librbd/rwl: correct comment typo

Signed-off-by: Changcheng Liu <changcheng.liu@aliyun.com>

diff --git a/src/librbd/cache/ReplicatedWriteLog.cc b/src/librbd/cache/ReplicatedWriteLog.cc
index 8d107463899274c7a5458e6c687859cc643fb17f..434cdb511198d12eab68e992f099bd97c96451df 100644 (file)
--- a/src/librbd/cache/ReplicatedWriteLog.cc
+++ b/src/librbd/cache/ReplicatedWriteLog.cc
@@ -113,7 +113,7 @@ void ReplicatedWriteLog<I>::perf_start(std::string name) {
     "Number of items",
     PerfHistogramCommon::SCALE_LINEAR, ///< Request size in linear scale
     0,                                 ///< Start at 0
-    1,                                 ///< Quantization unit is 512 bytes
+    1,                                 ///< Quantization unit is 1
     32,                                ///< Writes up to >32k
   };