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Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

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* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Fix futex_atomic_cmpxchg_inatomic implementation.
This commit is contained in:
Linus Torvalds 2006-11-02 08:50:02 -08:00
commit 0ca2b776ab
1 changed files with 8 additions and 10 deletions
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18
include/asm-sparc64/futex.h
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@ -87,24 +87,22 @@ static inline int
futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
{
__asm__ __volatile__(
"\n1: lduwa [%2] %%asi, %0\n"
"2: casa [%2] %%asi, %0, %1\n"
"3:\n"
"\n1: casa [%3] %%asi, %2, %0\n"
"2:\n"
" .section .fixup,#alloc,#execinstr\n"
" .align 4\n"
"4: ba 3b\n"
" mov %3, %0\n"
"3: ba 2b\n"
" mov %4, %0\n"
" .previous\n"
" .section __ex_table,\"a\"\n"
" .align 4\n"
" .word 1b, 4b\n"
" .word 2b, 4b\n"
" .word 1b, 3b\n"
" .previous\n"
: "=&r" (oldval)
: "r" (newval), "r" (uaddr), "i" (-EFAULT)
: "=r" (newval)
: "0" (newval), "r" (oldval), "r" (uaddr), "i" (-EFAULT)
: "memory");
return oldval;
return newval;
}
#endif /* !(_SPARC64_FUTEX_H) */