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| author | Roland Dreier <roland@eddore.topspincom.com> | 2005-07-27 19:12:56 -0700 |
|---|---|---|
| committer | Roland Dreier <roland@eddore.topspincom.com> | 2005-07-27 19:12:56 -0700 |
| commit | 2868bd281fef21d1e73d6b7648a41efc3d75f10c (patch) | |
| tree | 0ad821cfcc9e3f9e8b662d026bec6bb6d4ce69ac /include/asm-s390/processor.h | |
| parent | 6d376756f2cf3478d5a4fdb8d18e958948366b9d (diff) | |
| parent | 41c018b7ecb60b1c2c4d5dee0cd37d32a94c45af (diff) | |
Merge /scratch/Ksrc/linux-git/
Diffstat (limited to 'include/asm-s390/processor.h')
| -rw-r--r-- | include/asm-s390/processor.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h index 8bd14de69e3..4ec652ebb3b 100644 --- a/include/asm-s390/processor.h +++ b/include/asm-s390/processor.h @@ -203,7 +203,10 @@ unsigned long get_wchan(struct task_struct *p); # define cpu_relax() asm volatile ("diag 0,0,68" : : : "memory") #else /* __s390x__ */ # define cpu_relax() \ - asm volatile ("ex 0,%0" : : "i" (__LC_DIAG44_OPCODE) : "memory") + do { \ + if (MACHINE_HAS_DIAG44) \ + asm volatile ("diag 0,0,68" : : : "memory"); \ + } while (0) #endif /* __s390x__ */ /* |