From b4a95994c6ce0ae11dc865526e71ed00d45d6bc7 Mon Sep 17 00:00:00 2001
From: myoungwon oh <ohmyoungwon@gmail.com>
Date: Thu, 27 Aug 2020 10:38:43 +0900
Subject: [PATCH] osd: make checking intersect range simple

Signed-off-by: Myoungwon Oh <myoungwon.oh@samsumg.com>
---
 src/osd/PrimaryLogPG.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/osd/PrimaryLogPG.cc b/src/osd/PrimaryLogPG.cc
index 223eeeb489e..2a563170039 100644
--- a/src/osd/PrimaryLogPG.cc
+++ b/src/osd/PrimaryLogPG.cc
@@ -6884,8 +6884,9 @@ int PrimaryLogPG::do_osd_ops(OpContext *ctx, vector<OSDOp>& ops)
 	}
 
 	for (auto &p : oi.manifest.chunk_map) {
-	  if ((p.first <= src_offset && p.first + p.second.length > src_offset) ||
-	      (p.first > src_offset && p.first <= src_offset + src_length)) {
+	  interval_set<uint64_t> chunk;
+	  chunk.insert(p.first, p.second.length);
+	  if (chunk.intersects(src_offset, src_length)) {
 	    dout(20) << __func__ << " overlapped !! offset: " << src_offset << " length: " << src_length
 		    << " chunk_info: " << p << dendl;
 	    result = -EOPNOTSUPP;
-- 
2.47.3