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@@ -12,35 +12,32 @@
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#include <asm/uaccess.h>
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#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
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- __asm__ __volatile( \
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-"1: " insn "\n" \
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-"2: .section .fixup,\"ax\"\n \
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-3: mov %3, %1\n \
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- jmp 2b\n \
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- .previous\n" \
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- _ASM_EXTABLE(1b,3b) \
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- : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
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- : "i" (-EFAULT), "0" (oparg), "1" (0))
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+ asm volatile("1:\t" insn "\n" \
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+ "2:\t.section .fixup,\"ax\"\n" \
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+ "3:\tmov\t%3, %1\n" \
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+ "\tjmp\t2b\n" \
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+ "\t.previous\n" \
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+ _ASM_EXTABLE(1b, 3b) \
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+ : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
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+ : "i" (-EFAULT), "0" (oparg), "1" (0))
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#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
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- __asm__ __volatile( \
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-"1: movl %2, %0\n \
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- movl %0, %3\n" \
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- insn "\n" \
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-"2: lock; cmpxchgl %3, %2\n \
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- jnz 1b\n \
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-3: .section .fixup,\"ax\"\n \
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-4: mov %5, %1\n \
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- jmp 3b\n \
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- .previous\n" \
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- _ASM_EXTABLE(1b,4b) \
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- _ASM_EXTABLE(2b,4b) \
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- : "=&a" (oldval), "=&r" (ret), "+m" (*uaddr), \
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- "=&r" (tem) \
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- : "r" (oparg), "i" (-EFAULT), "1" (0))
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-
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-static inline int
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-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
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+ asm volatile("1:\tmovl %2, %0\n" \
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+ "\tmovl\t%0, %3\n" \
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+ "\t" insn "\n" \
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+ "2:\tlock; cmpxchgl %3, %2\n" \
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+ "\tjnz\t1b\n" \
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+ "3:\t.section .fixup,\"ax\"\n" \
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+ "4:\tmov\t%5, %1\n" \
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+ "\tjmp\t3b\n" \
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+ "\t.previous\n" \
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+ _ASM_EXTABLE(1b, 4b) \
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+ _ASM_EXTABLE(2b, 4b) \
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+ : "=&a" (oldval), "=&r" (ret), \
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+ "+m" (*uaddr), "=&r" (tem) \
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+ : "r" (oparg), "i" (-EFAULT), "1" (0))
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+
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+static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
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{
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int op = (encoded_op >> 28) & 7;
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int cmp = (encoded_op >> 24) & 15;
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@@ -87,20 +84,33 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
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if (!ret) {
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switch (cmp) {
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- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
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- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
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- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
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- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
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- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
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- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
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- default: ret = -ENOSYS;
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+ case FUTEX_OP_CMP_EQ:
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+ ret = (oldval == cmparg);
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+ break;
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+ case FUTEX_OP_CMP_NE:
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+ ret = (oldval != cmparg);
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+ break;
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+ case FUTEX_OP_CMP_LT:
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+ ret = (oldval < cmparg);
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+ break;
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+ case FUTEX_OP_CMP_GE:
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+ ret = (oldval >= cmparg);
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+ break;
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+ case FUTEX_OP_CMP_LE:
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+ ret = (oldval <= cmparg);
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+ break;
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+ case FUTEX_OP_CMP_GT:
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+ ret = (oldval > cmparg);
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+ break;
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+ default:
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+ ret = -ENOSYS;
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}
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}
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return ret;
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}
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-static inline int
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-futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
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+static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval,
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+ int newval)
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{
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#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_BSWAP)
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@@ -112,16 +122,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
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if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
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return -EFAULT;
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- __asm__ __volatile__(
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- "1: lock; cmpxchgl %3, %1 \n"
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- "2: .section .fixup, \"ax\" \n"
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- "3: mov %2, %0 \n"
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- " jmp 2b \n"
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- " .previous \n"
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- _ASM_EXTABLE(1b,3b)
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- : "=a" (oldval), "+m" (*uaddr)
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- : "i" (-EFAULT), "r" (newval), "0" (oldval)
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- : "memory"
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+ asm volatile("1:\tlock; cmpxchgl %3, %1\n"
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+ "2:\t.section .fixup, \"ax\"\n"
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+ "3:\tmov %2, %0\n"
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+ "\tjmp 2b\n"
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+ "\t.previous\n"
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+ _ASM_EXTABLE(1b, 3b)
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+ : "=a" (oldval), "+m" (*uaddr)
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+ : "i" (-EFAULT), "r" (newval), "0" (oldval)
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+ : "memory"
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);
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return oldval;
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