diff options
Diffstat (limited to 'arch/s390/lib/uaccess_std.c')
-rw-r--r-- | arch/s390/lib/uaccess_std.c | 18 |
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 | ||
260 | int futex_atomic_op_std(int op, int __user *uaddr, int oparg, int *old) | 258 | int 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 | ||
292 | int futex_atomic_cmpxchg_std(int __user *uaddr, int oldval, int newval) | 290 | int 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 | ||