Loading include/asm-sparc64/futex.h +20 −2 Original line number Original line Diff line number Diff line Loading @@ -84,9 +84,27 @@ static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) } } static inline int static inline int futex_atomic_cmpxchg_inuser(int __user *uaddr, int oldval, int newval) futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) { { return -ENOSYS; __asm__ __volatile__( "\n1: lduwa [%2] %%asi, %0\n" "2: casa [%2] %%asi, %0, %1\n" "3:\n" " .section .fixup,#alloc,#execinstr\n" " .align 4\n" "4: ba 3b\n" " mov %3, %0\n" " .previous\n" " .section __ex_table,\"a\"\n" " .align 4\n" " .word 1b, 4b\n" " .word 2b, 4b\n" " .previous\n" : "=&r" (oldval) : "r" (newval), "r" (uaddr), "i" (-EFAULT) : "memory"); return oldval; } } #endif /* !(_SPARC64_FUTEX_H) */ #endif /* !(_SPARC64_FUTEX_H) */ Loading
include/asm-sparc64/futex.h +20 −2 Original line number Original line Diff line number Diff line Loading @@ -84,9 +84,27 @@ static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) } } static inline int static inline int futex_atomic_cmpxchg_inuser(int __user *uaddr, int oldval, int newval) futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) { { return -ENOSYS; __asm__ __volatile__( "\n1: lduwa [%2] %%asi, %0\n" "2: casa [%2] %%asi, %0, %1\n" "3:\n" " .section .fixup,#alloc,#execinstr\n" " .align 4\n" "4: ba 3b\n" " mov %3, %0\n" " .previous\n" " .section __ex_table,\"a\"\n" " .align 4\n" " .word 1b, 4b\n" " .word 2b, 4b\n" " .previous\n" : "=&r" (oldval) : "r" (newval), "r" (uaddr), "i" (-EFAULT) : "memory"); return oldval; } } #endif /* !(_SPARC64_FUTEX_H) */ #endif /* !(_SPARC64_FUTEX_H) */
David S. Miller <davem@davemloft.net>David S. Miller <davem@davemloft.net>