d4n/filter: Fix cache `exist_key` check to ensure the return value is positive

Signed-off-by: samarah <suriarte@redhat.com>

diff --git a/src/rgw/driver/d4n/rgw_sal_d4n.cc b/src/rgw/driver/d4n/rgw_sal_d4n.cc
index 37875ed4e9424627846a6a1b9838f1fec0afdb7f..10cfdc71feb3ce0a44cf81d2a1f5a7bbf8490ef8 100644 (file)
--- a/src/rgw/driver/d4n/rgw_sal_d4n.cc
+++ b/src/rgw/driver/d4n/rgw_sal_d4n.cc
@@ -558,7 +558,7 @@ int D4NFilterObject::D4NFilterReadOp::iterate(const DoutPrefixProvider* dpp, int
     ldpp_dout(dpp, 20) << "D4NFilterObject::iterate:: " << __func__ << "(): READ FROM CACHE: oid=" << oid_in_cache << " length to read is: " << len_to_read << " part num: " << start_part_num << 
     " read_ofs: " << read_ofs << " part len: " << part_len << dendl;
 
-    if (source->driver->get_policy_driver()->get_cache_policy()->exist_key(oid_in_cache)) { 
+    if (source->driver->get_policy_driver()->get_cache_policy()->exist_key(oid_in_cache) > 0) { 
       // Read From Cache
       auto completed = source->driver->get_cache_driver()->get_async(dpp, y, aio.get(), oid_in_cache, read_ofs, len_to_read, cost, id); 
 
@@ -579,7 +579,7 @@ int D4NFilterObject::D4NFilterReadOp::iterate(const DoutPrefixProvider* dpp, int
        ldpp_dout(dpp, 20) << "D4NFilterObject::iterate:: " << __func__ << "(): READ FROM CACHE: oid=" << oid_in_cache << " length to read is: " << len_to_read << " part num: " << start_part_num << 
       " read_ofs: " << read_ofs << " part len: " << part_len << dendl;
 
-      if ((part_len != obj_max_req_size) && source->driver->get_policy_driver()->get_cache_policy()->exist_key(oid_in_cache)) {
+      if ((part_len != obj_max_req_size) && source->driver->get_policy_driver()->get_cache_policy()->exist_key(oid_in_cache) > 0) {
         // Read From Cache
         auto completed = source->driver->get_cache_driver()->get_async(dpp, y, aio.get(), oid_in_cache, read_ofs, len_to_read, cost, id);