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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-11-02 08:50:02 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-11-02 08:50:02 -0800 |
| commit | 0ca2b776ab1f4ba99d7f592baa4ff8525e53b050 (patch) | |
| tree | 9a71bafec47e7f344a65e2dc7085512b4c521ee5 | |
| parent | aefba081d7b7dfd1c5752f6e6e709d8b5ab80ab7 (diff) | |
| parent | c7fed9d75074f7c243ec8ff2c55d04de2839a6f6 (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Fix futex_atomic_cmpxchg_inatomic implementation.
| -rw-r--r-- | include/asm-sparc64/futex.h | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/include/asm-sparc64/futex.h b/include/asm-sparc64/futex.h index dee40206b22..7392fc4a954 100644 --- a/include/asm-sparc64/futex.h +++ b/include/asm-sparc64/futex.h @@ -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) */ |