common/Checksummer: Eliminates data copying in crc32c calculation

Signed-off-by: Igor Fedotov <ifedotov@mirantis.com>

diff --git a/src/common/Checksummer.h b/src/common/Checksummer.h
index 2e062e075d4b5194fe54f0e3655d201d7168791c..28406540b37463d44c27512ec18600e30c46af0b 100644 (file)
--- a/src/common/Checksummer.h
+++ b/src/common/Checksummer.h
@@ -24,9 +24,7 @@ public:
       size_t len,
       bufferlist::const_iterator& p
       ) {
-      bufferlist t;
-      p.copy(len, t);
-      return t.crc32c(-1);
+      return p.crc32c(len, -1);
     }
   };