From: Piotr Dałek <git@predictor.org.pl>
Date: Tue, 31 May 2016 19:42:00 +0000 (+0200)
Subject: buffer: don't invalidate crc cache of new ptr before zeroing it
X-Git-Tag: v11.0.0~274^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=d373b8522c4efb8cb954579a8bb626c2a7b9ba7c;p=ceph.git

buffer: don't invalidate crc cache of new ptr before zeroing it

When doing append_zero, we create new bufferptr and then zero it.
Don't invalidate internal crc cache, because at this point it's
empty anyway.

Signed-off-by: Piotr Dałek <git@predictor.org.pl>
---

diff --git a/src/common/buffer.cc b/src/common/buffer.cc
index 3557b3775d4f..0438fd116e81 100644
--- a/src/common/buffer.cc
+++ b/src/common/buffer.cc
@@ -1754,7 +1754,7 @@ static simple_spinlock_t buffer_debug_lock = SIMPLE_SPINLOCK_INITIALIZER;
   void buffer::list::append_zero(unsigned len)
   {
     ptr bp(len);
-    bp.zero();
+    bp.zero(false);
     append(std::move(bp));
   }