common/buffer: explicitly init zbuf to zeros

This might not be necessary?

Signed-off-by: Sage Weil <sage@inktank.com>

diff --git a/src/common/buffer.cc b/src/common/buffer.cc
index 3a8190f0280beb23eaac9f26caadf0c22e7266a0..064775d2993121eca2e08d98c91c54e73e0bf474 100644 (file)
--- a/src/common/buffer.cc
+++ b/src/common/buffer.cc
@@ -31,8 +31,17 @@
 
 namespace ceph {
 
-
-static unsigned char zbuf[128];
+  // some zeros; used when concatenating buffers with cached crc
+  static unsigned char zbuf[128] = {
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    };
 
 #ifdef BUFFER_DEBUG
 static uint32_t simple_spinlock_t buffer_debug_lock = SIMPLE_SPINLOCK_INITIALIZER;