1 files changed, 28 insertions, 0 deletions
diff --git a/src/common/crc32c_intel_fast.h b/src/common/crc32c_intel_fast.h
new file mode 100644
index 000000000..26a444f60
--- /dev/null
+++ b/src/common/crc32c_intel_fast.h
@@ -0,0 +1,28 @@
+#ifndef CEPH_COMMON_CRC32C_INTEL_FAST_H
+#define CEPH_COMMON_CRC32C_INTEL_FAST_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* is the fast version compiled in */
+extern int ceph_crc32c_intel_fast_exists(void);
+
+#ifdef __x86_64__
+
+extern uint32_t ceph_crc32c_intel_fast(uint32_t crc, unsigned char const *buffer, unsigned len);
+
+#else
+
+static inline uint32_t ceph_crc32c_intel_fast(uint32_t crc, unsigned char const *buffer, unsigned len)
+{
+	return 0;
+}
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif