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authorJoe Perches <joe@perches.com>2008-03-23 04:02:12 -0400
committerIngo Molnar <mingo@elte.hu>2008-04-17 11:41:23 -0400
commit9407913fc16dde0e632b9639557422c6a792469d (patch)
treef4a601b773e922f9c4c4c110f8bd6750603885ac /include/asm-x86/futex.h
parent4637bc07c85621b0c10320da8cf3b34de83efa0f (diff)
include/asm-x86/futex.h: checkpatch cleanups - formatting only
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/futex.h')
-rw-r--r--include/asm-x86/futex.h101
1 files changed, 55 insertions, 46 deletions
diff --git a/include/asm-x86/futex.h b/include/asm-x86/futex.h
index c9952ea9f698..ac0fbf24d722 100644
--- a/include/asm-x86/futex.h
+++ b/include/asm-x86/futex.h
@@ -12,35 +12,32 @@
12#include <asm/uaccess.h> 12#include <asm/uaccess.h>
13 13
14#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ 14#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
15 __asm__ __volatile( \ 15 asm volatile("1:\t" insn "\n" \
16"1: " insn "\n" \ 16 "2:\t.section .fixup,\"ax\"\n" \
17"2: .section .fixup,\"ax\"\n \ 17 "3:\tmov\t%3, %1\n" \
183: mov %3, %1\n \ 18 "\tjmp\t2b\n" \
19 jmp 2b\n \ 19 "\t.previous\n" \
20 .previous\n" \ 20 _ASM_EXTABLE(1b, 3b) \
21 _ASM_EXTABLE(1b,3b) \ 21 : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
22 : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \ 22 : "i" (-EFAULT), "0" (oparg), "1" (0))
23 : "i" (-EFAULT), "0" (oparg), "1" (0))
24 23
25#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ 24#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
26 __asm__ __volatile( \ 25 asm volatile("1:\tmovl %2, %0\n" \
27"1: movl %2, %0\n \ 26 "\tmovl\t%0, %3\n" \
28 movl %0, %3\n" \ 27 "\t" insn "\n" \
29 insn "\n" \ 28 "2:\tlock; cmpxchgl %3, %2\n" \
30"2: lock; cmpxchgl %3, %2\n \ 29 "\tjnz\t1b\n" \
31 jnz 1b\n \ 30 "3:\t.section .fixup,\"ax\"\n" \
323: .section .fixup,\"ax\"\n \ 31 "4:\tmov\t%5, %1\n" \
334: mov %5, %1\n \ 32 "\tjmp\t3b\n" \
34 jmp 3b\n \ 33 "\t.previous\n" \
35 .previous\n" \ 34 _ASM_EXTABLE(1b, 4b) \
36 _ASM_EXTABLE(1b,4b) \ 35 _ASM_EXTABLE(2b, 4b) \
37 _ASM_EXTABLE(2b,4b) \ 36 : "=&a" (oldval), "=&r" (ret), \
38 : "=&a" (oldval), "=&r" (ret), "+m" (*uaddr), \ 37 "+m" (*uaddr), "=&r" (tem) \
39 "=&r" (tem) \ 38 : "r" (oparg), "i" (-EFAULT), "1" (0))
40 : "r" (oparg), "i" (-EFAULT), "1" (0)) 39
41 40static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
42static inline int
43futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
44{ 41{
45 int op = (encoded_op >> 28) & 7; 42 int op = (encoded_op >> 28) & 7;
46 int cmp = (encoded_op >> 24) & 15; 43 int cmp = (encoded_op >> 24) & 15;
@@ -87,20 +84,33 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
87 84
88 if (!ret) { 85 if (!ret) {
89 switch (cmp) { 86 switch (cmp) {
90 case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break; 87 case FUTEX_OP_CMP_EQ:
91 case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break; 88 ret = (oldval == cmparg);
92 case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break; 89 break;
93 case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break; 90 case FUTEX_OP_CMP_NE:
94 case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break; 91 ret = (oldval != cmparg);
95 case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break; 92 break;
96 default: ret = -ENOSYS; 93 case FUTEX_OP_CMP_LT:
94 ret = (oldval < cmparg);
95 break;
96 case FUTEX_OP_CMP_GE:
97 ret = (oldval >= cmparg);
98 break;
99 case FUTEX_OP_CMP_LE:
100 ret = (oldval <= cmparg);
101 break;
102 case FUTEX_OP_CMP_GT:
103 ret = (oldval > cmparg);
104 break;
105 default:
106 ret = -ENOSYS;
97 } 107 }
98 } 108 }
99 return ret; 109 return ret;
100} 110}
101 111
102static inline int 112static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval,
103futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) 113 int newval)
104{ 114{
105 115
106#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_BSWAP) 116#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_BSWAP)
@@ -112,16 +122,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
112 if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) 122 if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
113 return -EFAULT; 123 return -EFAULT;
114 124
115 __asm__ __volatile__( 125 asm volatile("1:\tlock; cmpxchgl %3, %1\n"
116 "1: lock; cmpxchgl %3, %1 \n" 126 "2:\t.section .fixup, \"ax\"\n"
117 "2: .section .fixup, \"ax\" \n" 127 "3:\tmov %2, %0\n"
118 "3: mov %2, %0 \n" 128 "\tjmp 2b\n"
119 " jmp 2b \n" 129 "\t.previous\n"
120 " .previous \n" 130 _ASM_EXTABLE(1b, 3b)
121 _ASM_EXTABLE(1b,3b) 131 : "=a" (oldval), "+m" (*uaddr)
122 : "=a" (oldval), "+m" (*uaddr) 132 : "i" (-EFAULT), "r" (newval), "0" (oldval)
123 : "i" (-EFAULT), "r" (newval), "0" (oldval) 133 : "memory"
124 : "memory"
125 ); 134 );
126 135
127 return oldval; 136 return oldval;
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-11 19:14:54 -0500