[PATCH] generic arch_futex_atomic_op_inuser() cleanup

[Vasily Averin]

Access to 'op' variable does not require pagefault_disable(),
'ret' variable should be initialized before using,
'oldval' variable can be replaced by constant.

Signed-off-by: Vasily Averin <v...@virtuozzo.com>
---
 include/asm-generic/futex.h | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index 8666fe7f35d7..e9a9655d786d 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -118,9 +118,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 static inline int
 arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-       int oldval = 0, ret;
-
-       pagefault_disable();
+       int ret = 0;
 
        switch (op) {
        case FUTEX_OP_SET:
@@ -132,10 +130,8 @@ arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, 
u32 __user *uaddr)
                ret = -ENOSYS;
        }
 
-       pagefault_enable();
-
        if (!ret)
-               *oval = oldval;
+               *oval = 0;
 
        return ret;
 }
-- 
2.17.1