From: xinxin shu <xinxin.shu@intel.com>
Date: Thu, 14 May 2015 19:36:37 +0000 (+0800)
Subject: do not return non-exist extents when doing sparse read
X-Git-Tag: v9.0.2~150^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F4684%2Fhead;p=ceph.git

do not return non-exist extents when doing sparse read

Signed-off-by: xinxin shu <xinxin.shu@intel.com>
---

diff --git a/src/os/KeyValueStore.cc b/src/os/KeyValueStore.cc
index 589227f987f5..1629b1797125 100644
--- a/src/os/KeyValueStore.cc
+++ b/src/os/KeyValueStore.cc
@@ -1730,8 +1730,10 @@ int KeyValueStore::fiemap(coll_t cid, const ghobject_t& oid,
   map<uint64_t, uint64_t> m;
   for (vector<StripObjectMap::StripExtent>::iterator iter = extents.begin();
        iter != extents.end(); ++iter) {
-    uint64_t off = iter->no * header->strip_size + iter->offset;
-    m[off] = iter->len;
+    if (header->bits[iter->no]) {
+      uint64_t off = iter->no * header->strip_size + iter->offset;
+      m[off] = iter->len;
+    }
   }
   ::encode(m, bl);
   return 0;