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Diffstat (limited to 'arch/ia64/include/asm/futex.h')
-rw-r--r--arch/ia64/include/asm/futex.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 0ab82cc2dc8f..d2bf1fd5e44f 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -106,15 +106,16 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
106 return -EFAULT; 106 return -EFAULT;
107 107
108 { 108 {
109 register unsigned long r8 __asm ("r8") = 0; 109 register unsigned long r8 __asm ("r8");
110 unsigned long prev; 110 unsigned long prev;
111 __asm__ __volatile__( 111 __asm__ __volatile__(
112 " mf;; \n" 112 " mf;; \n"
113 " mov ar.ccv=%3;; \n" 113 " mov %0=r0 \n"
114 "[1:] cmpxchg4.acq %0=[%1],%2,ar.ccv \n" 114 " mov ar.ccv=%4;; \n"
115 "[1:] cmpxchg4.acq %1=[%2],%3,ar.ccv \n"
115 " .xdata4 \"__ex_table\", 1b-., 2f-. \n" 116 " .xdata4 \"__ex_table\", 1b-., 2f-. \n"
116 "[2:]" 117 "[2:]"
117 : "=r" (prev) 118 : "=r" (r8), "=r" (prev)
118 : "r" (uaddr), "r" (newval), 119 : "r" (uaddr), "r" (newval),
119 "rO" ((long) (unsigned) oldval) 120 "rO" ((long) (unsigned) oldval)
120 : "memory"); 121 : "memory");