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-rw-r--r--arch/s390/lib/uaccess_std.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c
index 07deaeee14c8..bb1a7eed42ce 100644
--- a/arch/s390/lib/uaccess_std.c
+++ b/arch/s390/lib/uaccess_std.c
@@ -125,9 +125,9 @@ static size_t copy_in_user_std(size_t size, void __user *to,
125 unsigned long tmp1; 125 unsigned long tmp1;
126 126
127 asm volatile( 127 asm volatile(
128 " sacf 256\n"
128 " "AHI" %0,-1\n" 129 " "AHI" %0,-1\n"
129 " jo 5f\n" 130 " jo 5f\n"
130 " sacf 256\n"
131 " bras %3,3f\n" 131 " bras %3,3f\n"
132 "0:"AHI" %0,257\n" 132 "0:"AHI" %0,257\n"
133 "1: mvc 0(1,%1),0(%2)\n" 133 "1: mvc 0(1,%1),0(%2)\n"
@@ -142,9 +142,8 @@ static size_t copy_in_user_std(size_t size, void __user *to,
142 "3:"AHI" %0,-256\n" 142 "3:"AHI" %0,-256\n"
143 " jnm 2b\n" 143 " jnm 2b\n"
144 "4: ex %0,1b-0b(%3)\n" 144 "4: ex %0,1b-0b(%3)\n"
145 " sacf 0\n"
146 "5: "SLR" %0,%0\n" 145 "5: "SLR" %0,%0\n"
147 "6:\n" 146 "6: sacf 0\n"
148 EX_TABLE(1b,6b) EX_TABLE(2b,0b) EX_TABLE(4b,0b) 147 EX_TABLE(1b,6b) EX_TABLE(2b,0b) EX_TABLE(4b,0b)
149 : "+a" (size), "+a" (to), "+a" (from), "=a" (tmp1) 148 : "+a" (size), "+a" (to), "+a" (from), "=a" (tmp1)
150 : : "cc", "memory"); 149 : : "cc", "memory");
@@ -156,9 +155,9 @@ static size_t clear_user_std(size_t size, void __user *to)
156 unsigned long tmp1, tmp2; 155 unsigned long tmp1, tmp2;
157 156
158 asm volatile( 157 asm volatile(
158 " sacf 256\n"
159 " "AHI" %0,-1\n" 159 " "AHI" %0,-1\n"
160 " jo 5f\n" 160 " jo 5f\n"
161 " sacf 256\n"
162 " bras %3,3f\n" 161 " bras %3,3f\n"
163 " xc 0(1,%1),0(%1)\n" 162 " xc 0(1,%1),0(%1)\n"
164 "0:"AHI" %0,257\n" 163 "0:"AHI" %0,257\n"
@@ -178,9 +177,8 @@ static size_t clear_user_std(size_t size, void __user *to)
178 "3:"AHI" %0,-256\n" 177 "3:"AHI" %0,-256\n"
179 " jnm 2b\n" 178 " jnm 2b\n"
180 "4: ex %0,0(%3)\n" 179 "4: ex %0,0(%3)\n"
181 " sacf 0\n"
182 "5: "SLR" %0,%0\n" 180 "5: "SLR" %0,%0\n"
183 "6:\n" 181 "6: sacf 0\n"
184 EX_TABLE(1b,6b) EX_TABLE(2b,0b) EX_TABLE(4b,0b) 182 EX_TABLE(1b,6b) EX_TABLE(2b,0b) EX_TABLE(4b,0b)
185 : "+a" (size), "+a" (to), "=a" (tmp1), "=a" (tmp2) 183 : "+a" (size), "+a" (to), "=a" (tmp1), "=a" (tmp2)
186 : : "cc", "memory"); 184 : : "cc", "memory");
@@ -257,7 +255,7 @@ size_t strncpy_from_user_std(size_t size, const char __user *src, char *dst)
257 : "0" (-EFAULT), "d" (oparg), "a" (uaddr), \ 255 : "0" (-EFAULT), "d" (oparg), "a" (uaddr), \
258 "m" (*uaddr) : "cc"); 256 "m" (*uaddr) : "cc");
259 257
260int futex_atomic_op_std(int op, int __user *uaddr, int oparg, int *old) 258int futex_atomic_op_std(int op, u32 __user *uaddr, int oparg, int *old)
261{ 259{
262 int oldval = 0, newval, ret; 260 int oldval = 0, newval, ret;
263 261
@@ -289,19 +287,21 @@ int futex_atomic_op_std(int op, int __user *uaddr, int oparg, int *old)
289 return ret; 287 return ret;
290} 288}
291 289
292int futex_atomic_cmpxchg_std(int __user *uaddr, int oldval, int newval) 290int futex_atomic_cmpxchg_std(u32 *uval, u32 __user *uaddr,
291 u32 oldval, u32 newval)
293{ 292{
294 int ret; 293 int ret;
295 294
296 asm volatile( 295 asm volatile(
297 " sacf 256\n" 296 " sacf 256\n"
298 "0: cs %1,%4,0(%5)\n" 297 "0: cs %1,%4,0(%5)\n"
299 "1: lr %0,%1\n" 298 "1: la %0,0\n"
300 "2: sacf 0\n" 299 "2: sacf 0\n"
301 EX_TABLE(0b,2b) EX_TABLE(1b,2b) 300 EX_TABLE(0b,2b) EX_TABLE(1b,2b)
302 : "=d" (ret), "+d" (oldval), "=m" (*uaddr) 301 : "=d" (ret), "+d" (oldval), "=m" (*uaddr)
303 : "0" (-EFAULT), "d" (newval), "a" (uaddr), "m" (*uaddr) 302 : "0" (-EFAULT), "d" (newval), "a" (uaddr), "m" (*uaddr)
304 : "cc", "memory" ); 303 : "cc", "memory" );
304 *uval = oldval;
305 return ret; 305 return ret;
306} 306}
307 307