +19,8 @@ static inline int __handle_fault(struct mm_struct *mm, unsigned long address,
struct vm_area_struct *vma;
int ret = -EFAULT;
+ if (in_atomic())
+ return ret;
down_read(&mm->mmap_sem);
vma = find_vma(mm, address);
if (unlikely(!vma))
diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c
index bbaca66fa293..56a0214e9928 100644
--- a/arch/s390/lib/uaccess_std.c
+++ b/arch/s390/lib/uaccess_std.c
@@ -258,8 +258,6 @@ int futex_atomic_op(int op, int __user *uaddr, int oparg, int *old)
{
int oldval = 0, newval, ret;
- pagefault_disable();
-
switch (op) {
case FUTEX_OP_SET:
__futex_atomic_op("lr %2,%5\n",
@@ -284,7 +282,6 @@ int futex_atomic_op(int op, int __user *uaddr, int oparg, int *old)
default:
ret = -ENOSYS;
}
- pagefault_enable();
*old = oldval;
return ret;
}