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x86: use _ASM_EXTABLE macro in include/asm-x86/futex.h

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Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in include/asm-x86/futex.h.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
H. Peter Anvin 2008-02-04 16:47:58 +01:00 committed by Ingo Molnar
parent f832ff18e8
commit 2532ec6d17
1 changed files with 6 additions and 17 deletions
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23
include/asm-x86/futex.h
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@ -17,11 +17,8 @@
"2: .section .fixup,\"ax\"\n \
3: mov %3, %1\n \
jmp 2b\n \
.previous\n \
.section __ex_table,\"a\"\n \
.align 8\n" \
_ASM_PTR "1b,3b\n \
.previous" \
.previous\n" \
_ASM_EXTABLE(1b,3b) \
: "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
: "i" (-EFAULT), "0" (oparg), "1" (0))
@ -35,11 +32,9 @@
3: .section .fixup,\"ax\"\n \
4: mov %5, %1\n \
jmp 3b\n \
.previous\n \
.section __ex_table,\"a\"\n \
.align 8\n" \
_ASM_PTR "1b,4b,2b,4b\n \
.previous" \
.previous\n" \
_ASM_EXTABLE(1b,4b) \
_ASM_EXTABLE(2b,4b) \
: "=&a" (oldval), "=&r" (ret), "+m" (*uaddr), \
"=&r" (tem) \
: "r" (oparg), "i" (-EFAULT), "1" (0))
@ -111,18 +106,12 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
return -EFAULT;
__asm__ __volatile__(
"1: lock; cmpxchgl %3, %1 \n"
"2: .section .fixup, \"ax\" \n"
"3: mov %2, %0 \n"
" jmp 2b \n"
" .previous \n"
" .section __ex_table, \"a\" \n"
" .align 8 \n"
_ASM_PTR " 1b,3b \n"
" .previous \n"
_ASM_EXTABLE(1b,3b)
: "=a" (oldval), "+m" (*uaddr)
: "i" (-EFAULT), "r" (newval), "0" (oldval)
: "memory"