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-rw-r--r--include/linux/getcpu.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/getcpu.h b/include/linux/getcpu.h
new file mode 100644
index 000000000000..c7372d7a97be
--- /dev/null
+++ b/include/linux/getcpu.h
@@ -0,0 +1,18 @@
+#ifndef _LINUX_GETCPU_H
+#define _LINUX_GETCPU_H 1
+
+/* Cache for getcpu() to speed it up. Results might be a short time
+ out of date, but will be faster.
+
+ User programs should not refer to the contents of this structure.
+ I repeat they should not refer to it. If they do they will break
+ in future kernels.
+
+ It is only a private cache for vgetcpu(). It will change in future kernels.
+ The user program must store this information per thread (__thread)
+ If you want 100% accurate information pass NULL instead. */
+struct getcpu_cache {
+ unsigned long blob[128 / sizeof(long)];
+};
+
+#endif