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| author | Dave Brolley <brolley@redhat.com> | 2009-11-09 14:59:45 -0500 |
|---|---|---|
| committer | Dave Brolley <brolley@redhat.com> | 2009-11-09 14:59:45 -0500 |
| commit | 52cd76fae6eee285a4d8345ee595f0b8a2907d7b (patch) | |
| tree | c25ea6497334a08c1762b25b72565dd4b8a8baf8 /runtime | |
| parent | 64211010978d0e35c80ec7c119f1986a48f97543 (diff) | |
| parent | dd905cf4dd14d5d53d0bc3696acaba04bda57bb5 (diff) | |
| download | systemtap-steved-52cd76fae6eee285a4d8345ee595f0b8a2907d7b.tar.gz systemtap-steved-52cd76fae6eee285a4d8345ee595f0b8a2907d7b.tar.xz systemtap-steved-52cd76fae6eee285a4d8345ee595f0b8a2907d7b.zip | |
Merge branch 'master' of ssh://sources.redhat.com/git/systemtap
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/runtime.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/runtime/runtime.h b/runtime/runtime.h index a95627ae..ba583aeb 100644 --- a/runtime/runtime.h +++ b/runtime/runtime.h @@ -179,6 +179,17 @@ void cleanup_module(void) _stp_transport_close(); } +#define pseudo_atomic_cmpxchg(v, old, new) ({\ + int ret;\ + unsigned long flags;\ + local_irq_save(flags);\ + ret = atomic_read(v);\ + if (likely(ret == old))\ + atomic_set(v, new);\ + local_irq_restore(flags);\ + ret; }) + + MODULE_LICENSE("GPL"); #endif /* _RUNTIME_H_ */ |