[PATCH] proper prototype for tosh_smm()

[linux-drm-fsl-dcu.git] / include / asm-sparc64 / futex.h

diff --git a/include/asm-sparc64/futex.h b/include/asm-sparc64/futex.h
index dee40206b221f8d30d1e011faf79eedbea81402c..876312fe82ccf9dbf894a100a26978a5f8267f10 100644 (file)
--- a/include/asm-sparc64/futex.h
+++ b/include/asm-sparc64/futex.h
@@ -45,7 +45,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
        if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
                oparg = 1 << oparg;
 
-       inc_preempt_count();
+       pagefault_disable();
 
        switch (op) {
        case FUTEX_OP_SET:
@@ -67,7 +67,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
                ret = -ENOSYS;
        }
 
-       dec_preempt_count();
+       pagefault_enable();
 
        if (!ret) {
                switch (cmp) {
@@ -87,24 +87,22 @@ static inline int
 futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
        __asm__ __volatile__(
-       "\n1:   lduwa   [%2] %%asi, %0\n"
-       "2:     casa    [%2] %%asi, %0, %1\n"
-       "3:\n"
+       "\n1:   casa    [%3] %%asi, %2, %0\n"
+       "2:\n"
        "       .section .fixup,#alloc,#execinstr\n"
        "       .align  4\n"
-       "4:     ba      3b\n"
-       "        mov    %3, %0\n"
+       "3:     ba      2b\n"
+       "        mov    %4, %0\n"
        "       .previous\n"
        "       .section __ex_table,\"a\"\n"
        "       .align  4\n"
-       "       .word   1b, 4b\n"
-       "       .word   2b, 4b\n"
+       "       .word   1b, 3b\n"
        "       .previous\n"
-       : "=&r" (oldval)
-       : "r" (newval), "r" (uaddr), "i" (-EFAULT)
+       : "=r" (newval)
+       : "0" (newval), "r" (oldval), "r" (uaddr), "i" (-EFAULT)
        : "memory");
 
-       return oldval;
+       return newval;
 }
 
 #endif /* !(_SPARC64_FUTEX_H) */