1 files changed, 39 insertions, 0 deletions
diff --git a/src/crush/crush_compat.h b/src/crush/crush_compat.h
new file mode 100644
index 000000000..08eb4eab9
--- /dev/null
+++ b/src/crush/crush_compat.h
@@ -0,0 +1,39 @@
+#ifndef CEPH_CRUSH_COMPAT_H
+#define CEPH_CRUSH_COMPAT_H
+
+#include "include/int_types.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* asm-generic/bug.h */
+
+#define BUG_ON(x) assert(!(x))
+
+/* linux/kernel.h */
+
+#define U8_MAX		((__u8)~0U)
+#define S8_MAX		((__s8)(U8_MAX>>1))
+#define S8_MIN		((__s8)(-S8_MAX - 1))
+#define U16_MAX		((__u16)~0U)
+#define S16_MAX		((__s16)(U16_MAX>>1))
+#define S16_MIN		((__s16)(-S16_MAX - 1))
+#define U32_MAX		((__u32)~0U)
+#define S32_MAX		((__s32)(U32_MAX>>1))
+#define S32_MIN		((__s32)(-S32_MAX - 1))
+#define U64_MAX		((__u64)~0ULL)
+#define S64_MAX		((__s64)(U64_MAX>>1))
+#define S64_MIN		((__s64)(-S64_MAX - 1))
+
+/* linux/math64.h */
+
+#define div64_s64(dividend, divisor) ((dividend) / (divisor))
+
+/* linux/slab.h */
+
+#define kmalloc(size, flags) malloc(size)
+#define kfree(x) do { if (x) free(x); } while (0)
+
+#endif /* CEPH_CRUSH_COMPAT_H */