From: Jianpeng Ma <jianpeng.ma@intel.com>
Date: Fri, 24 Jul 2015 02:12:51 +0000 (+0800)
Subject: osd: make read(off=0,len=0) ec-object work.
X-Git-Tag: v9.1.0~150^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=19a210a0e75b5bfdd9d8f0d4d21d9403b22dac95;p=ceph.git

osd: make read(off=0,len=0) ec-object work.

When len=0, it mean read the whole object. It can work when reading
no-ec object off=0 & len=0. But for ec-object, it can't work.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
---

diff --git a/src/osd/ReplicatedPG.cc b/src/osd/ReplicatedPG.cc
index eb93b30bd0af..46392773f3b2 100644
--- a/src/osd/ReplicatedPG.cc
+++ b/src/osd/ReplicatedPG.cc
@@ -3845,6 +3845,9 @@ int ReplicatedPG::do_osd_ops(OpContext *ctx, vector<OSDOp>& ops)
 	     (op.extent.offset + op.extent.length > op.extent.truncate_size) )
 	  size = op.extent.truncate_size;
 
+	if (op.extent.length == 0) //length is zero mean read the whole object
+	  op.extent.length = size;
+
 	if (op.extent.offset >= size) {
 	  op.extent.length = 0;
 	  trimmed_read = true;